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[openeuler:OLK-6.6 1919/1919] include/linux/psp-hygon.h:219:5: warning: no previous prototype for function 'psp_register_cmd_notifier'
by kernel test robot 11 Feb '25

11 Feb '25

Hi niuyongwen, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 002103c03aba84e0990a605bc463dcd80bff4235 commit: 518c81d56c055affc71650b1ad1ba7f86e5ee867 [1919/1919] arch/x86/kvm: Support tkm virtualization config: x86_64-buildonly-randconfig-003-20250211 (https://download.01.org/0day-ci/archive/20250211/202502111647.IzBuHE1M-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250211/202502111647.IzBuHE1M-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502111647.IzBuHE1M-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kvm/psp.c:12: In file included from include/linux/kvm_host.h:16: In file included from include/linux/mm.h:2242: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ In file included from arch/x86/kvm/psp.c:15: >> include/linux/psp-hygon.h:219:5: warning: no previous prototype for function 'psp_register_cmd_notifier' [-Wmissing-prototypes] 219 | int psp_register_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } | ^ include/linux/psp-hygon.h:219:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 219 | int psp_register_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } | ^ | static >> include/linux/psp-hygon.h:220:5: warning: no previous prototype for function 'psp_unregister_cmd_notifier' [-Wmissing-prototypes] 220 | int psp_unregister_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } | ^ include/linux/psp-hygon.h:220:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 220 | int psp_unregister_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } | ^ | static arch/x86/kvm/psp.c:105:21: warning: no previous prototype for function 'map_tbl_dump' [-Wmissing-prototypes] 105 | void __maybe_unused map_tbl_dump(const char *title, struct addr_map_tbls *tbls) | ^ arch/x86/kvm/psp.c:105:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 105 | void __maybe_unused map_tbl_dump(const char *title, struct addr_map_tbls *tbls) | ^ | static arch/x86/kvm/psp.c:118:21: warning: no previous prototype for function 'g2h_tbl_dump' [-Wmissing-prototypes] 118 | void __maybe_unused g2h_tbl_dump(const char *title, struct gpa2hva_tbls *tbls) | ^ arch/x86/kvm/psp.c:118:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 118 | void __maybe_unused g2h_tbl_dump(const char *title, struct gpa2hva_tbls *tbls) | ^ | static 9 warnings generated. vim +/psp_register_cmd_notifier +219 include/linux/psp-hygon.h d0b3a770d8e20d chench00 2024-08-01 218 d0b3a770d8e20d chench00 2024-08-01 @219 int psp_register_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } d0b3a770d8e20d chench00 2024-08-01 @220 int psp_unregister_cmd_notifier(uint32_t cmd_id, p2c_notifier_t notifier) { return -ENODEV; } d0b3a770d8e20d chench00 2024-08-01 221 :::::: The code at line 219 was first introduced by commit :::::: d0b3a770d8e20d953fe2a74ea8c4b5f4767c4add crypto: command co-processor: Add another mailbox interrupt support for PSP sending command to X86 :::::: TO: chench00 <chench(a)hygon.cn> :::::: CC: chench00 <chench(a)hygon.cn> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/1] fix CVE-2025-21668
by Lin Yujun 11 Feb '25

11 Feb '25

Xiaolei Wang (1): pmdomain: imx8mp-blk-ctrl: add missing loop break condition drivers/pmdomain/imx/imx8mp-blk-ctrl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1

2 2

[openeuler:OLK-5.10 2735/2735] kernel/sched/core.c:8279:18: error: member reference base type 'struct task_group *(struct task_struct *)' is not a structure or union
by kernel test robot 11 Feb '25

11 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 7152a244f5f9fb024d93d293168ce0b62309680a commit: b7772972a0a76efac27078392f3f706914fe2af7 [2735/2735] sched/core: Add cpu.steal_task in cgroup v1 cpu subsystem config: x86_64-randconfig-103-20250211 (https://download.01.org/0day-ci/archive/20250211/202502111634.nTWpsBtE-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250211/202502111634.nTWpsBtE-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502111634.nTWpsBtE-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/sched/core.c:10: In file included from include/trace/events/sched.h:738: In file included from include/trace/define_trace.h:102: In file included from include/trace/trace_events.h:21: In file included from include/linux/trace_events.h:6: In file included from include/linux/ring_buffer.h:5: In file included from include/linux/mm.h:1587: include/linux/vmstat.h:417:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 417 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 418 | item]; | ~~~~ include/linux/vmstat.h:424:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 424 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 425 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 436 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 437 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/sched/core.c:13: kernel/sched/sched.h:1863:15: warning: cast from 'void (*)(struct rq *)' to 'void (*)(struct callback_head *)' converts to incompatible function type [-Wcast-function-type-strict] 1863 | head->func = (void (*)(struct callback_head *))func; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:2750:6: warning: no previous prototype for function 'sched_set_stop_task' [-Wmissing-prototypes] 2750 | void sched_set_stop_task(int cpu, struct task_struct *stop) | ^ kernel/sched/core.c:2750:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2750 | void sched_set_stop_task(int cpu, struct task_struct *stop) | ^ | static kernel/sched/core.c:4126:10: warning: cast from 'void (*)(struct callback_head *)' to 'void (*)(struct rq *)' converts to incompatible function type [-Wcast-function-type-strict] 4126 | func = (void (*)(struct rq *))head->func; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:8279:3: error: use of undeclared identifier 'root_task_group'; did you mean 'task_group'? 8279 | root_task_group.steal_task = TG_STEAL_NO; | ^~~~~~~~~~~~~~~ | task_group kernel/sched/sched.h:2058:34: note: 'task_group' declared here 2058 | static inline struct task_group *task_group(struct task_struct *p) | ^ >> kernel/sched/core.c:8279:18: error: member reference base type 'struct task_group *(struct task_struct *)' is not a structure or union 8279 | root_task_group.steal_task = TG_STEAL_NO; | ~~~~~~~~~~~~~~~^~~~~~~~~~~ >> kernel/sched/core.c:8279:32: error: use of undeclared identifier 'TG_STEAL_NO'; did you mean 'PGSTEAL_ANON'? 8279 | root_task_group.steal_task = TG_STEAL_NO; | ^~~~~~~~~~~ | PGSTEAL_ANON include/linux/vm_event_item.h:41:3: note: 'PGSTEAL_ANON' declared here 41 | PGSTEAL_ANON, | ^ 7 warnings and 3 errors generated. vim +8279 kernel/sched/core.c 8253 8254 wait_bit_init(); 8255 8256 #ifdef CONFIG_FAIR_GROUP_SCHED 8257 ptr += 2 * nr_cpu_ids * sizeof(void **); 8258 #endif 8259 #ifdef CONFIG_RT_GROUP_SCHED 8260 ptr += 2 * nr_cpu_ids * sizeof(void **); 8261 #endif 8262 if (ptr) { 8263 ptr = (unsigned long)kzalloc(ptr, GFP_NOWAIT); 8264 8265 #ifdef CONFIG_FAIR_GROUP_SCHED 8266 root_task_group.se = (struct sched_entity **)ptr; 8267 ptr += nr_cpu_ids * sizeof(void **); 8268 8269 root_task_group.cfs_rq = (struct cfs_rq **)ptr; 8270 ptr += nr_cpu_ids * sizeof(void **); 8271 8272 root_task_group.shares = ROOT_TASK_GROUP_LOAD; 8273 init_cfs_bandwidth(&root_task_group.cfs_bandwidth); 8274 #endif /* CONFIG_FAIR_GROUP_SCHED */ 8275 #ifdef CONFIG_QOS_SCHED_SMT_EXPELLER 8276 root_task_group.smt_expell = TG_SMT_EXPELL; 8277 #endif 8278 #ifdef CONFIG_SCHED_STEAL > 8279 root_task_group.steal_task = TG_STEAL_NO; 8280 #endif 8281 #ifdef CONFIG_RT_GROUP_SCHED 8282 root_task_group.rt_se = (struct sched_rt_entity **)ptr; 8283 ptr += nr_cpu_ids * sizeof(void **); 8284 8285 root_task_group.rt_rq = (struct rt_rq **)ptr; 8286 ptr += nr_cpu_ids * sizeof(void **); 8287 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] arm64: mm: Update PBHA related variable name
by Wupeng Ma 11 Feb '25

11 Feb '25

From: Ma Wupeng <mawupeng1(a)huawei.com> hulk inclusion category: cleanup bugzilla: https://gitee.com/openeuler/kernel/issues/IBHLGK -------------------------------- Update PBHA related variable to a suitable one. Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- drivers/firmware/efi/libstub/fdt.c | 10 +++++----- drivers/soc/hisilicon/pbha.c | 4 +--- include/linux/pbha.h | 4 ++-- 3 files changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c index 30aeb2b54569..caa1b0deb6ff 100644 --- a/drivers/firmware/efi/libstub/fdt.c +++ b/drivers/firmware/efi/libstub/fdt.c @@ -31,7 +31,7 @@ static void fdt_update_cell_size(void *fdt) #ifdef CONFIG_ARM64_PBHA extern bool efi_pbha; -static efi_status_t fdt_init_hbm_mode(void *fdt, int node) +static efi_status_t fdt_init_moc_mode(void *fdt, int node) { efi_guid_t oem_config_guid = EFI_OEMCONFIG_VARIABLE_GUID; unsigned long size; @@ -44,12 +44,12 @@ static efi_status_t fdt_init_hbm_mode(void *fdt, int node) if (!efi_pbha) goto out; - efi_status = get_efi_var(L"HBMMode", &oem_config_guid, NULL, &size, + efi_status = get_efi_var(L"MemoryOnChipMode", &oem_config_guid, NULL, &size, &hbm_mode); if (efi_status != EFI_SUCCESS) goto out; - if (hbm_mode != HBM_MODE_CACHE) + if (hbm_mode != MOC_MODE_CACHE) goto out; fdt_val32 = 1; @@ -68,7 +68,7 @@ static efi_status_t fdt_init_hbm_mode(void *fdt, int node) return EFI_SUCCESS; } #else -static inline efi_status_t fdt_init_hbm_mode(void *fdt, int node) +static inline efi_status_t fdt_init_moc_mode(void *fdt, int node) { return EFI_SUCCESS; } @@ -195,7 +195,7 @@ static efi_status_t update_fdt(void *orig_fdt, unsigned long orig_fdt_size, } } - if (fdt_init_hbm_mode(fdt, node) != EFI_SUCCESS) + if (fdt_init_moc_mode(fdt, node) != EFI_SUCCESS) goto fdt_set_fail; /* Shrink the FDT back to its minimum size: */ diff --git a/drivers/soc/hisilicon/pbha.c b/drivers/soc/hisilicon/pbha.c index 9e385c93bab5..6fc96ea89205 100644 --- a/drivers/soc/hisilicon/pbha.c +++ b/drivers/soc/hisilicon/pbha.c @@ -15,8 +15,6 @@ #include <asm/setup.h> -#define HBM_MODE_CACHE 1 - __ro_after_init DEFINE_STATIC_KEY_FALSE(pbha_bit0_enabled); __ro_after_init DEFINE_STATIC_KEY_FALSE(pbha_bit0_kernel_enabled); @@ -43,7 +41,7 @@ void __init early_pbha_bit0_init(void) prop = fdt_getprop(fdt, node, "linux,pbha-bit0", NULL); if (!prop) return; - if (*prop == HBM_MODE_CACHE) + if (*prop == MOC_MODE_CACHE) pbha_enabled_phase_1 = true; } diff --git a/include/linux/pbha.h b/include/linux/pbha.h index a8ac441628bd..bf4abf4d55f9 100644 --- a/include/linux/pbha.h +++ b/include/linux/pbha.h @@ -16,8 +16,8 @@ EFI_GUID(0x21f3b3c5, 0x946d, 0x41c1, 0x83, 0x8c, 0x19, 0x4e, 0x48, \ 0xaa, 0x41, 0xe2) -#define HBM_MODE_MEMORY 0 -#define HBM_MODE_CACHE 1 +#define MOC_MODE_MEMORY 0 +#define MOC_MODE_CACHE 1 #ifdef CONFIG_ARM64_PBHA DECLARE_STATIC_KEY_FALSE(pbha_bit0_enabled); -- 2.43.0

2 1

[openeuler:OLK-5.10 2735/2735] ld: drivers/video/fbdev/ls2k500sfb.c:244: undefined reference to `fg_console'
by kernel test robot 11 Feb '25

11 Feb '25

Hi Chong, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 7152a244f5f9fb024d93d293168ce0b62309680a commit: d74f3b70d73220d919db010ec1c81aa1d89082b6 [2735/2735] fbdev: add ls2k500sfb driver for ls2k500 bmc. config: x86_64-randconfig-104-20250211 (https://download.01.org/0day-ci/archive/20250211/202502111437.CmqnjjLj-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250211/202502111437.CmqnjjLj-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502111437.CmqnjjLj-lkp@intel.com/ All errors (new ones prefixed by >>): ld: drivers/video/fbdev/ls2k500sfb.o: in function `ls2k500sfb_events_fn': drivers/video/fbdev/ls2k500sfb.c:244: undefined reference to `fg_console' >> ld: drivers/video/fbdev/ls2k500sfb.c:244: undefined reference to `fg_console' >> ld: drivers/video/fbdev/ls2k500sfb.c:244: undefined reference to `fg_console' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2737/2737] versioncheck: ./drivers/scsi/linkdata/ps3stor/linux/ps3_base.c: 12 linux/version.h not needed.
by kernel test robot 11 Feb '25

11 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 7152a244f5f9fb024d93d293168ce0b62309680a commit: 13f748eddc9dfdec8a18922ed601e1906dcb183a [2737/2737] [PATCH] SCSI: Linkdata: Supports Linkdata HBA/RAID Controllers reproduce: (https://download.01.org/0day-ci/archive/20250211/202502111345.dqESsrdW-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502111345.dqESsrdW-lkp@intel.com/ versioncheck warnings: (new ones prefixed by >>) INFO PATH=/opt/cross/rustc-1.58.0-bindgen-0.56.0/cargo/bin:/opt/cross/clang-19/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin /usr/bin/timeout -k 100 3h /usr/bin/make KCFLAGS= -Wtautological-compare -Wno-error=return-type -Wreturn-type -Wcast-function-type -funsigned-char -Wundef -fstrict-flex-arrays=3 -Wformat-overflow -Wformat-truncation -Wenum-conversion W=1 --keep-going LLVM=1 -j32 ARCH=x86_64 versioncheck find ./* \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o \ -name '*.[hcS]' -type f -print | sort \ | xargs perl -w ./scripts/checkversion.pl ./arch/csky/include/asm/atomic.h: 6 linux/version.h not needed. ./arch/csky/include/asm/io.h: 9 linux/version.h not needed. ./arch/csky/include/asm/thread_info.h: 9 linux/version.h not needed. ./arch/csky/include/asm/uaccess.h: 15 linux/version.h not needed. ./arch/csky/kernel/process.c: 5 linux/version.h not needed. ./arch/csky/mm/dma-mapping.c: 12 linux/version.h not needed. ./arch/csky/mm/fault.c: 16 linux/version.h not needed. ./arch/s390/include/asm/setup.h: 183: need linux/version.h ./arch/um/drivers/vector_kern.c: 11 linux/version.h not needed. ./drivers/block/rsxx/rsxx_priv.h: 14 linux/version.h not needed. ./drivers/char/ipmi/ipmi_si_ls2k500.c: 19 linux/version.h not needed. ./drivers/crypto/cavium/cpt/cptpf_main.c: 13 linux/version.h not needed. ./drivers/crypto/cavium/zip/common.h: 59 linux/version.h not needed. ./drivers/crypto/ccree/cc_driver.h: 26 linux/version.h not needed. ./drivers/crypto/montage/tsse/tsse_vuart.c: 21 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: 62 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c: 28 linux/version.h not needed. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c: 26 linux/version.h not needed. ./drivers/gpu/drm/inspur/inspur_drm_de.c: 513: need linux/version.h ./drivers/gpu/drm/inspur/inspur_drm_drv.c: 456: need linux/version.h ./drivers/gpu/drm/pl111/pl111_display.c: 14 linux/version.h not needed. ./drivers/gpu/drm/pl111/pl111_drv.c: 47 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_display.c: 14 linux/version.h not needed. ./drivers/gpu/drm/tve200/tve200_drv.c: 38 linux/version.h not needed. ./drivers/hv/hv.c: 16 linux/version.h not needed. ./drivers/i2c/busses/i2c-brcmstb.c: 25 linux/version.h not needed. ./drivers/i2c/busses/i2c-xgene-slimpro.c: 22 linux/version.h not needed. ./drivers/media/pci/cx25821/cx25821.h: 31 linux/version.h not needed. ./drivers/media/platform/s3c-camif/camif-core.c: 26 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-common.h: 16 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c: 31 linux/version.h not needed. ./drivers/media/platform/sti/c8sectpfe/c8sectpfe-dvb.c: 14 linux/version.h not needed. ./drivers/media/usb/uvc/uvc_driver.c: 18 linux/version.h not needed. ./drivers/net/ethernet/3snic/sssnic/include/kernel/sss_linux_kernel.h: 12 linux/version.h not needed. ./drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c: 21 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/edma_drv/bma_include.h: 32 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/edma_drv/bma_pci.c: 17 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_include.h: 20 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_main.c: 22 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_mce.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/bma/kbox_drv/kbox_ram_op.c: 16 linux/version.h not needed. ./drivers/net/ethernet/huawei/hinic/ossl_knl.h: 22 linux/version.h not needed. ./drivers/net/ethernet/huawei/hinic3/ossl_knl_linux.h: 12 linux/version.h not needed. ./drivers/net/ethernet/mucse/rnpm/rnpm_common.h: 7 linux/version.h not needed. ./drivers/net/ethernet/nebula-matrix/m1600/common.h: 12 linux/version.h not needed. ./drivers/net/ethernet/nebula-matrix/m1600/txrx.c: 9 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede.h: 10 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_ethtool.c: 7 linux/version.h not needed. ./drivers/net/ethernet/qlogic/qede/qede_main.c: 10 linux/version.h not needed. ./drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h: 26 linux/version.h not needed. ./drivers/net/usb/lan78xx.c: 5 linux/version.h not needed. ./drivers/net/wireless/rsi/rsi_91x_ps.c: 19 linux/version.h not needed. ./drivers/scsi/cxgbi/libcxgbi.h: 27 linux/version.h not needed. ./drivers/scsi/hisi_raid/hiraid_main.c: 9 linux/version.h not needed. ./drivers/scsi/huawei/hifc/hifc_knl_adp.h: 23 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/linux/ps3_base.c: 12 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/linux/ps3_cli.c: 15 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/linux/ps3_driver_log.c: 4 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_device_manager.h: 10 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_device_manager_sas.h: 7 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_qos.c: 7 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_rb_tree.h: 8 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_sas_transport.h: 10 linux/version.h not needed. >> ./drivers/scsi/linkdata/ps3stor/ps3_scsi_cmd_err.c: 10 linux/version.h not needed. ./drivers/scsi/qedf/qedf.h: 15 linux/version.h not needed. ./drivers/scsi/qedf/qedf_dbg.h: 13 linux/version.h not needed. ./drivers/scsi/qedi/qedi_dbg.h: 14 linux/version.h not needed. ./drivers/scsi/sssraid/sssraid_fw.c: 6 linux/version.h not needed. ./drivers/scsi/sssraid/sssraid_os.c: 6 linux/version.h not needed. ./drivers/soc/tegra/powergate-bpmp.c: 10 linux/version.h not needed. ./drivers/staging/media/atomisp/include/linux/atomisp.h: 23 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/drv_types.h: 17 linux/version.h not needed. ./drivers/staging/rtl8723bs/include/ioctl_cfg80211.h: 10 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_cdev_file.c: 23 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_device.c: 33 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_genl.c: 26 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_genl_admin.c: 20 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_main.c: 28 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_tp.c: 26 linux/version.h not needed. ./drivers/ub/urma/ubcore/ubcore_umem.c: 26 linux/version.h not needed. ./drivers/ub/urma/uburma/uburma_main.c: 29 linux/version.h not needed. ./drivers/ub/urma/uburma/uburma_mmap.c: 21 linux/version.h not needed. ./drivers/watchdog/ziirave_wdt.c: 21 linux/version.h not needed. ./fs/eulerfs/euler.h: 20 linux/version.h not needed. ./fs/eulerfs/euler_common.h: 25 linux/version.h not needed. ./fs/proc/etmem_scan.c: 13 linux/version.h not needed. ./include/linux/qed/qed_ll2_if.h: 15 linux/version.h not needed. ./kernel/bpf/syscall.c: 20 linux/version.h not needed. ./samples/bpf/sampleip_kern.c: 7 linux/version.h not needed. ./samples/bpf/trace_event_kern.c: 8 linux/version.h not needed. ./sound/soc/codecs/cs35l35.c: 12 linux/version.h not needed. ./sound/soc/codecs/cs42l42.c: 14 linux/version.h not needed. ./tools/lib/bpf/libbpf_sched.h: 21 linux/version.h not needed. ./tools/perf/include/bpf/bpf.h: 70: need linux/version.h ./tools/perf/tests/bpf-script-example.c: 49: need linux/version.h ./tools/perf/tests/bpf-script-test-kbuild.c: 21: need linux/version.h ./tools/perf/tests/bpf-script-test-prologue.c: 47: need linux/version.h ./tools/perf/tests/bpf-script-test-relocation.c: 51: need linux/version.h ./tools/testing/selftests/bpf/progs/test_map_lock.c: 4 linux/version.h not needed. ./tools/testing/selftests/bpf/progs/test_send_signal_kern.c: 4 linux/version.h not needed. ./tools/testing/selftests/bpf/progs/test_spin_lock.c: 4 linux/version.h not needed. ./tools/testing/selftests/bpf/progs/test_tcp_estats.c: 37 linux/version.h not needed. ./tools/testing/selftests/wireguard/qemu/init.c: 25 linux/version.h not needed. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] gpio: xilinx: Convert gpio_lock to raw spinlock
by Liu Chuang 11 Feb '25

11 Feb '25

From: Sean Anderson <sean.anderson(a)linux.dev> stable inclusion from stable-v6.6.74 commit b0111650ee596219bb5defa0ce1a1308e6e77ccf category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBL2TF CVE: CVE-2025-21684 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 9860370c2172704b6b4f0075a0c2a29fd84af96a upstream. irq_chip functions may be called in raw spinlock context. Therefore, we must also use a raw spinlock for our own internal locking. This fixes the following lockdep splat: [ 5.349336] ============================= [ 5.353349] [ BUG: Invalid wait context ] [ 5.357361] 6.13.0-rc5+ #69 Tainted: G W [ 5.363031] ----------------------------- [ 5.367045] kworker/u17:1/44 is trying to lock: [ 5.371587] ffffff88018b02c0 (&chip->gpio_lock){....}-{3:3}, at: xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8)) [ 5.380079] other info that might help us debug this: [ 5.385138] context-{5:5} [ 5.387762] 5 locks held by kworker/u17:1/44: [ 5.392123] #0: ffffff8800014958 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3204) [ 5.402260] #1: ffffffc082fcbdd8 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3205) [ 5.411528] #2: ffffff880172c900 (&dev->mutex){....}-{4:4}, at: __device_attach (drivers/base/dd.c:1006) [ 5.419929] #3: ffffff88039c8268 (request_class#2){+.+.}-{4:4}, at: __setup_irq (kernel/irq/internals.h:156 kernel/irq/manage.c:1596) [ 5.428331] #4: ffffff88039c80c8 (lock_class#2){....}-{2:2}, at: __setup_irq (kernel/irq/manage.c:1614) [ 5.436472] stack backtrace: [ 5.439359] CPU: 2 UID: 0 PID: 44 Comm: kworker/u17:1 Tainted: G W 6.13.0-rc5+ #69 [ 5.448690] Tainted: [W]=WARN [ 5.451656] Hardware name: xlnx,zynqmp (DT) [ 5.455845] Workqueue: events_unbound deferred_probe_work_func [ 5.461699] Call trace: [ 5.464147] show_stack+0x18/0x24 C [ 5.467821] dump_stack_lvl (lib/dump_stack.c:123) [ 5.471501] dump_stack (lib/dump_stack.c:130) [ 5.474824] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176) [ 5.478758] lock_acquire (arch/arm64/include/asm/percpu.h:40 kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851 kernel/locking/lockdep.c:5814) [ 5.482429] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 5.486797] xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8)) [ 5.490737] irq_enable (kernel/irq/internals.h:236 kernel/irq/chip.c:170 kernel/irq/chip.c:439 kernel/irq/chip.c:432 kernel/irq/chip.c:345) [ 5.494060] __irq_startup (kernel/irq/internals.h:241 kernel/irq/chip.c:180 kernel/irq/chip.c:250) [ 5.497645] irq_startup (kernel/irq/chip.c:270) [ 5.501143] __setup_irq (kernel/irq/manage.c:1807) [ 5.504728] request_threaded_irq (kernel/irq/manage.c:2208) Fixes: a32c7caea292 ("gpio: gpio-xilinx: Add interrupt support") Signed-off-by: Sean Anderson <sean.anderson(a)linux.dev> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/20250110163354.2012654-1-sean.anderson@linux.dev Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/gpio/gpio-xilinx.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c index a16945e8319e..956ea2957833 100644 --- a/drivers/gpio/gpio-xilinx.c +++ b/drivers/gpio/gpio-xilinx.c @@ -66,7 +66,7 @@ struct xgpio_instance { DECLARE_BITMAP(state, 64); DECLARE_BITMAP(last_irq_read, 64); DECLARE_BITMAP(dir, 64); - spinlock_t gpio_lock; /* For serializing operations */ + raw_spinlock_t gpio_lock; /* For serializing operations */ int irq; DECLARE_BITMAP(enable, 64); DECLARE_BITMAP(rising_edge, 64); @@ -180,14 +180,14 @@ static void xgpio_set(struct gpio_chip *gc, unsigned int gpio, int val) struct xgpio_instance *chip = gpiochip_get_data(gc); int bit = xgpio_to_bit(chip, gpio); - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); /* Write to GPIO signal and set its direction to output */ __assign_bit(bit, chip->state, val); xgpio_write_ch(chip, XGPIO_DATA_OFFSET, bit, chip->state); - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); } /** @@ -211,7 +211,7 @@ static void xgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask, bitmap_remap(hw_mask, mask, chip->sw_map, chip->hw_map, 64); bitmap_remap(hw_bits, bits, chip->sw_map, chip->hw_map, 64); - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); bitmap_replace(state, chip->state, hw_bits, hw_mask, 64); @@ -219,7 +219,7 @@ static void xgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask, bitmap_copy(chip->state, state, 64); - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); } /** @@ -237,13 +237,13 @@ static int xgpio_dir_in(struct gpio_chip *gc, unsigned int gpio) struct xgpio_instance *chip = gpiochip_get_data(gc); int bit = xgpio_to_bit(chip, gpio); - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); /* Set the GPIO bit in shadow register and set direction as input */ __set_bit(bit, chip->dir); xgpio_write_ch(chip, XGPIO_TRI_OFFSET, bit, chip->dir); - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); return 0; } @@ -266,7 +266,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) struct xgpio_instance *chip = gpiochip_get_data(gc); int bit = xgpio_to_bit(chip, gpio); - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); /* Write state of GPIO signal */ __assign_bit(bit, chip->state, val); @@ -276,7 +276,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) __clear_bit(bit, chip->dir); xgpio_write_ch(chip, XGPIO_TRI_OFFSET, bit, chip->dir); - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); return 0; } @@ -404,7 +404,7 @@ static void xgpio_irq_mask(struct irq_data *irq_data) int bit = xgpio_to_bit(chip, irq_offset); u32 mask = BIT(bit / 32), temp; - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); __clear_bit(bit, chip->enable); @@ -414,7 +414,7 @@ static void xgpio_irq_mask(struct irq_data *irq_data) temp &= ~mask; xgpio_writereg(chip->regs + XGPIO_IPIER_OFFSET, temp); } - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); gpiochip_disable_irq(&chip->gc, irq_offset); } @@ -434,7 +434,7 @@ static void xgpio_irq_unmask(struct irq_data *irq_data) gpiochip_enable_irq(&chip->gc, irq_offset); - spin_lock_irqsave(&chip->gpio_lock, flags); + raw_spin_lock_irqsave(&chip->gpio_lock, flags); __set_bit(bit, chip->enable); @@ -453,7 +453,7 @@ static void xgpio_irq_unmask(struct irq_data *irq_data) xgpio_writereg(chip->regs + XGPIO_IPIER_OFFSET, val); } - spin_unlock_irqrestore(&chip->gpio_lock, flags); + raw_spin_unlock_irqrestore(&chip->gpio_lock, flags); } /** @@ -518,7 +518,7 @@ static void xgpio_irqhandler(struct irq_desc *desc) chained_irq_enter(irqchip, desc); - spin_lock(&chip->gpio_lock); + raw_spin_lock(&chip->gpio_lock); xgpio_read_ch_all(chip, XGPIO_DATA_OFFSET, all); @@ -535,7 +535,7 @@ static void xgpio_irqhandler(struct irq_desc *desc) bitmap_copy(chip->last_irq_read, all, 64); bitmap_or(all, rising, falling, 64); - spin_unlock(&chip->gpio_lock); + raw_spin_unlock(&chip->gpio_lock); dev_dbg(gc->parent, "IRQ rising %*pb falling %*pb\n", 64, rising, 64, falling); @@ -626,7 +626,7 @@ static int xgpio_probe(struct platform_device *pdev) bitmap_set(chip->hw_map, 0, width[0]); bitmap_set(chip->hw_map, 32, width[1]); - spin_lock_init(&chip->gpio_lock); + raw_spin_lock_init(&chip->gpio_lock); chip->gc.base = -1; chip->gc.ngpio = bitmap_weight(chip->hw_map, 64); -- 2.34.1

2 1

[PATCH OLK-5.10] ALSA: seq: oss: Fix races at processing SysEx messages
by Gu Bowen 11 Feb '25

11 Feb '25

From: Takashi Iwai <tiwai(a)suse.de> stable inclusion from stable-v6.6.70 commit d2392b79d8af3714ea8878b71c66dc49d3110f44 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBID2T CVE: CVE-2024-57893 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 0179488ca992d79908b8e26b9213f1554fc5bacc upstream. OSS sequencer handles the SysEx messages split in 6 bytes packets, and ALSA sequencer OSS layer tries to combine those. It stores the data in the internal buffer and this access is racy as of now, which may lead to the out-of-bounds access. As a temporary band-aid fix, introduce a mutex for serializing the process of the SysEx message packets. Reported-by: Kun Hu <huk23(a)m.fudan.edu.cn> Closes: https://lore.kernel.org/2B7E93E4-B13A-4AE4-8E87-306A8EE9BBB7@m.fudan.edu.cn Cc: <stable(a)vger.kernel.org> Link: https://patch.msgid.link/20241230110543.32454-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai(a)suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Conflicts: sound/core/seq/oss/seq_oss_synth.c [Commit 54da6a092431("locking: Introduce __cleanup() based infrastructure") not merged, The guard() function is not introduced.] Signed-off-by: Gu Bowen <gubowen5(a)huawei.com> --- sound/core/seq/oss/seq_oss_synth.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c index 1b8409ec2c97..f600984113f1 100644 --- a/sound/core/seq/oss/seq_oss_synth.c +++ b/sound/core/seq/oss/seq_oss_synth.c @@ -66,6 +66,7 @@ static struct seq_oss_synth midi_synth_dev = { }; static DEFINE_SPINLOCK(register_lock); +static DEFINE_MUTEX(sysex_mutex); /* * prototypes @@ -491,16 +492,20 @@ snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf, unsigned char *dest; struct seq_oss_synth_sysex *sysex; struct seq_oss_synthinfo *info; + int err = -EINVAL; info = snd_seq_oss_synth_info(dp, dev); if (!info) return -ENXIO; + mutex_lock(&sysex_mutex); sysex = info->sysex; if (sysex == NULL) { sysex = kzalloc(sizeof(*sysex), GFP_KERNEL); - if (sysex == NULL) - return -ENOMEM; + if (sysex == NULL) { + err = -ENOMEM; + goto unlock_sysex; + } info->sysex = sysex; } @@ -525,19 +530,25 @@ snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf, if (sysex->skip) { sysex->skip = 0; sysex->len = 0; - return -EINVAL; /* skip */ + err = -EINVAL; /* skip */ + goto unlock_sysex; } /* copy the data to event record and send it */ ev->flags = SNDRV_SEQ_EVENT_LENGTH_VARIABLE; - if (snd_seq_oss_synth_addr(dp, dev, ev)) - return -EINVAL; + if (snd_seq_oss_synth_addr(dp, dev, ev)) { + err = -EINVAL; + goto unlock_sysex; + } ev->data.ext.len = sysex->len; ev->data.ext.ptr = sysex->buf; sysex->len = 0; + mutex_unlock(&sysex_mutex); return 0; } - return -EINVAL; /* skip */ +unlock_sysex: + mutex_unlock(&sysex_mutex); + return err; /* skip */ } /* -- 2.25.1

2 1

[openeuler:openEuler-1.0-LTS 1422/1422] kernel/sched/.tmp_core.o: warning: objtool: missing symbol for section .text.unlikely
by kernel test robot 11 Feb '25

11 Feb '25

Hi Thomas, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: e7e24815dc35fd89241933daa8733b46f157ec60 commit: f2701b77bbd992f3df4631de8493f21db0830452 [1422/1422] Merge 4.18-rc7 into master to pick up the KVM dependcy config: x86_64-buildonly-randconfig-002-20250210 (https://download.01.org/0day-ci/archive/20250211/202502110821.EGD3OpQb-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250211/202502110821.EGD3OpQb-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502110821.EGD3OpQb-lkp@intel.com/ All warnings (new ones prefixed by >>): | ^~~~~~~ include/linux/compiler.h:58:49: note: in definition of macro '__trace_if' 58 | if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ | ^~~~ kernel/sched/core.c:6738:17: note: in expansion of macro 'if' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~ include/linux/compiler.h:45:26: note: in expansion of macro '__branch_check__' 45 | # define likely(x) (__branch_check__(x, 1, __builtin_constant_p(x))) | ^~~~~~~~~~~~~~~~ include/linux/jump_label.h:416:41: note: in expansion of macro 'likely' 416 | #define static_branch_likely(x) likely(static_key_enabled(&(x)->key)) | ^~~~~~ include/linux/cgroup.h:92:9: note: in expansion of macro 'static_branch_likely' 92 | static_branch_likely(&ss ## _on_dfl_key) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6738:21: note: in expansion of macro 'cgroup_subsys_on_dfl' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:61:31: warning: ignoring attribute 'section ("_ftrace_branch")' because it conflicts with previous 'section ("_ftrace_annotated_branch")' [-Wattributes] 61 | static struct ftrace_branch_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:49: note: in definition of macro '__trace_if' 58 | if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ | ^~~~ kernel/sched/core.c:6738:17: note: in expansion of macro 'if' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~ include/linux/compiler.h:45:26: note: in expansion of macro '__branch_check__' 45 | # define likely(x) (__branch_check__(x, 1, __builtin_constant_p(x))) | ^~~~~~~~~~~~~~~~ include/linux/jump_label.h:416:41: note: in expansion of macro 'likely' 416 | #define static_branch_likely(x) likely(static_key_enabled(&(x)->key)) | ^~~~~~ include/linux/compiler.h:56:23: note: in expansion of macro '__trace_if' 56 | #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) | ^~~~~~~~~~ include/linux/jump_label.h:325:9: note: in expansion of macro 'if' 325 | if (!__builtin_types_compatible_p(typeof(*x), struct static_key) && \ | ^~ include/linux/jump_label.h:416:48: note: in expansion of macro 'static_key_enabled' 416 | #define static_branch_likely(x) likely(static_key_enabled(&(x)->key)) | ^~~~~~~~~~~~~~~~~~ include/linux/cgroup.h:92:9: note: in expansion of macro 'static_branch_likely' 92 | static_branch_likely(&ss ## _on_dfl_key) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6738:21: note: in expansion of macro 'cgroup_subsys_on_dfl' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:28:33: note: previous declaration here 28 | ______f = { \ | ^~~~~~~ include/linux/compiler.h:58:49: note: in definition of macro '__trace_if' 58 | if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ | ^~~~ kernel/sched/core.c:6738:17: note: in expansion of macro 'if' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~ include/linux/compiler.h:45:26: note: in expansion of macro '__branch_check__' 45 | # define likely(x) (__branch_check__(x, 1, __builtin_constant_p(x))) | ^~~~~~~~~~~~~~~~ include/linux/jump_label.h:416:41: note: in expansion of macro 'likely' 416 | #define static_branch_likely(x) likely(static_key_enabled(&(x)->key)) | ^~~~~~ include/linux/cgroup.h:92:9: note: in expansion of macro 'static_branch_likely' 92 | static_branch_likely(&ss ## _on_dfl_key) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6738:21: note: in expansion of macro 'cgroup_subsys_on_dfl' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:25:39: warning: ignoring attribute 'section ("_ftrace_annotated_branch")' because it conflicts with previous 'section ("_ftrace_branch")' [-Wattributes] 25 | static struct ftrace_likely_data \ | ^~~~~~~~~~~~~~~~~~ include/linux/compiler.h:69:30: note: in definition of macro '__trace_if' 69 | ______r = !!(cond); \ | ^~~~ kernel/sched/core.c:6738:17: note: in expansion of macro 'if' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~ include/linux/compiler.h:45:26: note: in expansion of macro '__branch_check__' 45 | # define likely(x) (__branch_check__(x, 1, __builtin_constant_p(x))) | ^~~~~~~~~~~~~~~~ include/linux/jump_label.h:416:41: note: in expansion of macro 'likely' 416 | #define static_branch_likely(x) likely(static_key_enabled(&(x)->key)) | ^~~~~~ include/linux/cgroup.h:92:9: note: in expansion of macro 'static_branch_likely' 92 | static_branch_likely(&ss ## _on_dfl_key) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6738:21: note: in expansion of macro 'cgroup_subsys_on_dfl' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:64:25: note: previous declaration here 64 | ______f = { \ | ^~~~~~~ include/linux/compiler.h:56:23: note: in expansion of macro '__trace_if' 56 | #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) | ^~~~~~~~~~ kernel/sched/core.c:6738:17: note: in expansion of macro 'if' 6738 | if (cgroup_subsys_on_dfl(cpu_cgrp_subsys)) { | ^~ >> kernel/sched/.tmp_core.o: warning: objtool: missing symbol for section .text.unlikely -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6] BUILD SUCCESS a5a8e9f7739dc1dee98615ccb7bc674aee2affa4
by kernel test robot 11 Feb '25

11 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: a5a8e9f7739dc1dee98615ccb7bc674aee2affa4 !15048 net: hns3: add sync command to sync io-pgtable Unverified Warning (likely false positive, kindly check if interested): mm/kasan/kasan_test.c:1155 rcu_uaf_reclaim() warn: statement has no effect 8 mm/kasan/kasan_test.c:1201 workqueue_uaf() warn: statement has no effect 8 Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- arm64-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-ARM64_ERRATUM_845719-when-selected-by-ARCH_MXC | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_KEY_PARSER-when-selected-by-PGP_PRELOAD | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_PRELOAD-when-selected-by-PGP_PRELOAD_PUBLIC_KEYS | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-RESCTRL_FS-when-selected-by-ARM64_MPAM | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- arm64-randconfig-001-20250210 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- arm64-randconfig-002-20250210 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- arm64-randconfig-003-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- arm64-randconfig-004-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-allmodconfig | |-- include-trace-stages-init.h:warning:str__bonding__trace_system_name-defined-but-not-used | |-- include-trace-stages-init.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_KEY_PARSER-when-selected-by-PGP_PRELOAD | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_PRELOAD-when-selected-by-PGP_PRELOAD_PUBLIC_KEYS | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-allyesconfig | |-- include-trace-stages-init.h:warning:str__bonding__trace_system_name-defined-but-not-used | |-- include-trace-stages-init.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-randconfig-002-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- x86_64-allnoconfig | |-- include-linux-sched-signal.h:linux-kabi.h-is-included-more-than-once. | |-- include-net-tcp.h:linux-kabi.h-is-included-more-than-once. | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_KEY_PARSER-when-selected-by-PGP_PRELOAD | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PGP_PRELOAD-when-selected-by-PGP_PRELOAD_PUBLIC_KEYS | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-allyesconfig | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-001-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-002-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | |-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags | `-- mm-memcontrol.c:warning:mem_cgroup_check_swap_for_v1-defined-but-not-used |-- x86_64-buildonly-randconfig-003-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-004-20250210 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-005-20250210 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-006-20250210 | |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- x86_64-defconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags `-- x86_64-randconfig-161-20250210 |-- mm-kasan-kasan_test.c-rcu_uaf_reclaim()-warn:statement-has-no-effect |-- mm-kasan-kasan_test.c-workqueue_uaf()-warn:statement-has-no-effect |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags elapsed time: 725m configs tested: 19 configs skipped: 111 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 randconfig-001-20250210 gcc-14.2.0 arm64 randconfig-002-20250210 clang-21 arm64 randconfig-003-20250210 clang-21 arm64 randconfig-004-20250210 gcc-14.2.0 loongarch allmodconfig gcc-14.2.0 loongarch allnoconfig gcc-14.2.0 loongarch randconfig-001-20250210 gcc-14.2.0 loongarch randconfig-002-20250210 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250210 clang-19 x86_64 buildonly-randconfig-002-20250210 gcc-12 x86_64 buildonly-randconfig-003-20250210 clang-19 x86_64 buildonly-randconfig-004-20250210 clang-19 x86_64 buildonly-randconfig-005-20250210 clang-19 x86_64 buildonly-randconfig-006-20250210 clang-19 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10] BUILD REGRESSION d0165578d0df9962ea30fbabcf76cf41f8789d27
by kernel test robot 11 Feb '25

11 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: d0165578d0df9962ea30fbabcf76cf41f8789d27 !15051 iio: light: vcnl4035: fix information leak in triggered buffer Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202502102259.fAt19b0s-lkp@intel.com arch/x86/kernel/cpu/resctrl/rdtgroup.c:1504:6: warning: variable 'h' set but not used [-Wunused-but-set-variable] Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | |-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-BPF_NET_GLOBAL_PROG-when-selected-by-SCHED_TASK_RELATIONSHIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-DRM_PANEL_BRIDGE-when-selected-by-DRM_TOSHIBA_TC358762 | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PCI_IOV-when-selected-by-CRYPTO_DEV_HISI_MIGRATION | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SERIAL_EARLYCON-when-selected-by-SERIAL_IMX_EARLYCON | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SND_SOC_DMIC-when-selected-by-SND_SOC_INTEL_DA7219_MAX98357A_GENERIC | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SND_SOC_DMIC-when-selected-by-SND_SOC_STM32_DFSDM | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-TASK_PLACEMENT_BY_CPU_RANGE-when-selected-by-BPF_SCHED | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- arm64-randconfig-001-20250210 | |-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- arm64-randconfig-004-20250210 | |-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- include-linux-minmax.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- x86_64-allnoconfig | |-- include-linux-backing-dev.h:warning:declaration-of-struct-cgroup_subsys-will-not-be-visible-outside-of-this-function | |-- include-linux-blk_types.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-cred.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-device-class.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-device.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-ioport.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-mm.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-swap.h:linux-kabi.h-is-included-more-than-once. | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-allyesconfig | |-- arch-x86-kernel-cpu-resctrl-rdtgroup.c:warning:variable-h-set-but-not-used | |-- crypto-asymmetric_keys-pgp_library.c:warning:Excess-function-parameter-_data-description-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Excess-function-parameter-_datalen-description-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Function-parameter-or-member-data-not-described-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Function-parameter-or-member-datalen-not-described-in-pgp_parse_packets | |-- mm-damon-core-test.h:warning:comparison-of-distinct-pointer-types-(-typeof-(__left)-(aka-unsigned-int-)-and-typeof-(__right)-(aka-int-)) | |-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | `-- mm-mem_reliable.c:warning:arithmetic-between-different-enumeration-types-(-enum-node_stat_item-and-enum-lru_list-) |-- x86_64-buildonly-randconfig-001-20250210 | |-- kernel-time-posix-cpu-timers.o:warning:objtool:run_posix_cpu_timers:unreachable-instruction | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-buildonly-randconfig-002-20250210 | |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used | |-- include-linux-minmax.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- x86_64-buildonly-randconfig-003-20250210 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used |-- x86_64-buildonly-randconfig-004-20250210 | |-- include-linux-backing-dev.h:warning:declaration-of-struct-cgroup_subsys-will-not-be-visible-outside-of-this-function | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used |-- x86_64-buildonly-randconfig-005-20250210 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-buildonly-randconfig-006-20250210 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used |-- x86_64-defconfig | |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page `-- x86_64-randconfig-161-20250210 |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page elapsed time: 727m configs tested: 15 configs skipped: 118 tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 randconfig-001-20250210 gcc-14.2.0 arm64 randconfig-002-20250210 clang-21 arm64 randconfig-003-20250210 clang-21 arm64 randconfig-004-20250210 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250210 clang-19 x86_64 buildonly-randconfig-002-20250210 gcc-12 x86_64 buildonly-randconfig-003-20250210 clang-19 x86_64 buildonly-randconfig-004-20250210 clang-19 x86_64 buildonly-randconfig-005-20250210 clang-19 x86_64 buildonly-randconfig-006-20250210 clang-19 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS] BUILD REGRESSION e7e24815dc35fd89241933daa8733b46f157ec60
by kernel test robot 10 Feb '25

10 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: e7e24815dc35fd89241933daa8733b46f157ec60 !15030 nbd: don't allow reconnect after disconnect Error/Warning (recently discovered and may have been fixed): kernel/locking/.tmp_mutex.o: warning: objtool: missing symbol for section .sched.text Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | |-- include-asm-generic-bitops-non-atomic.h:warning:array-subscript-long-unsigned-int-is-partly-outside-array-bounds-of-u32-aka-unsigned-int | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-linux-thread_info.h:warning:b-may-be-used-uninitialized | |-- include-net-netns-generic.h:warning:array-subscript-id-is-outside-array-bounds-of-void | |-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized | |-- mm-kasan-kasan_init.c:warning:variable-p4d-set-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:array-subscript-nid-is-outside-array-bounds-of-struct-mem_cgroup_per_node | `-- mm-memcontrol.c:warning:bad-line:otherwise. |-- arm64-allnoconfig | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_AES-when-selected-by-RTLLIB_CRYPTO_CCMP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_ARC4-when-selected-by-RTLLIB_CRYPTO_TKIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_ARC4-when-selected-by-RTLLIB_CRYPTO_WEP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_MICHAEL_MIC-when-selected-by-RTLLIB_CRYPTO_TKIP | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-FB_BACKLIGHT-when-selected-by-DRM_NOUVEAU | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-HARDLOCKUP_DETECTOR-when-selected-by-SDEI_WATCHDOG | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-IIO_BUFFER_CB-when-selected-by-TOUCHSCREEN_ADC | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-PINCTRL_EXYNOS-when-selected-by-ARCH_EXYNOS | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SPI_PHYTIUM-when-selected-by-SPI_PHYTIUM_PCI | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SPI_PHYTIUM-when-selected-by-SPI_PHYTIUM_PLAT | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-UACCE-when-selected-by-CRYPTO_DEV_HISI_QM | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-defconfig | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-net-netns-generic.h:warning:array-subscript-id-is-outside-array-bounds-of-void | |-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:array-subscript-nid-is-outside-array-bounds-of-struct-mem_cgroup_per_node | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free |-- arm64-randconfig-001-20250210 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-net-netns-generic.h:warning:array-subscript-id-is-outside-array-bounds-of-void | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-002-20250210 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-net-netns-generic.h:warning:array-subscript-id-is-outside-array-bounds-of-void | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-003-20250210 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-004-20250210 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-kasan-kasan_init.c:warning:variable-p4d-set-but-not-used | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- x86_64-allmodconfig | `-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests |-- x86_64-allnoconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- mm-hugetlb.c:linux-share_pool.h-is-included-more-than-once. | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-allyesconfig | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-.tmp_ioremap.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | `-- mm-memcontrol.c:warning:bad-line:otherwise. |-- x86_64-buildonly-randconfig-001-20250210 | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | `-- mm-.tmp_ioremap.o:warning:objtool:missing-symbol-for-section-.text |-- x86_64-buildonly-randconfig-002-20250210 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- mm-.tmp_ioremap.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- x86_64-buildonly-randconfig-003-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- crypto-sm4_generic.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- drivers-watchdog-menz69_wdt.o:warning:objtool:missing-symbol-for-section-.init.text | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-004-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- crypto-sm4_generic.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-005-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-006-20250210 | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- kernel-locking-.tmp_mutex.o:warning:objtool:missing-symbol-for-section-.sched.text | |-- mm-.tmp_ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool |-- x86_64-defconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- mm-hugetlb.c:warning:no-previous-prototype-for-free_huge_page_to_dhugetlb_pool | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read |-- x86_64-randconfig-101-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | `-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read |-- x86_64-randconfig-102-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- x86_64-randconfig-103-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- x86_64-randconfig-104-20250210 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled `-- x86_64-randconfig-161-20250210 |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_shmem |-- mm-maccess.c:warning:no-previous-prototype-for-__probe_user_read |-- mm-memcontrol.c:warning:bad-line:otherwise. `-- mm-memcontrol.c:warning:no-previous-prototype-for-dhugetlb_pool_is_free elapsed time: 723m configs tested: 16 configs skipped: 128 tested configs: arm64 allmodconfig gcc-14.2.0 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250210 gcc-14.2.0 arm64 randconfig-002-20250210 gcc-14.2.0 arm64 randconfig-003-20250210 gcc-14.2.0 arm64 randconfig-004-20250210 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250210 clang-19 x86_64 buildonly-randconfig-002-20250210 gcc-12 x86_64 buildonly-randconfig-003-20250210 clang-19 x86_64 buildonly-randconfig-004-20250210 clang-19 x86_64 buildonly-randconfig-005-20250210 clang-19 x86_64 buildonly-randconfig-006-20250210 clang-19 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2735/2735] arch/x86/kernel/cpu/resctrl/rdtgroup.c:1504:6: warning: variable 'h' set but not used
by kernel test robot 10 Feb '25

10 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: d0165578d0df9962ea30fbabcf76cf41f8789d27 commit: 540e1ae2f7aca5a427a52f12bef657b1e3e81fc1 [2735/2735] x86/resctrl: Add interface to read mbm_total_bytes_config config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250210/202502102259.fAt19b0s-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250210/202502102259.fAt19b0s-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502102259.fAt19b0s-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kernel/cpu/resctrl/rdtgroup.c:19: In file included from include/linux/fs_parser.h:11: In file included from include/linux/fs_context.h:14: In file included from include/linux/security.h:33: In file included from include/linux/mm.h:1587: include/linux/vmstat.h:417:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 417 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 418 | item]; | ~~~~ include/linux/vmstat.h:424:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 424 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 425 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:436:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 436 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 437 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:445:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 445 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 446 | NR_VM_NUMA_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ >> arch/x86/kernel/cpu/resctrl/rdtgroup.c:1504:6: warning: variable 'h' set but not used [-Wunused-but-set-variable] 1504 | u32 h; | ^ 6 warnings generated. vim +/h +1504 arch/x86/kernel/cpu/resctrl/rdtgroup.c 1499 1500 static void mon_event_config_read(void *info) 1501 { 1502 struct mon_config_info *mon_info = info; 1503 unsigned int index; > 1504 u32 h; 1505 1506 index = mon_event_config_index_get(mon_info->evtid); 1507 if (index == INVALID_CONFIG_INDEX) { 1508 pr_warn_once("Invalid event id %d\n", mon_info->evtid); 1509 return; 1510 } 1511 rdmsr(MSR_IA32_EVT_CFG_BASE + index, mon_info->mon_config, h); 1512 1513 /* Report only the valid event configuration bits */ 1514 mon_info->mon_config &= MAX_EVT_CONFIG_BITS; 1515 } 1516 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] RDMA/hns: Fix free_mr_qp not assigning qp->device in error flow
by Chengchang Tang 10 Feb '25

10 Feb '25

From: Junxian Huang <huangjunxian6(a)hisilicon.com> driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBLA1C --------------------------------------------------------------- For HIP08, the driver creates 8 free_mr_qp in free_mr_alloc_res(), and then assigns qp->device for them in free_mr_modify_rsv_qp(). When an error occurs during this process, qp->device of some free_mr_qp may not get assigned yet. When the driver enters the error flow and destroys these free_mr_qp, it will obtain hr_dev by qp->device, and this will lead to the panic below: Unable to handle kernel paging request at virtual address 0000000000001198 ... Call trace: hns_roce_v2_destroy_qp_common+0x18c/0x5f4 [hns_roce_hw_v2] hns_roce_v2_destroy_qp+0x254/0x490 [hns_roce_hw_v2] free_mr_exit+0x6c/0x120 [hns_roce_hw_v2] free_mr_init+0xcc/0xf0 [hns_roce_hw_v2] __hns_roce_hw_v2_init_instance+0x180/0x304 [hns_roce_hw_v2] hns_roce_hw_v2_reset_notify_init+0x170/0x21c [hns_roce_hw_v2] hns_roce_hw_v2_reset_notify+0x6c/0x1a0 [hns_roce_hw_v2] hclge_notify_roce_client+0x6c/0x160 [hclge] hclge_reset_rebuild+0x150/0x5c0 [hclge] hclge_reset+0x10c/0x140 [hclge] hclge_reset_subtask+0x80/0x104 [hclge] hclge_reset_service_task+0x168/0x3ac [hclge] hclge_service_task+0xb4/0x100 [hclge] Fixes: e89e2d3b692b ("RDMA/hns: Fix gid idx issue caused by free mr") Fixes: 6f5f556d3795 ("RDMA/hns: Use the reserved loopback QPs to free MR before destroying MPT") Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Signed-off-by: Xinghai Cen <cenxinghai(a)h-partners.com> --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 9607f2eb45b7..5a7539f8c14d 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3055,6 +3055,8 @@ static struct hns_roce_qp *create_free_mr_qp(struct hns_roce_dev *hr_dev, ibdev_err(ibdev, "failed to create qp for free mr.\n"); return NULL; } + qp->device = ibdev; + qp->qp_type = IB_QPT_RC; return to_hr_qp(qp); } @@ -3138,8 +3140,6 @@ static int free_mr_modify_rsv_qp(struct hns_roce_dev *hr_dev, hr_qp = to_hr_qp(&free_mr->rsv_qp[sl_num]->ibqp); hr_qp->free_mr_en = 1; - hr_qp->ibqp.device = ibdev; - hr_qp->ibqp.qp_type = IB_QPT_RC; mask = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_ACCESS_FLAGS; attr->qp_state = IB_QPS_INIT; -- 2.33.0

2 3

[PATCH openEuler-1.0-LTS] net: let net.core.dev_weight always be non-zero
by Liu Jian 10 Feb '25

10 Feb '25

mainline inclusion from mainline-v6.14-rc1 commit d1f9f79fa2af8e3b45cffdeef66e05833480148a category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBIFI3 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------- The following problem was encountered during stability test: (NULL net_device): NAPI poll function process_backlog+0x0/0x530 \ returned 1, exceeding its budget of 0. ------------[ cut here ]------------ list_add double add: new=ffff88905f746f48, prev=ffff88905f746f48, \ next=ffff88905f746e40. WARNING: CPU: 18 PID: 5462 at lib/list_debug.c:35 \ __list_add_valid_or_report+0xf3/0x130 CPU: 18 UID: 0 PID: 5462 Comm: ping Kdump: loaded Not tainted 6.13.0-rc7+ RIP: 0010:__list_add_valid_or_report+0xf3/0x130 Call Trace: ? __warn+0xcd/0x250 ? __list_add_valid_or_report+0xf3/0x130 enqueue_to_backlog+0x923/0x1070 netif_rx_internal+0x92/0x2b0 __netif_rx+0x15/0x170 loopback_xmit+0x2ef/0x450 dev_hard_start_xmit+0x103/0x490 __dev_queue_xmit+0xeac/0x1950 ip_finish_output2+0x6cc/0x1620 ip_output+0x161/0x270 ip_push_pending_frames+0x155/0x1a0 raw_sendmsg+0xe13/0x1550 __sys_sendto+0x3bf/0x4e0 __x64_sys_sendto+0xdc/0x1b0 do_syscall_64+0x5b/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e The reproduction command is as follows: sysctl -w net.core.dev_weight=0 ping 127.0.0.1 This is because when the napi's weight is set to 0, process_backlog() may return 0 and clear the NAPI_STATE_SCHED bit of napi->state, causing this napi to be re-polled in net_rx_action() until __do_softirq() times out. Since the NAPI_STATE_SCHED bit has been cleared, napi_schedule_rps() can be retriggered in enqueue_to_backlog(), causing this issue. Making the napi's weight always non-zero solves this problem. Triggering this issue requires system-wide admin (setting is not namespaced). Fixes: e38766054509 ("[NET]: Fix sysctl net.core.dev_weight") Fixes: 3d48b53fb2ae ("net: dev_weight: TX/RX orthogonality") Signed-off-by: Liu Jian <liujian56(a)huawei.com> Link: https://patch.msgid.link/20250116143053.4146855-1-liujian56@huawei.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Conflicts: net/core/sysctl_net_core.c [Did not backport eec4844fae7c.] Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/core/sysctl_net_core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 79164fc37359..43f4d4080864 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -235,7 +235,7 @@ static int proc_do_dev_weight(struct ctl_table *table, int write, int ret, weight; mutex_lock(&dev_weight_mutex); - ret = proc_dointvec(table, write, buffer, lenp, ppos); + ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos); if (!ret && write) { weight = READ_ONCE(weight_p); WRITE_ONCE(dev_rx_weight, weight * dev_weight_rx_bias); @@ -349,6 +349,7 @@ static struct ctl_table net_core_table[] = { .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_do_dev_weight, + .extra1 = &one, }, { .procname = "dev_weight_rx_bias", @@ -356,6 +357,7 @@ static struct ctl_table net_core_table[] = { .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_do_dev_weight, + .extra1 = &one, }, { .procname = "dev_weight_tx_bias", @@ -363,6 +365,7 @@ static struct ctl_table net_core_table[] = { .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_do_dev_weight, + .extra1 = &one, }, { .procname = "netdev_max_backlog", -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] [Backport] : ext4: no need to continue when the number of entries is 1
by Yongjian Sun 10 Feb '25

10 Feb '25

From: Edward Adam Davis <eadavis(a)qq.com> mainline inclusion from mainline-v6.12-rc1 commit 1a00a393d6a7fb1e745a41edd09019bd6a0ad64c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAYRCB CVE: CVE-2024-49967 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Fixes: ac27a0ec112a ("[PATCH] ext4: initial copy of files from ext3") Reported-by: syzbot+ae688d469e36fb5138d0(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=ae688d469e36fb5138d0 Signed-off-by: Edward Adam Davis <eadavis(a)qq.com> Reported-and-tested-by: syzbot+ae688d469e36fb5138d0(a)syzkaller.appspotmail.com Link: https://patch.msgid.link/tencent_BE7AEE6C7C2D216CB8949CE8E6EE7ECC2C0A@qq.com Signed-off-by: Theodore Ts'o <tytso(a)mit.edu> Cc: stable(a)kernel.org Signed-off-by: Yongjian Sun <sunyongjian1(a)huawei.com> --- fs/ext4/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index f2208337e5cb..f034326988e4 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1820,7 +1820,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir, split = count/2; hash2 = map[split].hash; - continued = hash2 == map[split - 1].hash; + continued = split > 0 ? hash2 == map[split - 1].hash : 0; dxtrace(printk(KERN_INFO "Split block %lu at %x, %i/%i\n", (unsigned long)dx_get_block(frame->at), hash2, split, count-split)); -- 2.39.2

2 1

[openeuler:OLK-5.10 2734/2734] htmldocs: Warning: arch/x86/kernel/cpu/resctrl/monitor.c references a file that doesn't exist: Documentation/x86/resctrl.rst
by kernel test robot 10 Feb '25

10 Feb '25

Hi Fenghua, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 9534dcd94e7f28129d5a3db85ebaf7bd9e1136c6 commit: a6c0245e15d65203dbe3b21d47e8618b4444bf27 [2734/2734] x86/resctrl: Correct MBM total and local values reproduce: (https://download.01.org/0day-ci/archive/20250210/202502101814.m8lSF3rK-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502101814.m8lSF3rK-lkp@intel.com/ All warnings (new ones prefixed by >>): Warning: MAINTAINERS references a file that doesn't exist: Documentation/x86/amd_hsmp.rst Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/pinctrl/toshiba,tmpv7700-pinctrl.yaml Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.yaml Warning: arch/Kconfig references a file that doesn't exist: Documentation/unaligned-memory-access.txt Warning: arch/riscv/kvm/vcpu.c references a file that doesn't exist: Documentation/virtual/kvm/vcpu-requests.rst >> Warning: arch/x86/kernel/cpu/resctrl/monitor.c references a file that doesn't exist: Documentation/x86/resctrl.rst Warning: crypto/asymmetric_keys/pgp_preload.c references a file that doesn't exist: Documentation/security/keys-crypto.txt Warning: drivers/irqchip/Kconfig references a file that doesn't exist: Documentation/loongarch/irq-chip-model.rst Warning: drivers/net/ethernet/yunsilicon/xsc/common/xsc_ioctl.h references a file that doesn't exist: Documentation/ioctl/ioctl-number.txt Warning: openEuler/MAINTAINERS references a file that doesn't exist: Documentation/networking/hinic3.rst Warning: /sys/bus/iio/devices/iio:deviceX/in_accel_x_calibbias is defined 2 times: ./Documentation/ABI/testing/sysfs-bus-iio:394 ./Documentation/ABI/testing/sysfs-bus-iio-icm42600:0 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6] iomap: avoid avoid truncating 64-bit offset to 32 bits
by Long Li 10 Feb '25

10 Feb '25

From: Marco Nelissen <marco.nelissen(a)gmail.com> mainline inclusion from mainline-v6.10-rc2 commit c13094b894de289514d84b8db56d1f2931a0bade category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBJXF0 CVE: CVE-2025-21667 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a 32-bit position due to folio_next_index() returning an unsigned long. This could lead to an infinite loop when writing to an xfs filesystem. Signed-off-by: Marco Nelissen <marco.nelissen(a)gmail.com> Link: https://lore.kernel.org/r/20250109041253.2494374-1-marco.nelissen@gmail.com Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Christian Brauner <brauner(a)kernel.org> Conflicts: fs/iomap/buffered-io.c [Conflicts due to not merged 492f53758fad ("iomap: pass the iomap to the punch callback")] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/iomap/buffered-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index ef8a8345ca9a..827a3ece86a1 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1221,7 +1221,7 @@ static int iomap_write_delalloc_scan(struct inode *inode, } /* move offset to start of next folio in range */ - start_byte = folio_next_index(folio) << PAGE_SHIFT; + start_byte = folio_pos(folio) + folio_size(folio); folio_unlock(folio); folio_put(folio); } -- 2.39.2

2 1

[PATCH OLK-5.10] iomap: avoid avoid truncating 64-bit offset to 32 bits
by Long Li 10 Feb '25

10 Feb '25

From: Marco Nelissen <marco.nelissen(a)gmail.com> mainline inclusion from mainline-v6.10-rc2 commit c13094b894de289514d84b8db56d1f2931a0bade category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBJXF0 CVE: CVE-2025-21667 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a 32-bit position due to folio_next_index() returning an unsigned long. This could lead to an infinite loop when writing to an xfs filesystem. Signed-off-by: Marco Nelissen <marco.nelissen(a)gmail.com> Link: https://lore.kernel.org/r/20250109041253.2494374-1-marco.nelissen@gmail.com Reviewed-by: Darrick J. Wong <djwong(a)kernel.org> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Christian Brauner <brauner(a)kernel.org> Conflicts: fs/xfs/xfs_iomap.c fs/iomap/buffered-io.c [Conflicts due to not merged 492f53758fad ("iomap: pass the iomap to the punch callback")] Signed-off-by: Long Li <leo.lilong(a)huawei.com> --- fs/xfs/xfs_iomap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index dc01689988ab..496d8950d5bf 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1195,7 +1195,7 @@ xfs_iomap_write_delalloc_scan( } /* move offset to start of next folio in range */ - start_byte = (page->index + 1) << PAGE_SHIFT; + start_byte = page_offset(page) + PAGE_SIZE; unlock_page(page); put_page(page); } -- 2.39.2

2 1

[PATCH OLK-5.10 00/14] try to backport "block: fix rq-qos breakage from skipping rq_qos_done_bio"
by Li Nan 10 Feb '25

10 Feb '25

Christoph Hellwig (9): [Backport] block: reuse BIO_INLINE_VECS for integrity bvecs [Backport] block: move struct biovec_slab to bio.c [Backport] block: factor out a bvec_alloc_gfp helper [Backport] block: streamline bvec_alloc [Backport] block: remove the 1 and 4 vec bvec_slabs entries [Backport] block: turn the nr_iovecs argument to bio_alloc* into an unsigned short [Backport] block: mark the bio as cloned in bio_iov_bvec_set [Backport] md/raid10: remove dead code in reshape_request [Backport] block: use bi_max_vecs to find the bvec pool Jens Axboe (2): [Backport] block: add a BUILD_BUG_ON() for adding more bio flags than we have space [Backport] block: only mark bio as tracked if it really is tracked Li Lingfeng (2): block: fix kabi broken block: fix kabi broken due to removing bip_slab Tejun Heo (1): [Backport] block: fix rq-qos breakage from skipping rq_qos_done_bio() block/blk-rq-qos.h | 23 +++-- block/blk.h | 1 + include/linux/bio.h | 13 +-- include/linux/blk_types.h | 32 +----- block/bio-integrity.c | 17 ++-- block/bio.c | 202 ++++++++++++++++---------------------- block/blk-iolatency.c | 2 +- drivers/md/raid10.c | 4 - 8 files changed, 110 insertions(+), 184 deletions(-) -- 2.39.2

2 15

[PATCH OLK-5.10] iio: light: vcnl4035: fix information leak in triggered buffer
by Huang Xiaojia 10 Feb '25

10 Feb '25

From: Javier Carrasco <javier.carrasco.cruz(a)gmail.com> mainline inclusion from mainline-v6.13-rc7 commit 47b43e53c0a0edf5578d5d12f5fc71c019649279 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBIQVN CVE: CVE-2024-57910 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The 'buffer' local array is used to push data to userspace from a triggered buffer, but it does not set an initial value for the single data element, which is an u16 aligned to 8 bytes. That leaves at least 4 bytes uninitialized even after writing an integer value with regmap_read(). Initialize the array to zero before using it to avoid pushing uninitialized information to userspace. Cc: stable(a)vger.kernel.org Fixes: ec90b52c07c0 ("iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()") Signed-off-by: Javier Carrasco <javier.carrasco.cruz(a)gmail.com> Link: https://patch.msgid.link/20241125-iio_memset_scan_holes-v1-6-0cb6e98d895c@g… Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Signed-off-by: Huang Xiaojia <huangxiaojia2(a)huawei.com> --- drivers/iio/light/vcnl4035.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c index 6e38a33f55c7..ce21c0fcd1c0 100644 --- a/drivers/iio/light/vcnl4035.c +++ b/drivers/iio/light/vcnl4035.c @@ -105,7 +105,7 @@ static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p) struct iio_dev *indio_dev = pf->indio_dev; struct vcnl4035_data *data = iio_priv(indio_dev); /* Ensure naturally aligned timestamp */ - u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)] __aligned(8); + u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)] __aligned(8) = { }; int ret; ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer); -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS] brd: fix AA deadlock for concurrent brd_probe()
by Yu Kuai 10 Feb '25

10 Feb '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBIWBN CVE: NA ---------------------------------------- For concurrent brd_probe(), the first one will create brd disk and set partition number to 0, however, the second one will found the brd disk and keep the partition number as disk fist minor. This will case AA deadlock for the caller because bdev is part0 while bdev->bd_partno is not zero. Fix the problem by always return NULL in brd_probe, hence brd_probe() will be covered by exact_match() from __device_add_disk(). Fixes: 937af5ecd059 ("brd: Fix all partitions BUGs") Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- drivers/block/brd.c | 23 +++++------------------ 1 file changed, 5 insertions(+), 18 deletions(-) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 02e8fff3f828..fc1abcf760ad 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -418,15 +418,13 @@ static void brd_free(struct brd_device *brd) kfree(brd); } -static struct brd_device *brd_init_one(int i, bool *new) +static void brd_init_one(int i) { struct brd_device *brd; - *new = false; - list_for_each_entry(brd, &brd_devices, brd_list) { + list_for_each_entry(brd, &brd_devices, brd_list) if (brd->brd_number == i) - goto out; - } + return; brd = brd_alloc(i); if (brd) { @@ -434,9 +432,6 @@ static struct brd_device *brd_init_one(int i, bool *new) add_disk(brd->brd_disk); list_add_tail(&brd->brd_list, &brd_devices); } - *new = true; -out: - return brd; } static void brd_del_one(struct brd_device *brd) @@ -448,19 +443,11 @@ static void brd_del_one(struct brd_device *brd) static struct kobject *brd_probe(dev_t dev, int *part, void *data) { - struct brd_device *brd; - struct kobject *kobj; - bool new; - mutex_lock(&brd_devices_mutex); - brd = brd_init_one(MINOR(dev) / max_part, &new); - kobj = brd ? get_disk_and_module(brd->brd_disk) : NULL; + brd_init_one(MINOR(dev) / max_part); mutex_unlock(&brd_devices_mutex); - if (new) - *part = 0; - - return kobj; + return NULL; } static inline void brd_check_and_reset_par(void) -- 2.39.2

2 1

[openeuler:openEuler-1.0-LTS 1420/1420] mm/page_alloc.c:3684:54: sparse: sparse: incorrect type in argument 1 (different base types)
by kernel test robot 10 Feb '25

10 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 9b6c51cd780588813c5d327e2a6d677d010a2b6f [1420/1420] mm: fix zoneref mapping problem in memory reliable config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250210/202502100112.IwK7UXyM-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250210/202502100112.IwK7UXyM-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502100112.IwK7UXyM-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/page_alloc.c:140:1: sparse: sparse: symbol 'pcpu_drain_mutex' was not declared. Should it be static? mm/page_alloc.c:141:1: sparse: sparse: symbol '__pcpu_scope_pcpu_drain' was not declared. Should it be static? mm/page_alloc.c: note: in included file (through include/linux/mm.h): include/linux/mem_reliable.h:68:15: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:4656:13: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:4661:35: sparse: sparse: invalid assignment: |= mm/page_alloc.c:4661:35: sparse: left side has type restricted gfp_t mm/page_alloc.c:4661:35: sparse: right side has type unsigned int mm/page_alloc.c:4677:35: sparse: sparse: invalid assignment: |= mm/page_alloc.c:4677:35: sparse: left side has type restricted gfp_t mm/page_alloc.c:4677:35: sparse: right side has type unsigned int mm/page_alloc.c:4683:35: sparse: sparse: invalid assignment: |= mm/page_alloc.c:4683:35: sparse: left side has type restricted gfp_t mm/page_alloc.c:4683:35: sparse: right side has type unsigned int mm/page_alloc.c:4698:35: sparse: sparse: invalid assignment: |= mm/page_alloc.c:4698:35: sparse: left side has type restricted gfp_t mm/page_alloc.c:4698:35: sparse: right side has type unsigned int mm/page_alloc.c: note: in included file (through include/linux/mm.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:324:27: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:324:27: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:3683:14: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:3684:45: sparse: sparse: restricted gfp_t degrades to integer >> mm/page_alloc.c:3684:54: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted gfp_t [usertype] flags @@ got unsigned int @@ mm/page_alloc.c:3684:54: sparse: expected restricted gfp_t [usertype] flags mm/page_alloc.c:3684:54: sparse: got unsigned int include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:3701:14: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c: In function 'mem_init_print_info': mm/page_alloc.c:7512:27: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 36- | ^~ mm/page_alloc.c:7516:9: note: in expansion of macro 'adj_init_size' 7516 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: note: use '&__init_begin[0] <= &_sinittext[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 42- | ^~ mm/page_alloc.c:7516:9: note: in expansion of macro 'adj_init_size' 7516 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 48- | ^ mm/page_alloc.c:7516:9: note: in expansion of macro 'adj_init_size' 7516 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: note: use '&_sinittext[0] < &__init_end[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 54- | ^ mm/page_alloc.c:7516:9: note: in expansion of macro 'adj_init_size' 7516 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 60- | ^~ mm/page_alloc.c:7518:9: note: in expansion of macro 'adj_init_size' 7518 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: note: use '&_stext[0] <= &_sinittext[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 66- | ^~ mm/page_alloc.c:7518:9: note: in expansion of macro 'adj_init_size' 7518 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 72- | ^ mm/page_alloc.c:7518:9: note: in expansion of macro 'adj_init_size' 7518 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: note: use '&_sinittext[0] < &_etext[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 78- | ^ mm/page_alloc.c:7518:9: note: in expansion of macro 'adj_init_size' 7518 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 84- | ^~ mm/page_alloc.c:7519:9: note: in expansion of macro 'adj_init_size' 7519 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: note: use '&_sdata[0] <= &__init_begin[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 90- | ^~ mm/page_alloc.c:7519:9: note: in expansion of macro 'adj_init_size' 7519 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 96- | ^ mm/page_alloc.c:7519:9: note: in expansion of macro 'adj_init_size' 7519 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: note: use '&__init_begin[0] < &_edata[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 102- | ^ mm/page_alloc.c:7519:9: note: in expansion of macro 'adj_init_size' 7519 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 108- | ^~ mm/page_alloc.c:7520:9: note: in expansion of macro 'adj_init_size' 7520 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:27: note: use '&_stext[0] <= &__start_rodata[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 114- | ^~ mm/page_alloc.c:7520:9: note: in expansion of macro 'adj_init_size' 7520 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: warning: comparison between two arrays [-Warray-compare] 7512 | if (start <= pos && pos < end && size > adj) 120- | ^ mm/page_alloc.c:7520:9: note: in expansion of macro 'adj_init_size' 7520 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); | ^~~~~~~~~~~~~ mm/page_alloc.c:7512:41: note: use '&__start_rodata[0] < &_etext[0]' to compare the addresses 7512 | if (start <= pos && pos < end && size > adj) 126- | ^ vim +3684 mm/page_alloc.c 3673 3674 #ifdef CONFIG_MEMORY_RELIABLE 3675 static inline void reliable_fb_find_zone(gfp_t gfp_mask, 3676 struct alloc_context *ac) 3677 { 3678 if (!reliable_allow_fb_enabled()) 3679 return; 3680 3681 /* dst node don't have zone we want, fallback here */ 3682 if ((gfp_mask & __GFP_THISNODE) && (ac->high_zoneidx == ZONE_NORMAL) && 3683 (gfp_mask & ___GFP_RELIABILITY)) { > 3684 ac->high_zoneidx = gfp_zone(gfp_mask & ~___GFP_RELIABILITY); 3685 ac->preferred_zoneref = first_zones_zonelist( 3686 ac->zonelist, ac->high_zoneidx, ac->nodemask); 3687 } 3688 3689 return; 3690 } 3691 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1420/1420] mm/mem_reliable.c:401:5: sparse: sparse: symbol 'reliable_pagecache_max_bytes_write' was not declared. Should it be static?
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 6943b93b464351cbc35aa002e86bac48e08b1c3f [1420/1420] mm: add support for limiting the usage of reliable memory in pagecache config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502092339.Fe6S9ctM-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502092339.Fe6S9ctM-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502092339.Fe6S9ctM-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/mem_reliable.c:39:1: sparse: sparse: symbol '__pcpu_scope_pagecache_reliable_pages' was not declared. Should it be static? mm/mem_reliable.c:67:14: sparse: sparse: restricted gfp_t degrades to integer mm/mem_reliable.c:250:5: sparse: sparse: symbol 'reliable_limit_handler' was not declared. Should it be static? mm/mem_reliable.c:323:5: sparse: sparse: symbol 'reliable_debug_handler' was not declared. Should it be static? mm/mem_reliable.c:356:5: sparse: sparse: symbol 'reliable_reserve_size_handler' was not declared. Should it be static? mm/mem_reliable.c:380:5: sparse: sparse: symbol 'reliable_shmem_bytes_limit_handler' was not declared. Should it be static? >> mm/mem_reliable.c:401:5: sparse: sparse: symbol 'reliable_pagecache_max_bytes_write' was not declared. Should it be static? >> mm/mem_reliable.c:487:14: sparse: sparse: invalid assignment: |= mm/mem_reliable.c:487:14: sparse: left side has type restricted gfp_t mm/mem_reliable.c:487:14: sparse: right side has type unsigned int mm/mem_reliable.c:491:14: sparse: sparse: invalid assignment: &= mm/mem_reliable.c:491:14: sparse: left side has type restricted gfp_t mm/mem_reliable.c:491:14: sparse: right side has type unsigned int mm/mem_reliable.c:250:5: warning: no previous prototype for 'reliable_limit_handler' [-Wmissing-prototypes] 250 | int reliable_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:323:5: warning: no previous prototype for 'reliable_debug_handler' [-Wmissing-prototypes] 323 | int reliable_debug_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:356:5: warning: no previous prototype for 'reliable_reserve_size_handler' [-Wmissing-prototypes] 356 | int reliable_reserve_size_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:380:5: warning: no previous prototype for 'reliable_shmem_bytes_limit_handler' [-Wmissing-prototypes] 380 | int reliable_shmem_bytes_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:401:5: warning: no previous prototype for 'reliable_pagecache_max_bytes_write' [-Wmissing-prototypes] 401 | int reliable_pagecache_max_bytes_write(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/reliable_pagecache_max_bytes_write +401 mm/mem_reliable.c 400 > 401 int reliable_pagecache_max_bytes_write(struct ctl_table *table, int write, 402 void __user *buffer, size_t *length, loff_t *ppos) 403 { 404 unsigned long old_value = reliable_pagecache_max_bytes; 405 int ret; 406 407 ret = proc_doulongvec_minmax(table, write, buffer, length, ppos); 408 if (!ret && write) { 409 if (reliable_pagecache_max_bytes > total_reliable_mem_sz()) { 410 reliable_pagecache_max_bytes = old_value; 411 return -EINVAL; 412 } 413 } 414 415 return ret; 416 } 417 418 static struct ctl_table reliable_ctl_table[] = { 419 { 420 .procname = "task_reliable_limit", 421 .data = &task_reliable_limit, 422 .maxlen = sizeof(task_reliable_limit), 423 .mode = 0644, 424 .proc_handler = reliable_limit_handler, 425 }, 426 { 427 .procname = "reliable_debug", 428 .data = &mem_reliable_ctrl_bits, 429 .maxlen = sizeof(mem_reliable_ctrl_bits), 430 .mode = 0600, 431 .proc_handler = reliable_debug_handler, 432 }, 433 { 434 .procname = "reliable_reserve_size", 435 .data = &sysctl_reliable_reserve_size, 436 .maxlen = sizeof(sysctl_reliable_reserve_size), 437 .mode = 0644, 438 .proc_handler = reliable_reserve_size_handler, 439 }, 440 #ifdef CONFIG_SHMEM 441 { 442 .procname = "shmem_reliable_bytes_limit", 443 .data = &sysctl_shmem_reliable_bytes_limit, 444 .maxlen = sizeof(sysctl_shmem_reliable_bytes_limit), 445 .mode = 0644, 446 .proc_handler = reliable_shmem_bytes_limit_handler, 447 }, 448 #endif 449 { 450 .procname = "reliable_pagecache_max_bytes", 451 .data = &reliable_pagecache_max_bytes, 452 .maxlen = sizeof(reliable_pagecache_max_bytes), 453 .mode = 0644, 454 .proc_handler = reliable_pagecache_max_bytes_write, 455 .extra1 = &zero, 456 }, 457 {} 458 }; 459 460 static struct ctl_table reliable_dir_table[] = { 461 { 462 .procname = "vm", 463 .maxlen = 0, 464 .mode = 0555, 465 .child = reliable_ctl_table, 466 }, 467 {} 468 }; 469 470 void page_cache_prepare_alloc(gfp_t *gfp) 471 { 472 long nr_reliable = 0; 473 int cpu; 474 475 if (!mem_reliable_is_enabled()) 476 return; 477 478 for_each_possible_cpu(cpu) 479 nr_reliable += this_cpu_read(pagecache_reliable_pages); 480 481 if (nr_reliable < 0) 482 goto no_reliable; 483 484 if (nr_reliable > reliable_pagecache_max_bytes >> PAGE_SHIFT) 485 goto no_reliable; 486 > 487 *gfp |= ___GFP_RELIABILITY; 488 return; 489 490 no_reliable: 491 *gfp &= ~___GFP_RELIABILITY; 492 } 493 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1420/1420] mm/mem_reliable.c:349:5: sparse: sparse: symbol 'reliable_shmem_bytes_limit_handler' was not declared. Should it be static?
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 7a36955e5c8808a4b45d826a127e136c97f2a6f8 [1420/1420] mm: Introduce shmem mirrored memory limit for memory reliable config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502092233.9edRdxQm-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502092233.9edRdxQm-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502092233.9edRdxQm-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/mem_reliable.c:63:14: sparse: sparse: restricted gfp_t degrades to integer mm/mem_reliable.c:219:5: sparse: sparse: symbol 'reliable_limit_handler' was not declared. Should it be static? mm/mem_reliable.c:292:5: sparse: sparse: symbol 'reliable_debug_handler' was not declared. Should it be static? mm/mem_reliable.c:325:5: sparse: sparse: symbol 'reliable_reserve_size_handler' was not declared. Should it be static? >> mm/mem_reliable.c:349:5: sparse: sparse: symbol 'reliable_shmem_bytes_limit_handler' was not declared. Should it be static? mm/mem_reliable.c:219:5: warning: no previous prototype for 'reliable_limit_handler' [-Wmissing-prototypes] 219 | int reliable_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:292:5: warning: no previous prototype for 'reliable_debug_handler' [-Wmissing-prototypes] 292 | int reliable_debug_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:325:5: warning: no previous prototype for 'reliable_reserve_size_handler' [-Wmissing-prototypes] 325 | int reliable_reserve_size_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:349:5: warning: no previous prototype for 'reliable_shmem_bytes_limit_handler' [-Wmissing-prototypes] 349 | int reliable_shmem_bytes_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/reliable_shmem_bytes_limit_handler +349 mm/mem_reliable.c 348 > 349 int reliable_shmem_bytes_limit_handler(struct ctl_table *table, int write, 350 void __user *buffer, size_t *length, loff_t *ppos) 351 { 352 unsigned long *data_ptr = (unsigned long *)(table->data); 353 unsigned long old = *data_ptr; 354 int ret; 355 356 ret = proc_doulongvec_minmax(table, write, buffer, length, ppos); 357 if (ret == 0 && write) { 358 if (*data_ptr > total_reliable_mem_sz()) { 359 *data_ptr = old; 360 return -EINVAL; 361 } 362 363 shmem_reliable_nr_page = *data_ptr >> PAGE_SHIFT; 364 } 365 366 return ret; 367 } 368 #endif 369 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1420/1420] mm/mem_reliable.c:272:5: sparse: sparse: symbol 'reliable_debug_handler' was not declared. Should it be static?
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 851a3ff0b4de68403c9a344c3d5378aa590705b7 [1420/1420] mm: Introduce proc interface to control memory reliable features config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502092003.Ptadb8Sw-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502092003.Ptadb8Sw-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502092003.Ptadb8Sw-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/mem_reliable.c:52:14: sparse: sparse: restricted gfp_t degrades to integer mm/mem_reliable.c:199:5: sparse: sparse: symbol 'reliable_limit_handler' was not declared. Should it be static? >> mm/mem_reliable.c:272:5: sparse: sparse: symbol 'reliable_debug_handler' was not declared. Should it be static? mm/mem_reliable.c:199:5: warning: no previous prototype for 'reliable_limit_handler' [-Wmissing-prototypes] 199 | int reliable_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ mm/mem_reliable.c:272:5: warning: no previous prototype for 'reliable_debug_handler' [-Wmissing-prototypes] 272 | int reliable_debug_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/reliable_debug_handler +272 mm/mem_reliable.c 271 > 272 int reliable_debug_handler(struct ctl_table *table, int write, 273 void __user *buffer, size_t *length, loff_t *ppos) 274 { 275 unsigned long old_ctrl_bits, new_ctrl_bits; 276 static DEFINE_MUTEX(reliable_debug_mutex); 277 int ret; 278 279 mutex_lock(&reliable_debug_mutex); 280 old_ctrl_bits = mem_reliable_ctrl_bits; 281 ret = proc_doulongvec_minmax(table, write, buffer, length, ppos); 282 if (ret == 0 && write) { 283 if (mem_reliable_ctrl_bits > (1 << CTRL_BITS_SHIFT) - 1) { 284 mem_reliable_ctrl_bits = old_ctrl_bits; 285 mutex_unlock(&reliable_debug_mutex); 286 287 return -EINVAL; 288 } 289 290 new_ctrl_bits = mem_reliable_ctrl_bits; 291 mem_reliable_ctrl_bits = old_ctrl_bits; 292 if (!!test_bit(MEM_RELIABLE_ALL, &new_ctrl_bits)) 293 mem_reliable_parse_ctrl_bits(new_ctrl_bits); 294 else 295 mem_reliable_disable_all(); 296 } 297 298 mutex_unlock(&reliable_debug_mutex); 299 300 return ret; 301 } 302 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1420/1420] mm/shmem.c:1601:19: sparse: sparse: invalid assignment: |=
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 3a3a1f75d885bc1d1a25bb753dd2cf9111c457f7 [1420/1420] shmem: Introduce shmem reliable config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502091809.4Ney4Px5-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502091809.4Ney4Px5-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091809.4Ney4Px5-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/shmem.c:688:9: sparse: sparse: self-comparison always evaluates to false >> mm/shmem.c:1601:19: sparse: sparse: invalid assignment: |= mm/shmem.c:1601:19: sparse: left side has type restricted gfp_t mm/shmem.c:1601:19: sparse: right side has type unsigned int mm/shmem.c: note: in included file (through include/linux/percpu_counter.h, include/linux/quota.h, include/linux/fs.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer vim +1601 mm/shmem.c 1595 1596 static inline void shmem_prepare_alloc(gfp_t *gfp_mask) 1597 { 1598 if (!shmem_reliable_is_enabled()) 1599 return; 1600 > 1601 *gfp_mask |= ___GFP_RELIABILITY; 1602 } 1603 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1420/1420] mm/mem_reliable.c:126:5: sparse: sparse: symbol 'reliable_limit_handler' was not declared. Should it be static?
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 1845e7add95773a24019fb72bbea24a0a568663b [1420/1420] mm: Add reliable memory use limit for user tasks config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502091601.sH0xhPOM-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502091601.sH0xhPOM-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091601.sH0xhPOM-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/mem_reliable.c:126:5: sparse: sparse: symbol 'reliable_limit_handler' was not declared. Should it be static? mm/mem_reliable.c:126:5: warning: no previous prototype for 'reliable_limit_handler' [-Wmissing-prototypes] 126 | int reliable_limit_handler(struct ctl_table *table, int write, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/reliable_limit_handler +126 mm/mem_reliable.c 124 125 #ifdef CONFIG_SYSCTL > 126 int reliable_limit_handler(struct ctl_table *table, int write, 127 void __user *buffer, size_t *length, loff_t *ppos) 128 { 129 unsigned long old = task_reliable_limit; 130 int ret; 131 132 ret = proc_doulongvec_minmax(table, write, buffer, length, ppos); 133 if (ret == 0 && write) { 134 if (task_reliable_limit > total_reliable_mem_sz()) { 135 task_reliable_limit = old; 136 return -EINVAL; 137 } 138 } 139 140 return ret; 141 } 142 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1420/1420] include/linux/mem_reliable.h:41:15: sparse: sparse: restricted gfp_t degrades to integer
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 33d1f46ad98ea3a13752a6360d97732ab4e119b9 [1420/1420] mm: Introduce memory reliable config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502091527.Cexj3y4I-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502091527.Cexj3y4I-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091527.Cexj3y4I-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) mm/page_alloc.c:140:1: sparse: sparse: symbol 'pcpu_drain_mutex' was not declared. Should it be static? mm/page_alloc.c:141:1: sparse: sparse: symbol '__pcpu_scope_pcpu_drain' was not declared. Should it be static? mm/page_alloc.c: note: in included file (through include/linux/mm.h): >> include/linux/mem_reliable.h:41:15: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:4572:13: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c:4573:27: sparse: sparse: invalid assignment: |= mm/page_alloc.c:4573:27: sparse: left side has type restricted gfp_t mm/page_alloc.c:4573:27: sparse: right side has type unsigned int mm/page_alloc.c: note: in included file (through include/linux/mm.h): include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:324:27: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:324:27: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:457:34: sparse: sparse: restricted gfp_t degrades to integer mm/page_alloc.c: In function 'mem_init_print_info': mm/page_alloc.c:7373:27: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 20- | ^~ mm/page_alloc.c:7377:9: note: in expansion of macro 'adj_init_size' 7377 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: note: use '&__init_begin[0] <= &_sinittext[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 26- | ^~ mm/page_alloc.c:7377:9: note: in expansion of macro 'adj_init_size' 7377 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 32- | ^ mm/page_alloc.c:7377:9: note: in expansion of macro 'adj_init_size' 7377 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: note: use '&_sinittext[0] < &__init_end[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 38- | ^ mm/page_alloc.c:7377:9: note: in expansion of macro 'adj_init_size' 7377 | adj_init_size(__init_begin, __init_end, init_data_size, | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 44- | ^~ mm/page_alloc.c:7379:9: note: in expansion of macro 'adj_init_size' 7379 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: note: use '&_stext[0] <= &_sinittext[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 50- | ^~ mm/page_alloc.c:7379:9: note: in expansion of macro 'adj_init_size' 7379 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 56- | ^ mm/page_alloc.c:7379:9: note: in expansion of macro 'adj_init_size' 7379 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: note: use '&_sinittext[0] < &_etext[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 62- | ^ mm/page_alloc.c:7379:9: note: in expansion of macro 'adj_init_size' 7379 | adj_init_size(_stext, _etext, codesize, _sinittext, init_code_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 68- | ^~ mm/page_alloc.c:7380:9: note: in expansion of macro 'adj_init_size' 7380 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: note: use '&_sdata[0] <= &__init_begin[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 74- | ^~ mm/page_alloc.c:7380:9: note: in expansion of macro 'adj_init_size' 7380 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 80- | ^ mm/page_alloc.c:7380:9: note: in expansion of macro 'adj_init_size' 7380 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: note: use '&__init_begin[0] < &_edata[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 86- | ^ mm/page_alloc.c:7380:9: note: in expansion of macro 'adj_init_size' 7380 | adj_init_size(_sdata, _edata, datasize, __init_begin, init_data_size); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 92- | ^~ mm/page_alloc.c:7381:9: note: in expansion of macro 'adj_init_size' 7381 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:27: note: use '&_stext[0] <= &__start_rodata[0]' to compare the addresses 7373 | if (start <= pos && pos < end && size > adj) 98- | ^~ mm/page_alloc.c:7381:9: note: in expansion of macro 'adj_init_size' 7381 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); | ^~~~~~~~~~~~~ mm/page_alloc.c:7373:41: warning: comparison between two arrays [-Warray-compare] 7373 | if (start <= pos && pos < end && size > adj) 104- | ^ mm/page_alloc.c:7381:9: note: in expansion of macro 'adj_init_size' 7381 | adj_init_size(_stext, _etext, codesize, __start_rodata, rosize); vim +41 include/linux/mem_reliable.h 31 32 static inline bool skip_none_movable_zone(gfp_t gfp, struct zoneref *z) 33 { 34 if (!mem_reliable_is_enabled()) 35 return false; 36 37 if (!current->mm || (current->flags & PF_KTHREAD)) 38 return false; 39 40 /* user tasks can only alloc memory from non-mirrored region */ > 41 if (!(gfp & ___GFP_RELIABILITY) && (gfp & __GFP_HIGHMEM) && 42 (gfp & __GFP_MOVABLE)) { 43 if (zonelist_zone_idx(z) < ZONE_MOVABLE) 44 return true; 45 } 46 47 return false; 48 } 49 #else 50 #define reliable_enabled 0 51 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1421/1421] drivers/edac/skx_base.o: warning: objtool: skx_decode()+0x27b: can't find switch jump table
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: e34047f6dc606c123911c6db8fa424bb4a035262 [1421/1421] EDAC, skx_edac: Delete duplicated code config: x86_64-buildonly-randconfig-005-20250208 (https://download.01.org/0day-ci/archive/20250209/202502091441.DGtT0ffE-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502091441.DGtT0ffE-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091441.DGtT0ffE-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/edac/skx_base.o: warning: objtool: skx_decode()+0x27b: can't find switch jump table -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1420/1420] include/linux/uaccess.h:112:17: warning: 'kmask' may be used uninitialized
by kernel test robot 09 Feb '25

09 Feb '25

Hi Oleg, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: b77633c8236f2383f8d994249b40ed1bd3d012c0 [1420/1420] signal: simplify set_user_sigmask/restore_user_sigmask config: arm64-randconfig-r131-20250208 (https://download.01.org/0day-ci/archive/20250209/202502091307.JeeYzeRI-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250209/202502091307.JeeYzeRI-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091307.JeeYzeRI-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): include/linux/compat.h:499:9: note: here 499 | case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; | ^~~~ include/linux/compat.h:499:58: warning: this statement may fall through [-Wimplicit-fallthrough=] 499 | case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2]; | ~~~~~~~~~^~~~~~~~~~~~~ include/linux/compat.h:500:9: note: here 500 | case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; | ^~~~ include/linux/compat.h:500:58: warning: this statement may fall through [-Wimplicit-fallthrough=] 500 | case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1]; | ~~~~~~~~~^~~~~~~~~~~~~ include/linux/compat.h:501:9: note: here 501 | case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0]; | ^~~~ In file included from include/asm-generic/termios.h:6, from ./arch/arm64/include/generated/uapi/asm/termios.h:1, from include/uapi/linux/termios.h:6, from include/linux/tty.h:7, from kernel/signal.c:23: In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_sigaltstack' at kernel/signal.c:3635:13, inlined from '__se_sys_sigaltstack' at kernel/signal.c:3631:1: include/linux/uaccess.h:112:17: warning: 'new' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/compiler.h:251, from include/asm-generic/bug.h:5, from arch/arm64/include/asm/bug.h:37, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/slab.h:15, from kernel/signal.c:13: include/linux/kasan-checks.h: In function '__se_sys_sigaltstack': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3633:17: note: 'new' declared here 3633 | stack_t new, old; | ^~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'do_compat_sigaltstack' at kernel/signal.c:3678:7: include/linux/uaccess.h:112:17: warning: 'uss32' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'do_compat_sigaltstack': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3677:32: note: 'uss32' declared here 3677 | compat_stack_t uss32; | ^~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_tgsigqueueinfo' at kernel/signal.c:3496:6, inlined from '__se_sys_rt_tgsigqueueinfo' at kernel/signal.c:3491:1: include/linux/uaccess.h:112:17: warning: 'info' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__se_sys_rt_tgsigqueueinfo': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3494:19: note: 'info' declared here 3494 | siginfo_t info; | ^~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_sigqueueinfo' at kernel/signal.c:3454:6, inlined from '__se_sys_rt_sigqueueinfo' at kernel/signal.c:3450:1: include/linux/uaccess.h:112:17: warning: 'info' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__se_sys_rt_sigqueueinfo': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3453:19: note: 'info' declared here 3453 | siginfo_t info; | ^~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_sigprocmask' at kernel/signal.c:3783:7, inlined from '__se_sys_sigprocmask' at kernel/signal.c:3774:1: include/linux/uaccess.h:112:17: warning: 'new_set' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__se_sys_sigprocmask': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3777:31: note: 'new_set' declared here 3777 | old_sigset_t old_set, new_set; | ^~~~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'set_user_sigmask' at kernel/signal.c:2836:6: >> include/linux/uaccess.h:112:17: warning: 'kmask' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'set_user_sigmask': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:2830:18: note: 'kmask' declared here 2830 | sigset_t kmask; | ^~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_sigprocmask' at kernel/signal.c:2887:7, inlined from '__se_sys_rt_sigprocmask' at kernel/signal.c:2874:1, inlined from '__arm64_sys_rt_sigprocmask' at kernel/signal.c:2874:1: include/linux/uaccess.h:112:17: warning: 'new_set' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__arm64_sys_rt_sigprocmask': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:2877:27: note: 'new_set' declared here 2877 | sigset_t old_set, new_set; | ^~~~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_sigtimedwait' at kernel/signal.c:3281:6, inlined from '__se_sys_rt_sigtimedwait' at kernel/signal.c:3268:1: include/linux/uaccess.h:112:17: warning: 'these' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__se_sys_rt_sigtimedwait': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3272:18: note: 'these' declared here 3272 | sigset_t these; | ^~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'copy_siginfo_from_user32' at kernel/signal.c:3125:6: include/linux/uaccess.h:112:17: warning: 'from' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'copy_siginfo_from_user32': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3123:31: note: 'from' declared here 3123 | struct compat_siginfo from; | ^~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'restore_altstack' at kernel/signal.c:3648:6: include/linux/uaccess.h:112:17: warning: 'new' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'restore_altstack': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3647:17: note: 'new' declared here 3647 | stack_t new; | ^~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_sigaction' at kernel/signal.c:3834:13, inlined from '__se_sys_rt_sigaction' at kernel/signal.c:3822:1, inlined from '__arm64_sys_rt_sigaction' at kernel/signal.c:3822:1: include/linux/uaccess.h:112:17: warning: 'new_sa' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__arm64_sys_rt_sigaction': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:3827:28: note: 'new_sa' declared here 3827 | struct k_sigaction new_sa, old_sa; | ^~~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from '__do_sys_rt_sigsuspend' at kernel/signal.c:4053:6, inlined from '__se_sys_rt_sigsuspend' at kernel/signal.c:4045:1, inlined from '__arm64_sys_rt_sigsuspend' at kernel/signal.c:4045:1: include/linux/uaccess.h:112:17: warning: 'newset' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function '__arm64_sys_rt_sigsuspend': include/linux/kasan-checks.h:7:6: note: by argument 1 of type 'const volatile void *' to 'kasan_check_write' declared here 7 | void kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~ kernel/signal.c:4047:18: note: 'newset' declared here 4047 | sigset_t newset; | ^~~~~~ vim +/kmask +112 include/linux/uaccess.h d597580d373774 Al Viro 2017-03-20 104 d597580d373774 Al Viro 2017-03-20 105 #ifdef INLINE_COPY_FROM_USER d597580d373774 Al Viro 2017-03-20 106 static inline unsigned long d597580d373774 Al Viro 2017-03-20 107 _copy_from_user(void *to, const void __user *from, unsigned long n) d597580d373774 Al Viro 2017-03-20 108 { d597580d373774 Al Viro 2017-03-20 109 unsigned long res = n; 9c5f6908de03a4 Al Viro 2017-06-29 110 might_fault(); 4983cb67a383a7 Linus Torvalds 2019-02-14 111 if (likely(access_ok(from, n))) { 9c5f6908de03a4 Al Viro 2017-06-29 @112 kasan_check_write(to, n); d597580d373774 Al Viro 2017-03-20 113 res = raw_copy_from_user(to, from, n); 9c5f6908de03a4 Al Viro 2017-06-29 114 } d597580d373774 Al Viro 2017-03-20 115 if (unlikely(res)) d597580d373774 Al Viro 2017-03-20 116 memset(to + (n - res), 0, res); d597580d373774 Al Viro 2017-03-20 117 return res; d597580d373774 Al Viro 2017-03-20 118 } d597580d373774 Al Viro 2017-03-20 119 #else d597580d373774 Al Viro 2017-03-20 120 extern unsigned long d597580d373774 Al Viro 2017-03-20 121 _copy_from_user(void *, const void __user *, unsigned long); d597580d373774 Al Viro 2017-03-20 122 #endif d597580d373774 Al Viro 2017-03-20 123 d597580d373774 Al Viro 2017-03-20 124 #ifdef INLINE_COPY_TO_USER d597580d373774 Al Viro 2017-03-20 125 static inline unsigned long d597580d373774 Al Viro 2017-03-20 126 _copy_to_user(void __user *to, const void *from, unsigned long n) d597580d373774 Al Viro 2017-03-20 127 { 9c5f6908de03a4 Al Viro 2017-06-29 128 might_fault(); 4983cb67a383a7 Linus Torvalds 2019-02-14 129 if (access_ok(to, n)) { 9c5f6908de03a4 Al Viro 2017-06-29 130 kasan_check_read(from, n); d597580d373774 Al Viro 2017-03-20 131 n = raw_copy_to_user(to, from, n); 9c5f6908de03a4 Al Viro 2017-06-29 132 } d597580d373774 Al Viro 2017-03-20 133 return n; d597580d373774 Al Viro 2017-03-20 134 } d597580d373774 Al Viro 2017-03-20 135 #else d597580d373774 Al Viro 2017-03-20 136 extern unsigned long d597580d373774 Al Viro 2017-03-20 137 _copy_to_user(void __user *, const void *, unsigned long); d597580d373774 Al Viro 2017-03-20 138 #endif d597580d373774 Al Viro 2017-03-20 139 d597580d373774 Al Viro 2017-03-20 140 static __always_inline unsigned long __must_check d597580d373774 Al Viro 2017-03-20 141 copy_from_user(void *to, const void __user *from, unsigned long n) d597580d373774 Al Viro 2017-03-20 142 { b0377fedb65280 Al Viro 2017-06-29 143 if (likely(check_copy_size(to, n, false))) d597580d373774 Al Viro 2017-03-20 @144 n = _copy_from_user(to, from, n); d597580d373774 Al Viro 2017-03-20 145 return n; d597580d373774 Al Viro 2017-03-20 146 } d597580d373774 Al Viro 2017-03-20 147 :::::: The code at line 112 was first introduced by commit :::::: 9c5f6908de03a4f52ba7364b11fcd6116225480c copy_{from,to}_user(): move kasan checks and might_fault() out-of-line :::::: TO: Al Viro <viro(a)zeniv.linux.org.uk> :::::: CC: Al Viro <viro(a)zeniv.linux.org.uk> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2732/2732] kismet: WARNING: unmet direct dependencies detected for TASK_PLACEMENT_BY_CPU_RANGE when selected by BPF_SCHED
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 263072f655dcd6fd63f7d5dd1f9c5553134982fa commit: f23e7844132b626800d06e42d09e2ffe241c51cc [2732/2732] sched: Introduce CONFIG_TASK_PLACEMENT_BY_CPU_RANGE config: arm64-kismet-CONFIG_TASK_PLACEMENT_BY_CPU_RANGE-CONFIG_BPF_SCHED-0-0 (https://download.01.org/0day-ci/archive/20250209/202502091108.0W1jorJu-lkp@…) reproduce: (https://download.01.org/0day-ci/archive/20250209/202502091108.0W1jorJu-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502091108.0W1jorJu-lkp@intel.com/ kismet warnings: (new ones prefixed by >>) >> kismet: WARNING: unmet direct dependencies detected for TASK_PLACEMENT_BY_CPU_RANGE when selected by BPF_SCHED WARNING: unmet direct dependencies detected for TASK_PLACEMENT_BY_CPU_RANGE Depends on [n]: CGROUPS [=n] Selected by [y]: - BPF_SCHED [=y] && BPF_EVENTS [=y] && BPF_SYSCALL [=y] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2732/2732] kismet: WARNING: unmet direct dependencies detected for BPF_NET_GLOBAL_PROG when selected by SCHED_TASK_RELATIONSHIP
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 263072f655dcd6fd63f7d5dd1f9c5553134982fa commit: 64ba5634c4c60ea966612ab3eca75cbf2d90f9bc [2732/2732] net: add some bpf hooks in tcp stack for network numa relationship config: arm64-kismet-CONFIG_BPF_NET_GLOBAL_PROG-CONFIG_SCHED_TASK_RELATIONSHIP-0-0 (https://download.01.org/0day-ci/archive/20250209/202502090816.X4XejMgg-lkp@…) reproduce: (https://download.01.org/0day-ci/archive/20250209/202502090816.X4XejMgg-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090816.X4XejMgg-lkp@intel.com/ kismet warnings: (new ones prefixed by >>) >> kismet: WARNING: unmet direct dependencies detected for BPF_NET_GLOBAL_PROG when selected by SCHED_TASK_RELATIONSHIP WARNING: unmet direct dependencies detected for PGP_PRELOAD Depends on [n]: CRYPTO [=y] && ASYMMETRIC_KEY_TYPE [=n] Selected by [y]: - PGP_PRELOAD_PUBLIC_KEYS [=y] && CRYPTO [=y] WARNING: unmet direct dependencies detected for BPF_NET_GLOBAL_PROG Depends on [n]: NET [=n] && BPF_SYSCALL [=n] Selected by [y]: - SCHED_TASK_RELATIONSHIP [=y] && CGROUPS [=y] && NUMA_BALANCING [=y] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6] BUILD REGRESSION 96ebabc25b2677a2a225de204946e424cf3887c1
by kernel test robot 09 Feb '25

09 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 96ebabc25b2677a2a225de204946e424cf3887c1 !15002 riscv: Fix sleeping in invalid context in die() Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202502082247.kdBxrDeT-lkp@intel.com mm/madvise.c:297:6: warning: no previous prototype for function 'force_swapin_vma' [-Wmissing-prototypes] mm/memblock.c:1409:20: warning: no previous prototype for function 'memblock_alloc_range_nid_flags' [-Wmissing-prototypes] mm/memcontrol.c:4428:12: warning: 'mem_cgroup_check_swap_for_v1' defined but not used [-Wunused-function] Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- block-blk-io-hierarchy-iodump.c:warning:no-previous-prototype-for-function-__bio_stage_hierarchy_start | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags |-- arm64-allnoconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- arm64-randconfig-001-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- arm64-randconfig-002-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- arm64-randconfig-003-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- arm64-randconfig-004-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- loongarch-allmodconfig | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:unused-variable-cores | |-- include-trace-stages-init.h:warning:str__bonding__trace_system_name-defined-but-not-used | |-- include-trace-stages-init.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-allnoconfig | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:unused-variable-cores | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-allyesconfig | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:unused-variable-cores | |-- include-trace-stages-init.h:warning:str__bonding__trace_system_name-defined-but-not-used | |-- include-trace-stages-init.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-randconfig-001-20250208 | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:unused-variable-cores | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- loongarch-randconfig-002-20250208 | |-- drivers-irqchip-irq-loongson-eiointc.c:warning:unused-variable-cores | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- x86_64-allnoconfig | |-- include-linux-sched-signal.h:linux-kabi.h-is-included-more-than-once. | |-- include-net-tcp.h:linux-kabi.h-is-included-more-than-once. | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- x86_64-allyesconfig | |-- block-blk-io-hierarchy-iodump.c:warning:no-previous-prototype-for-function-__bio_stage_hierarchy_start | |-- mm-dynamic_pool.c:warning:variable-ret-is-uninitialized-when-used-here | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- x86_64-buildonly-randconfig-001-20250207 | `-- mm-memcontrol.c:warning:mem_cgroup_check_swap_for_v1-defined-but-not-used |-- x86_64-buildonly-randconfig-001-20250208 | |-- drivers-net-ethernet-huawei-hinic-hinic_main.c:error:member-reference-type-int-is-not-a-pointer | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- x86_64-buildonly-randconfig-002-20250208 | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-003-20250208 | |-- drivers-crypto-ccp-hygon-tdm-kernel-guard.c:error:NR_syscalls-undeclared-(first-use-in-this-function) | |-- drivers-net-ethernet-huawei-hinic-hinic_dcb.c:error:const-struct-dcbnl_rtnl_ops-has-no-member-named-ieee_getets | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- x86_64-buildonly-randconfig-004-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- x86_64-buildonly-randconfig-005-20250208 | `-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead |-- x86_64-buildonly-randconfig-006-20250208 | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags |-- x86_64-defconfig | |-- mm-madvise.c:warning:no-previous-prototype-for-force_swapin_vma | |-- mm-memblock.c:warning:expecting-prototype-for-memblock_alloc_internal().-Prototype-was-for-__memblock_alloc_internal()-instead | `-- mm-memblock.c:warning:no-previous-prototype-for-memblock_alloc_range_nid_flags `-- x86_64-randconfig-161-20250207 |-- mm-madvise.c:warning:no-previous-prototype-for-function-force_swapin_vma `-- mm-memblock.c:warning:no-previous-prototype-for-function-memblock_alloc_range_nid_flags elapsed time: 724m configs tested: 19 configs skipped: 98 tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 randconfig-001-20250208 clang-21 arm64 randconfig-002-20250208 clang-21 arm64 randconfig-003-20250208 clang-21 arm64 randconfig-004-20250208 clang-15 loongarch allmodconfig gcc-14.2.0 loongarch allnoconfig gcc-14.2.0 loongarch randconfig-001-20250208 gcc-14.2.0 loongarch randconfig-002-20250208 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250208 clang-19 x86_64 buildonly-randconfig-002-20250208 gcc-12 x86_64 buildonly-randconfig-003-20250208 gcc-12 x86_64 buildonly-randconfig-004-20250208 clang-19 x86_64 buildonly-randconfig-005-20250208 clang-19 x86_64 buildonly-randconfig-006-20250208 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10] BUILD REGRESSION 263072f655dcd6fd63f7d5dd1f9c5553134982fa
by kernel test robot 09 Feb '25

09 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 263072f655dcd6fd63f7d5dd1f9c5553134982fa !15046 pinmux: Use sequential access to access desc->pinmux data Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202502082204.WShjoZst-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202502082313.lZnwkvkI-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202502082340.S6mQ2xsd-lkp@intel.com fs/ceph/snap.o: warning: objtool: ceph_update_snap_trace()+0xb8c: unreachable instruction mm/damon/core-test.h:284:2: warning: comparison of distinct pointer types ('typeof (__left) *' (aka 'unsigned int *') and 'typeof (__right) *' (aka 'int *')) [-Wcompare-distinct-pointer-types] Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | |-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-DRM_PANEL_BRIDGE-when-selected-by-DRM_TOSHIBA_TC358762 | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SERIAL_EARLYCON-when-selected-by-SERIAL_IMX_EARLYCON | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SND_SOC_DMIC-when-selected-by-SND_SOC_INTEL_DA7219_MAX98357A_GENERIC | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-SND_SOC_DMIC-when-selected-by-SND_SOC_STM32_DFSDM | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- arm64-defconfig | |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- x86_64-allnoconfig | |-- include-linux-backing-dev.h:warning:declaration-of-struct-cgroup_subsys-will-not-be-visible-outside-of-this-function | |-- include-linux-blk_types.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-cred.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-device-class.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-device.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-ioport.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-mm.h:linux-kabi.h-is-included-more-than-once. | |-- include-linux-swap.h:linux-kabi.h-is-included-more-than-once. | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-allyesconfig | |-- crypto-asymmetric_keys-pgp_library.c:warning:Excess-function-parameter-_data-description-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Excess-function-parameter-_datalen-description-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Function-parameter-or-member-data-not-described-in-pgp_parse_packets | |-- crypto-asymmetric_keys-pgp_library.c:warning:Function-parameter-or-member-datalen-not-described-in-pgp_parse_packets | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | `-- mm-mem_reliable.c:warning:arithmetic-between-different-enumeration-types-(-enum-node_stat_item-and-enum-lru_list-) |-- x86_64-buildonly-randconfig-001-20250208 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-buildonly-randconfig-002-20250205 | `-- fs-ceph-snap.o:warning:objtool:ceph_update_snap_trace:unreachable-instruction |-- x86_64-buildonly-randconfig-002-20250208 | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- x86_64-buildonly-randconfig-003-20250208 | |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page |-- x86_64-buildonly-randconfig-004-20250208 | |-- mm-damon-core-test.h:warning:comparison-of-distinct-pointer-types-(-typeof-(__left)-(aka-unsigned-int-)-and-typeof-(__right)-(aka-int-)) | `-- mm-hugetlb.c:warning:variable-gfp-set-but-not-used |-- x86_64-buildonly-randconfig-005-20250208 | |-- include-linux-backing-dev.h:warning:declaration-of-struct-cgroup_subsys-will-not-be-visible-outside-of-this-function | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file |-- x86_64-buildonly-randconfig-006-20250208 | |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used | |-- mm-khugepaged.c:warning:Function-parameter-or-member-reliable-not-described-in-collapse_file | |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init | `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page `-- x86_64-defconfig |-- include-linux-lsm_hook_defs.h:warning:file_ioctl_compat_default-defined-but-not-used |-- include-trace-trace_events.h:warning:str__fs__trace_system_name-defined-but-not-used |-- mm-page_alloc.c:warning:no-previous-prototype-for-arch_memmap_init `-- mm-page_alloc.c:warning:no-previous-prototype-for-should_fail_alloc_page elapsed time: 728m configs tested: 16 configs skipped: 113 tested configs: arm64 allmodconfig clang-18 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250208 clang-21 arm64 randconfig-002-20250208 clang-21 arm64 randconfig-003-20250208 clang-21 arm64 randconfig-004-20250208 clang-15 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-001-20250208 clang-19 x86_64 buildonly-randconfig-002-20250208 gcc-12 x86_64 buildonly-randconfig-003-20250208 gcc-12 x86_64 buildonly-randconfig-004-20250208 clang-19 x86_64 buildonly-randconfig-005-20250208 clang-19 x86_64 buildonly-randconfig-006-20250208 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2729/2729] mm/hugetlb.c:2216:9: warning: variable 'gfp' set but not used
by kernel test robot 09 Feb '25

09 Feb '25

Hi Ben, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 263072f655dcd6fd63f7d5dd1f9c5553134982fa commit: 27a782f719fdab073c5b0e19764fad1f93cddd00 [2729/2729] mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY config: x86_64-buildonly-randconfig-004-20250208 (https://download.01.org/0day-ci/archive/20250209/202502090535.KiiKAKub-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090535.KiiKAKub-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090535.KiiKAKub-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/hugetlb.c:8: In file included from include/linux/mm.h:1573: include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> mm/hugetlb.c:2216:9: warning: variable 'gfp' set but not used [-Wunused-but-set-variable] 2216 | gfp_t gfp = gfp_mask | __GFP_NOWARN; | ^ 2 warnings generated. vim +/gfp +2216 mm/hugetlb.c 2200 2201 /* 2202 * Use the VMA's mpolicy to allocate a huge page from the buddy. 2203 */ 2204 static 2205 struct page *alloc_buddy_huge_page_with_mpol(struct hstate *h, 2206 struct vm_area_struct *vma, unsigned long addr) 2207 { 2208 struct page *page = NULL; 2209 struct mempolicy *mpol; 2210 gfp_t gfp_mask = htlb_alloc_mask(h); 2211 int nid; 2212 nodemask_t *nodemask; 2213 2214 nid = huge_node(vma, addr, gfp_mask, &mpol, &nodemask); 2215 if (mpol_is_preferred_many(mpol)) { > 2216 gfp_t gfp = gfp_mask | __GFP_NOWARN; 2217 2218 gfp &= ~(__GFP_DIRECT_RECLAIM | __GFP_NOFAIL); 2219 page = alloc_surplus_huge_page(h, gfp_mask, nid, nodemask); 2220 2221 /* Fallback to all nodes if page==NULL */ 2222 nodemask = NULL; 2223 } 2224 2225 if (!page) 2226 page = alloc_surplus_huge_page(h, gfp_mask, nid, nodemask); 2227 mpol_cond_put(mpol); 2228 return page; 2229 } 2230 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1418/1418] mm/hugetlb.c:1370:6: warning: no previous prototype for 'free_huge_page_to_dhugetlb_pool'
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 0bc0d0d57edacd59ebe38d05ad9c4b2bc185aa51 [1418/1418] dhugetlb: backport dynamic hugetlb feature config: x86_64-buildonly-randconfig-001-20250207 (https://download.01.org/0day-ci/archive/20250209/202502090531.QZLxv0jk-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090531.QZLxv0jk-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090531.QZLxv0jk-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/hugetlb.c:1370:6: warning: no previous prototype for 'free_huge_page_to_dhugetlb_pool' [-Wmissing-prototypes] 1370 | void free_huge_page_to_dhugetlb_pool(struct page *page, bool restore_reserve) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from mm/hugetlb.c:14: include/linux/mempolicy.h:329:13: warning: '__do_mbind' defined but not used [-Wunused-function] 329 | static long __do_mbind(unsigned long start, unsigned long len, | ^~~~~~~~~~ -- In file included from include/linux/page_counter.h:6, from mm/memcontrol.c:34: mm/memcontrol.c: In function 'mem_cgroup_get_max': include/linux/kernel.h:884:45: warning: comparison of unsigned expression in '< 0' is always false [-Wtype-limits] 884 | #define min(x, y) __careful_cmp(x, y, <) | ^ include/linux/kernel.h:867:30: note: in definition of macro '__cmp' 867 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^~ include/linux/kernel.h:884:25: note: in expansion of macro '__careful_cmp' 884 | #define min(x, y) __careful_cmp(x, y, <) | ^~~~~~~~~~~~~ mm/memcontrol.c:1542:28: note: in expansion of macro 'min' 1542 | swap_max = min(swap_max, (unsigned long)total_swap_pages); | ^~~ mm/memcontrol.c: At top level: >> mm/memcontrol.c:5008:6: warning: no previous prototype for 'dhugetlb_pool_is_free' [-Wmissing-prototypes] 5008 | bool dhugetlb_pool_is_free(struct cgroup_subsys_state *css) | ^~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/shmem_fs.h:7, from mm/memcontrol.c:39: include/linux/mempolicy.h:329:13: warning: '__do_mbind' defined but not used [-Wunused-function] 329 | static long __do_mbind(unsigned long start, unsigned long len, | ^~~~~~~~~~ mm/memcontrol.c:6718: warning: bad line: | 0, otherwise. vim +/free_huge_page_to_dhugetlb_pool +1370 mm/hugetlb.c 1324 1325 #ifdef CONFIG_DYNAMIC_HUGETLB 1326 static void free_huge_page_to_dhugetlb_pool(struct page *page, 1327 bool restore_reserve) 1328 { 1329 struct hstate *h = page_hstate(page); 1330 struct dhugetlb_pool *hpool; 1331 1332 hpool = get_dhugetlb_pool_from_dhugetlb_pagelist(page); 1333 if (unlikely(!hpool)) { 1334 pr_err("dhugetlb: free error: get hpool failed\n"); 1335 return; 1336 } 1337 1338 spin_lock(&hpool->lock); 1339 ClearPagePool(page); 1340 set_compound_page_dtor(page, NULL_COMPOUND_DTOR); 1341 if (!hstate_is_gigantic(h)) { 1342 list_add(&page->lru, &hpool->dhugetlb_2M_freelists); 1343 hpool->free_reserved_2M++; 1344 hpool->used_2M--; 1345 if (restore_reserve) { 1346 hpool->mmap_reserved_2M++; 1347 trace_dhugetlb_acct_memory(hpool, 1348 hpool->mmap_reserved_2M, 1349 DHUGETLB_RESV_2M); 1350 } 1351 trace_dhugetlb_alloc_free(hpool, page, hpool->free_reserved_2M, 1352 DHUGETLB_FREE_2M); 1353 } else { 1354 list_add(&page->lru, &hpool->dhugetlb_1G_freelists); 1355 hpool->free_reserved_1G++; 1356 hpool->used_1G--; 1357 if (restore_reserve) { 1358 hpool->mmap_reserved_1G++; 1359 trace_dhugetlb_acct_memory(hpool, 1360 hpool->mmap_reserved_1G, 1361 DHUGETLB_RESV_1G); 1362 } 1363 trace_dhugetlb_alloc_free(hpool, page, hpool->free_reserved_1G, 1364 DHUGETLB_FREE_1G); 1365 } 1366 spin_unlock(&hpool->lock); 1367 dhugetlb_pool_put(hpool); 1368 } 1369 #else > 1370 void free_huge_page_to_dhugetlb_pool(struct page *page, bool restore_reserve) 1371 { 1372 } 1373 #endif 1374 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1418/1418] mm/khugepaged.c:1336: warning: Function parameter or member 'reliable' not described in 'collapse_shmem'
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: ff0fb9e816fac221fa24a1810dd895745406070b [1418/1418] mm: thp: Add memory reliable support for hugepaged collapse config: x86_64-buildonly-randconfig-001-20250207 (https://download.01.org/0day-ci/archive/20250209/202502090339.Fw3TyU0R-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090339.Fw3TyU0R-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090339.Fw3TyU0R-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/khugepaged.c:1336: warning: Function parameter or member 'mm' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'mapping' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'start' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'hpage' not described in 'collapse_shmem' mm/khugepaged.c:1336: warning: Function parameter or member 'node' not described in 'collapse_shmem' >> mm/khugepaged.c:1336: warning: Function parameter or member 'reliable' not described in 'collapse_shmem' vim +1336 mm/khugepaged.c f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1314 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1315 /** f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1316 * collapse_shmem - collapse small tmpfs/shmem pages into huge one. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1317 * f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1318 * Basic scheme is simple, details are more complex: af24c01831e4e21 Hugh Dickins 2018-11-30 1319 * - allocate and lock a new huge page; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1320 * - scan over radix tree replacing old pages the new one f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1321 * + swap in pages if necessary; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1322 * + fill in gaps; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1323 * + keep old pages around in case if rollback is required; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1324 * - if replacing succeed: f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1325 * + copy data over; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1326 * + free old pages; af24c01831e4e21 Hugh Dickins 2018-11-30 1327 * + unlock huge page; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1328 * - if replacing failed; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1329 * + put all pages back and unfreeze them; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1330 * + restore gaps in the radix-tree; af24c01831e4e21 Hugh Dickins 2018-11-30 1331 * + unlock and free huge page; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1332 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1333 static void collapse_shmem(struct mm_struct *mm, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1334 struct address_space *mapping, pgoff_t start, ff0fb9e816fac22 Ma Wupeng 2022-02-09 1335 struct page **hpage, int node, bool reliable) f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 @1336 { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1337 gfp_t gfp; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1338 struct page *page, *new_page, *tmp; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1339 struct mem_cgroup *memcg; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1340 pgoff_t index, end = start + HPAGE_PMD_NR; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1341 LIST_HEAD(pagelist); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1342 struct radix_tree_iter iter; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1343 void **slot; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1344 int nr_none = 0, result = SCAN_SUCCEED; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1345 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1346 VM_BUG_ON(start & (HPAGE_PMD_NR - 1)); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1347 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1348 /* Only allocate from the target node */ 41b6167e8f746b4 Michal Hocko 2017-01-10 1349 gfp = alloc_hugepage_khugepaged_gfpmask() | __GFP_THISNODE; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1350 ff0fb9e816fac22 Ma Wupeng 2022-02-09 1351 if (reliable) ff0fb9e816fac22 Ma Wupeng 2022-02-09 1352 gfp |= ___GFP_RELIABILITY; ff0fb9e816fac22 Ma Wupeng 2022-02-09 1353 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1354 new_page = khugepaged_alloc_page(hpage, gfp, node); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1355 if (!new_page) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1356 result = SCAN_ALLOC_HUGE_PAGE_FAIL; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1357 goto out; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1358 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1359 2a70f6a76bb86d1 Michal Hocko 2018-04-10 1360 if (unlikely(mem_cgroup_try_charge(new_page, mm, gfp, &memcg, true))) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1361 result = SCAN_CGROUP_CHARGE_FAIL; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1362 goto out; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1363 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1364 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1365 __SetPageLocked(new_page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1366 __SetPageSwapBacked(new_page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1367 new_page->index = start; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1368 new_page->mapping = mapping; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1369 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1370 /* af24c01831e4e21 Hugh Dickins 2018-11-30 1371 * At this point the new_page is locked and not up-to-date. af24c01831e4e21 Hugh Dickins 2018-11-30 1372 * It's safe to insert it into the page cache, because nobody would af24c01831e4e21 Hugh Dickins 2018-11-30 1373 * be able to map it or use it in another way until we unlock it. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1374 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1375 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1376 index = start; b93b016313b3ba8 Matthew Wilcox 2018-04-10 1377 xa_lock_irq(&mapping->i_pages); b93b016313b3ba8 Matthew Wilcox 2018-04-10 1378 radix_tree_for_each_slot(slot, &mapping->i_pages, &iter, start) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1379 int n = min(iter.index, end) - index; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1380 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1381 /* 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1382 * Stop if extent has been hole-punched, and is now completely 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1383 * empty (the more obvious i_size_read() check would take an 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1384 * irq-unsafe seqlock on 32-bit). 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1385 */ 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1386 if (n >= HPAGE_PMD_NR) { 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1387 result = SCAN_TRUNCATED; 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1388 goto tree_locked; 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1389 } 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1390 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1391 /* f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1392 * Handle holes in the radix tree: charge it from shmem and f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1393 * insert relevant subpage of new_page into the radix-tree. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1394 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1395 if (n && !shmem_charge(mapping->host, n)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1396 result = SCAN_FAIL; 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1397 goto tree_locked; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1398 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1399 for (; index < min(iter.index, end); index++) { b93b016313b3ba8 Matthew Wilcox 2018-04-10 1400 radix_tree_insert(&mapping->i_pages, index, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1401 new_page + (index % HPAGE_PMD_NR)); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1402 } 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1403 nr_none += n; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1404 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1405 /* We are done. */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1406 if (index >= end) f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1407 break; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1408 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1409 page = radix_tree_deref_slot_protected(slot, b93b016313b3ba8 Matthew Wilcox 2018-04-10 1410 &mapping->i_pages.xa_lock); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1411 if (radix_tree_exceptional_entry(page) || !PageUptodate(page)) { b93b016313b3ba8 Matthew Wilcox 2018-04-10 1412 xa_unlock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1413 /* swap in or instantiate fallocated page */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1414 if (shmem_getpage(mapping->host, index, &page, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1415 SGP_NOHUGE)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1416 result = SCAN_FAIL; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1417 goto tree_unlocked; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1418 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1419 } else if (trylock_page(page)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1420 get_page(page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1421 xa_unlock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1422 } else { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1423 result = SCAN_PAGE_LOCK; 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1424 goto tree_locked; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1425 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1426 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1427 /* b93b016313b3ba8 Matthew Wilcox 2018-04-10 1428 * The page must be locked, so we can drop the i_pages lock f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1429 * without racing with truncate. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1430 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1431 VM_BUG_ON_PAGE(!PageLocked(page), page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1432 VM_BUG_ON_PAGE(!PageUptodate(page), page); 8b37c40503eadc6 Hugh Dickins 2018-11-30 1433 8b37c40503eadc6 Hugh Dickins 2018-11-30 1434 /* 8b37c40503eadc6 Hugh Dickins 2018-11-30 1435 * If file was truncated then extended, or hole-punched, before 8b37c40503eadc6 Hugh Dickins 2018-11-30 1436 * we locked the first page, then a THP might be there already. 8b37c40503eadc6 Hugh Dickins 2018-11-30 1437 */ 8b37c40503eadc6 Hugh Dickins 2018-11-30 1438 if (PageTransCompound(page)) { 8b37c40503eadc6 Hugh Dickins 2018-11-30 1439 result = SCAN_PAGE_COMPOUND; 8b37c40503eadc6 Hugh Dickins 2018-11-30 1440 goto out_unlock; 8b37c40503eadc6 Hugh Dickins 2018-11-30 1441 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1442 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1443 if (page_mapping(page) != mapping) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1444 result = SCAN_TRUNCATED; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1445 goto out_unlock; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1446 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1447 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1448 if (isolate_lru_page(page)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1449 result = SCAN_DEL_PAGE_LRU; 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1450 goto out_unlock; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1451 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1452 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1453 if (page_mapped(page)) 977fbdcd5986c9f Matthew Wilcox 2018-01-31 1454 unmap_mapping_pages(mapping, index, 1, false); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1455 b93b016313b3ba8 Matthew Wilcox 2018-04-10 1456 xa_lock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1457 b93b016313b3ba8 Matthew Wilcox 2018-04-10 1458 slot = radix_tree_lookup_slot(&mapping->i_pages, index); 91a45f71078a656 Johannes Weiner 2016-12-12 1459 VM_BUG_ON_PAGE(page != radix_tree_deref_slot_protected(slot, b93b016313b3ba8 Matthew Wilcox 2018-04-10 1460 &mapping->i_pages.xa_lock), page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1461 VM_BUG_ON_PAGE(page_mapped(page), page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1462 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1463 /* f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1464 * The page is expected to have page_count() == 3: f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1465 * - we hold a pin on it; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1466 * - one reference from radix tree; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1467 * - one from isolate_lru_page; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1468 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1469 if (!page_ref_freeze(page, 3)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1470 result = SCAN_PAGE_COUNT; 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1471 xa_unlock_irq(&mapping->i_pages); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1472 putback_lru_page(page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1473 goto out_unlock; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1474 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1475 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1476 /* f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1477 * Add the page to the list to be able to undo the collapse if f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1478 * something go wrong. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1479 */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1480 list_add_tail(&page->lru, &pagelist); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1481 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1482 /* Finally, replace with the new page. */ b93b016313b3ba8 Matthew Wilcox 2018-04-10 1483 radix_tree_replace_slot(&mapping->i_pages, slot, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1484 new_page + (index % HPAGE_PMD_NR)); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1485 148deab223b2373 Matthew Wilcox 2016-12-14 1486 slot = radix_tree_iter_resume(slot, &iter); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1487 index++; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1488 continue; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1489 out_unlock: f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1490 unlock_page(page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1491 put_page(page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1492 goto tree_unlocked; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1493 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1494 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1495 /* f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1496 * Handle hole in radix tree at the end of the range. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1497 * This code only triggers if there's nothing in radix tree f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1498 * beyond 'end'. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1499 */ 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1500 if (index < end) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1501 int n = end - index; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1502 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1503 /* Stop if extent has been truncated, and is now empty */ 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1504 if (n >= HPAGE_PMD_NR) { 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1505 result = SCAN_TRUNCATED; 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1506 goto tree_locked; 8797f2f4fe0d555 Hugh Dickins 2018-11-30 1507 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1508 if (!shmem_charge(mapping->host, n)) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1509 result = SCAN_FAIL; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1510 goto tree_locked; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1511 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1512 for (; index < end; index++) { b93b016313b3ba8 Matthew Wilcox 2018-04-10 1513 radix_tree_insert(&mapping->i_pages, index, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1514 new_page + (index % HPAGE_PMD_NR)); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1515 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1516 nr_none += n; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1517 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1518 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1519 __inc_node_page_state(new_page, NR_SHMEM_THPS); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1520 if (nr_none) { 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1521 struct zone *zone = page_zone(new_page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1522 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1523 __mod_node_page_state(zone->zone_pgdat, NR_FILE_PAGES, nr_none); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1524 __mod_node_page_state(zone->zone_pgdat, NR_SHMEM, nr_none); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1525 } 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1526 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1527 tree_locked: b93b016313b3ba8 Matthew Wilcox 2018-04-10 1528 xa_unlock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1529 tree_unlocked: f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1530 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1531 if (result == SCAN_SUCCEED) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1532 /* f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1533 * Replacing old pages with new one has succeed, now we need to f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1534 * copy the content and free old pages. f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1535 */ ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1536 index = start; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1537 list_for_each_entry_safe(page, tmp, &pagelist, lru) { ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1538 while (index < page->index) { ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1539 clear_highpage(new_page + (index % HPAGE_PMD_NR)); ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1540 index++; ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1541 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1542 copy_highpage(new_page + (page->index % HPAGE_PMD_NR), f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1543 page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1544 list_del(&page->lru); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1545 page->mapping = NULL; 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1546 page_ref_unfreeze(page, 1); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1547 ClearPageActive(page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1548 ClearPageUnevictable(page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1549 unlock_page(page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1550 put_page(page); ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1551 index++; ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1552 } ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1553 while (index < end) { ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1554 clear_highpage(new_page + (index % HPAGE_PMD_NR)); ee13d69bc1e8a55 Hugh Dickins 2018-11-30 1555 index++; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1556 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1557 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1558 SetPageUptodate(new_page); af24c01831e4e21 Hugh Dickins 2018-11-30 1559 page_ref_add(new_page, HPAGE_PMD_NR - 1); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1560 set_page_dirty(new_page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1561 mem_cgroup_commit_charge(new_page, memcg, false, true); 9d5425af85abe36 Chris Down 2021-06-30 1562 count_memcg_events(memcg, THP_COLLAPSE_ALLOC, 1); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1563 lru_cache_add_anon(new_page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1564 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1565 /* 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1566 * Remove pte page tables, so we can re-fault the page as huge. 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1567 */ 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1568 retract_page_tables(mapping, start); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1569 *hpage = NULL; 87aa752906ecf69 Yang Shi 2018-08-17 1570 87aa752906ecf69 Yang Shi 2018-08-17 1571 khugepaged_pages_collapsed++; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1572 } else { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1573 /* Something went wrong: rollback changes to the radix-tree */ b93b016313b3ba8 Matthew Wilcox 2018-04-10 1574 xa_lock_irq(&mapping->i_pages); 78141aabfbb9560 Hugh Dickins 2018-11-30 1575 mapping->nrpages -= nr_none; 78141aabfbb9560 Hugh Dickins 2018-11-30 1576 shmem_uncharge(mapping->host, nr_none); 78141aabfbb9560 Hugh Dickins 2018-11-30 1577 b93b016313b3ba8 Matthew Wilcox 2018-04-10 1578 radix_tree_for_each_slot(slot, &mapping->i_pages, &iter, start) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1579 if (iter.index >= end) f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1580 break; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1581 page = list_first_entry_or_null(&pagelist, f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1582 struct page, lru); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1583 if (!page || iter.index < page->index) { f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1584 if (!nr_none) f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1585 break; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1586 nr_none--; 59749e6ce53735d Johannes Weiner 2016-12-12 1587 /* Put holes back where they were */ b93b016313b3ba8 Matthew Wilcox 2018-04-10 1588 radix_tree_delete(&mapping->i_pages, iter.index); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1589 continue; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1590 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1591 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1592 VM_BUG_ON_PAGE(page->index != iter.index, page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1593 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1594 /* Unfreeze the page. */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1595 list_del(&page->lru); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1596 page_ref_unfreeze(page, 2); b93b016313b3ba8 Matthew Wilcox 2018-04-10 1597 radix_tree_replace_slot(&mapping->i_pages, slot, page); 148deab223b2373 Matthew Wilcox 2016-12-14 1598 slot = radix_tree_iter_resume(slot, &iter); b93b016313b3ba8 Matthew Wilcox 2018-04-10 1599 xa_unlock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1600 unlock_page(page); 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1601 putback_lru_page(page); b93b016313b3ba8 Matthew Wilcox 2018-04-10 1602 xa_lock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1603 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1604 VM_BUG_ON(nr_none); b93b016313b3ba8 Matthew Wilcox 2018-04-10 1605 xa_unlock_irq(&mapping->i_pages); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1606 f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1607 mem_cgroup_cancel_charge(new_page, memcg, true); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1608 new_page->mapping = NULL; f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1609 } 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1610 3e9646c76cb91d6 Hugh Dickins 2018-11-30 1611 unlock_page(new_page); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1612 out: f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1613 VM_BUG_ON(!list_empty(&pagelist)); f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1614 /* TODO: tracepoints */ f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1615 } f3f0e1d2150b2b9 Kirill A. Shutemov 2016-07-26 1616 :::::: The code at line 1336 was first introduced by commit :::::: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 khugepaged: add support of collapse for tmpfs/shmem pages :::::: TO: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1418/1418] mm/maccess.c:64:6: warning: no previous prototype for '__probe_user_read'
by kernel test robot 09 Feb '25

09 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 5c5bac1227aee80ee106ec07b32c981558049304 [1418/1418] uaccess: Add non-pagefault user-space read functions config: x86_64-buildonly-randconfig-001-20250207 (https://download.01.org/0day-ci/archive/20250209/202502090137.3KkiIJ8x-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090137.3KkiIJ8x-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090137.3KkiIJ8x-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/maccess.c:64:6: warning: no previous prototype for '__probe_user_read' [-Wmissing-prototypes] 64 | long __probe_user_read(void *dst, const void __user *src, size_t size) | ^~~~~~~~~~~~~~~~~ vim +/__probe_user_read +64 mm/maccess.c 50 51 /** 52 * probe_user_read(): safely attempt to read from a user-space location 53 * @dst: pointer to the buffer that shall take the data 54 * @src: address to read from. This must be a user address. 55 * @size: size of the data chunk 56 * 57 * Safely read from user address @src to the buffer at @dst. If a kernel fault 58 * happens, handle that and return -EFAULT. 59 */ 60 61 long __weak probe_user_read(void *dst, const void __user *src, size_t size) 62 __attribute__((alias("__probe_user_read"))); 63 > 64 long __probe_user_read(void *dst, const void __user *src, size_t size) 65 { 66 long ret = -EFAULT; 67 mm_segment_t old_fs = get_fs(); 68 69 set_fs(USER_DS); 70 if (access_ok(src, size)) 71 ret = probe_read_common(dst, src, size); 72 set_fs(old_fs); 73 74 return ret; 75 } 76 EXPORT_SYMBOL_GPL(probe_user_read); 77 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION cc7cb040bd0afe96f1da94c9f21eda5a986510a5
by kernel test robot 09 Feb '25

09 Feb '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 !15017 spi: mpc52xx: Add cancel_work_sync before module remove Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202502082031.V2tZWUQg-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202502082225.bZGoGhTq-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202502082245.oXwKH6sI-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202502082355.jrzYRRaD-lkp@intel.com include/linux/thread_info.h:59:17: warning: 'ctl' may be used uninitialized [-Wmaybe-uninitialized] include/linux/uaccess.h:115:17: warning: 'from' may be used uninitialized [-Wmaybe-uninitialized] mm/.tmp_ioremap.o: warning: objtool: missing symbol for section .text mm/hugetlb.c:1370:6: warning: no previous prototype for function 'free_huge_page_to_dhugetlb_pool' [-Wmissing-prototypes] mm/kasan/kasan_init.c:328:16: warning: variable 'p4d' set but not used [-Wunused-but-set-variable] mm/memcontrol.c:432:54: warning: array subscript nid is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] mm/memcontrol.c:5375: warning: bad line: | 0, otherwise. Unverified Error/Warning (likely false positive, kindly check if interested): drivers/mtd/spi-nor/fsl-quadspi.c:909:9: sparse: sparse: incorrect type in argument 2 (different address spaces) drivers/usb/mtu3/mtu3_qmu.c:297:26: sparse: sparse: incorrect type in assignment (different base types) kernel/trace/ftrace.c:295:49: sparse: sparse: incorrect type in argument 1 (different address spaces) Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- block-bio-integrity.c:warning:no-previous-prototype-for-__bio_integrity_free | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-io-hierarchy-iodump.c:warning:no-previous-prototype-for-__bio_stage_hierarchy_start | |-- block-blk-iolatency.c:warning:variable-blkiolat-set-but-not-used | |-- block-blk-iolatency.c:warning:variable-changed-set-but-not-used | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-disk_scan_partitions | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | |-- include-asm-generic-bitops-non-atomic.h:warning:array-subscript-long-unsigned-int-is-partly-outside-array-bounds-of-u32-aka-unsigned-int | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-linux-thread_info.h:warning:b-may-be-used-uninitialized | |-- include-net-netns-generic.h:warning:array-subscript-id-is-outside-array-bounds-of-void | |-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized | |-- mm-kasan-kasan_init.c:warning:variable-p4d-set-but-not-used | `-- mm-memcontrol.c:warning:array-subscript-nid-is-outside-array-bounds-of-struct-mem_cgroup_per_node |-- arm64-allnoconfig | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-001-20250207 | `-- mm-kasan-kasan_init.c:warning:variable-p4d-set-but-not-used |-- arm64-randconfig-001-20250208 | |-- block-bio-integrity.c:warning:no-previous-prototype-for-__bio_integrity_free | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-iolatency.c:warning:variable-blkiolat-set-but-not-used | |-- block-blk-iolatency.c:warning:variable-changed-set-but-not-used | |-- block-blk-merge.c:warning:no-previous-prototype-for-blk_try_req_merge | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-__blk_mq_sched_dispatch_requests | |-- block-genhd.c:warning:no-previous-prototype-for-disk_scan_partitions | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-list.h:warning:array-subscript-is-outside-array-bounds-of-struct-plist_node | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-tmp-in-((struct-list_head-)lip)-.prev | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-plist.h:warning:array-subscript-is-outside-array-bounds-of-struct-plist_node | `-- include-scsi-scsi_cmnd.h:warning:scsi_cmnd-may-be-used-uninitialized |-- arm64-randconfig-002-20250207 | `-- mm-memcontrol.c:warning:array-subscript-nid-is-outside-array-bounds-of-struct-mem_cgroup_per_node |-- arm64-randconfig-002-20250208 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-003-20250208 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-004-20250208 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- arm64-randconfig-r131-20250208 | |-- drivers-mtd-spi-nor-fsl-quadspi.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-void-const-got-void-noderef-__iomem | |-- drivers-usb-mtu3-mtu3_qmu.c:sparse:sparse:incorrect-type-in-assignment-(different-base-types)-expected-unsigned-char-usertype-rx_ext_addr-got-restricted-__le16-usertype | |-- include-linux-uaccess.h:warning:from-may-be-used-uninitialized | `-- kernel-trace-ftrace.c:sparse:sparse:incorrect-type-in-argument-(different-address-spaces)-expected-struct-ftrace_ops-ops-got-struct-ftrace_ops-noderef-__rcu-static-toplevel-ftrace_ops_list |-- x86_64-allmodconfig | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-iolatency.c:warning:variable-blkiolat-set-but-not-used | |-- block-blk-iolatency.c:warning:variable-changed-set-but-not-used | `-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests |-- x86_64-allnoconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-allyesconfig | |-- block-bio-integrity.c:warning:no-previous-prototype-for-function-__bio_integrity_free | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-blkg-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-delta-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-now-not-described-in-blkcg_add_delay | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-q-not-described-in-blkcg_schedule_throttle | |-- block-blk-cgroup.c:warning:Function-parameter-or-member-use_memdelay-not-described-in-blkcg_schedule_throttle | |-- block-blk-iolatency.c:warning:variable-blkiolat-set-but-not-used | |-- block-blk-iolatency.c:warning:variable-changed-set-but-not-used | |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-function-__blk_mq_sched_dispatch_requests | |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_issue | |-- block-blk-wbt.c:warning:no-previous-prototype-for-function-wbt_requeue | |-- block-genhd.c:warning:no-previous-prototype-for-function-disk_scan_partitions | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- x86_64-buildonly-randconfig-001-20250207 | `-- mm-memcontrol.c:warning:bad-line:otherwise. |-- x86_64-buildonly-randconfig-002-20250208 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-net-ethernet-netswift-ngbe-ngbe_main.c:warning:unused-variable-len | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne | |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-thread_info.h:warning:ctl-may-be-used-uninitialized | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled |-- x86_64-buildonly-randconfig-003-20250207 | `-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool |-- x86_64-buildonly-randconfig-004-20250207 | `-- mm-.tmp_ioremap.o:warning:objtool:missing-symbol-for-section-.text `-- x86_64-defconfig |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. |-- block-blk-merge.c:warning:no-previous-prototype-for-blk_try_req_merge |-- block-blk-mq-sched.c:warning:no-previous-prototype-for-__blk_mq_sched_dispatch_requests |-- block-genhd.c:warning:no-previous-prototype-for-disk_scan_partitions |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-long-long-unsigned-int-long-long-unsigne |-- include-linux-kernel.h:warning:comparison-of-distinct-pointer-types-lacks-a-cast `-- mm-ioremap.o:warning:objtool:missing-symbol-for-section-.text elapsed time: 738m configs tested: 10 configs skipped: 108 tested configs: arm64 allmodconfig gcc-14.2.0 arm64 allnoconfig gcc-14.2.0 arm64 randconfig-001-20250208 gcc-14.2.0 arm64 randconfig-002-20250208 gcc-14.2.0 arm64 randconfig-003-20250208 gcc-14.2.0 arm64 randconfig-004-20250208 gcc-14.2.0 x86_64 allnoconfig clang-19 x86_64 allyesconfig clang-19 x86_64 buildonly-randconfig-002-20250208 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1421/1421] include/linux/thread_info.h:59:17: warning: 'ctl' may be used uninitialized
by kernel test robot 08 Feb '25

08 Feb '25

Hi Jens, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: c6e864fee7c3dd416048d129997c7def53cb9ed8 [1421/1421] net: separate out the msghdr copy from ___sys_{send,recv}msg() config: x86_64-buildonly-randconfig-002-20250208 (https://download.01.org/0day-ci/archive/20250208/202502082355.jrzYRRaD-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082355.jrzYRRaD-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082355.jrzYRRaD-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): In function '__sock_release', inlined from 'sock_close' at net/socket.c:1140:2: net/socket.c:579:21: warning: array subscript -1 is outside array bounds of 'struct inode[9078122083518480]' [-Warray-bounds] 579 | sock->ops->release(sock); | ~~~~^~~~~ net/socket.c:580:26: warning: array subscript -1 is outside array bounds of 'struct inode[9078122083518480]' [-Warray-bounds] 580 | sock->sk = NULL; In file included from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:81, from include/linux/spinlock.h:51, from include/linux/mmzone.h:9, from include/linux/gfp.h:6, from include/linux/mm.h:11, from net/socket.c:61: In function 'check_object_size', inlined from 'check_copy_size' at include/linux/thread_info.h:90:2, inlined from 'copy_from_user' at include/linux/uaccess.h:143:6, inlined from '____sys_sendmsg' at net/socket.c:2110:7: >> include/linux/thread_info.h:59:17: warning: 'ctl' may be used uninitialized [-Wmaybe-uninitialized] 59 | __check_object_size(ptr, n, to_user); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function '____sys_sendmsg': include/linux/thread_info.h:52:13: note: by argument 1 of type 'const void *' to '__check_object_size' declared here 52 | extern void __check_object_size(const void *ptr, unsigned long n, | ^~~~~~~~~~~~~~~~~~~ net/socket.c:2075:23: note: 'ctl' declared here 2075 | unsigned char ctl[sizeof(struct cmsghdr) + 20] | ^~~ In function 'check_object_size', inlined from 'check_copy_size' at include/linux/thread_info.h:90:2, inlined from 'copy_from_user' at include/linux/uaccess.h:143:6, inlined from '__do_sys_socketcall' at net/socket.c:2618:6, inlined from '__se_sys_socketcall' at net/socket.c:2602:1: include/linux/thread_info.h:59:17: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized] 59 | __check_object_size(ptr, n, to_user); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function '__se_sys_socketcall': include/linux/thread_info.h:52:13: note: by argument 1 of type 'const void *' to '__check_object_size' declared here 52 | extern void __check_object_size(const void *ptr, unsigned long n, | ^~~~~~~~~~~~~~~~~~~ net/socket.c:2604:23: note: 'a' declared here 2604 | unsigned long a[AUDITSC_ARGS]; | ^ net/socket.c:573: warning: Function parameter or member 'inode' not described in '__sock_release' vim +/ctl +59 include/linux/thread_info.h 0f60a8efe4005a Kees Cook 2016-07-12 50 f5509cc18daa7f Kees Cook 2016-06-07 51 #ifdef CONFIG_HARDENED_USERCOPY f5509cc18daa7f Kees Cook 2016-06-07 52 extern void __check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 53 bool to_user); f5509cc18daa7f Kees Cook 2016-06-07 54 a85d6b8242dc78 Kees Cook 2016-09-07 55 static __always_inline void check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 56 bool to_user) f5509cc18daa7f Kees Cook 2016-06-07 57 { 81409e9e280588 Kees Cook 2016-08-31 58 if (!__builtin_constant_p(n)) f5509cc18daa7f Kees Cook 2016-06-07 @59 __check_object_size(ptr, n, to_user); f5509cc18daa7f Kees Cook 2016-06-07 60 } f5509cc18daa7f Kees Cook 2016-06-07 61 #else f5509cc18daa7f Kees Cook 2016-06-07 62 static inline void check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 63 bool to_user) f5509cc18daa7f Kees Cook 2016-06-07 64 { } f5509cc18daa7f Kees Cook 2016-06-07 65 #endif /* CONFIG_HARDENED_USERCOPY */ f5509cc18daa7f Kees Cook 2016-06-07 66 :::::: The code at line 59 was first introduced by commit :::::: f5509cc18daa7f82bcc553be70df2117c8eedc16 mm: Hardened usercopy :::::: TO: Kees Cook <keescook(a)chromium.org> :::::: CC: Kees Cook <keescook(a)chromium.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2722/2722] fs/ceph/snap.o: warning: objtool: ceph_update_snap_trace()+0xb8c: unreachable instruction
by kernel test robot 08 Feb '25

08 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 263072f655dcd6fd63f7d5dd1f9c5553134982fa commit: 4925e6790b8bb3d912820724a224fbe9bf7ad4cf [2722/2722] ceph: blocklist the kclient when receiving corrupted snap trace config: x86_64-buildonly-randconfig-002-20250205 (https://download.01.org/0day-ci/archive/20250208/202502082313.lZnwkvkI-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082313.lZnwkvkI-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082313.lZnwkvkI-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/ceph/snap.o: warning: objtool: ceph_update_snap_trace()+0xb8c: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2729/2729] mm/damon/core-test.h:284:2: warning: comparison of distinct pointer types ('typeof (__left) *' (aka 'unsigned int *') and 'typeof (__right) *' (aka 'int *'))
by kernel test robot 08 Feb '25

08 Feb '25

Hi SeongJae, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 263072f655dcd6fd63f7d5dd1f9c5553134982fa commit: 83b931be40b2829e20f38356509d8706ea6b6238 [2729/2729] mm/damon/core-test: test damon_set_regions config: x86_64-buildonly-randconfig-004-20250208 (https://download.01.org/0day-ci/archive/20250208/202502082340.S6mQ2xsd-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082340.S6mQ2xsd-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082340.S6mQ2xsd-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/damon/core.c:13: In file included from include/linux/mm.h:1573: include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from mm/damon/core.c:1248: >> mm/damon/core-test.h:284:2: warning: comparison of distinct pointer types ('typeof (__left) *' (aka 'unsigned int *') and 'typeof (__right) *' (aka 'int *')) [-Wcompare-distinct-pointer-types] 284 | KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 3); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kunit/test.h:1234:2: note: expanded from macro 'KUNIT_EXPECT_EQ' 1234 | KUNIT_BINARY_EQ_ASSERTION(test, KUNIT_EXPECTATION, left, right) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kunit/test.h:871:2: note: expanded from macro 'KUNIT_BINARY_EQ_ASSERTION' 871 | KUNIT_BINARY_EQ_MSG_ASSERTION(test, \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 872 | assert_type, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 873 | left, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 874 | right, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 875 | NULL) | ~~~~~ include/kunit/test.h:861:2: note: expanded from macro 'KUNIT_BINARY_EQ_MSG_ASSERTION' 861 | KUNIT_BASE_EQ_MSG_ASSERTION(test, \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 862 | kunit_binary_assert, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 863 | KUNIT_INIT_BINARY_ASSERT_STRUCT, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 864 | assert_type, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 865 | left, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 866 | right, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 867 | fmt, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 868 | ##__VA_ARGS__) | ~~~~~~~~~~~~~~ include/kunit/test.h:772:2: note: expanded from macro 'KUNIT_BASE_EQ_MSG_ASSERTION' 772 | KUNIT_BASE_BINARY_ASSERTION(test, \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 773 | assert_class, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 774 | ASSERT_CLASS_INIT, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 775 | assert_type, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 776 | left, ==, right, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 777 | fmt, \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 778 | ##__VA_ARGS__) | ~~~~~~~~~~~~~~ include/kunit/test.h:748:9: note: expanded from macro 'KUNIT_BASE_BINARY_ASSERTION' 748 | ((void)__typecheck(__left, __right)); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' 20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) | ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 2 warnings generated. vim +284 mm/damon/core-test.h 269 270 static void damon_test_set_regions(struct kunit *test) 271 { 272 struct damon_target *t = damon_new_target(); 273 struct damon_region *r1 = damon_new_region(4, 16); 274 struct damon_region *r2 = damon_new_region(24, 32); 275 struct damon_addr_range range = {.start = 8, .end = 28}; 276 unsigned long expects[] = {8, 16, 16, 24, 24, 28}; 277 int expect_idx = 0; 278 struct damon_region *r; 279 280 damon_add_region(r1, t); 281 damon_add_region(r2, t); 282 damon_set_regions(t, &range, 1); 283 > 284 KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 3); 285 damon_for_each_region(r, t) { 286 KUNIT_EXPECT_EQ(test, r->ar.start, expects[expect_idx++]); 287 KUNIT_EXPECT_EQ(test, r->ar.end, expects[expect_idx++]); 288 } 289 damon_destroy_target(t); 290 } 291 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1418/1418] mm/hugetlb.c:1370:6: warning: no previous prototype for function 'free_huge_page_to_dhugetlb_pool'
by kernel test robot 08 Feb '25

08 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 0bc0d0d57edacd59ebe38d05ad9c4b2bc185aa51 [1418/1418] dhugetlb: backport dynamic hugetlb feature config: x86_64-buildonly-randconfig-003-20250207 (https://download.01.org/0day-ci/archive/20250208/202502082245.oXwKH6sI-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082245.oXwKH6sI-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082245.oXwKH6sI-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/hugetlb.c:13: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from mm/hugetlb.c:35: include/linux/mm_inline.h:33:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 33 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~ ^ ~~~ include/linux/mm_inline.h:35:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 35 | NR_ZONE_LRU_BASE + lru, nr_pages); | ~~~~~~~~~~~~~~~~ ^ ~~~ >> mm/hugetlb.c:1370:6: warning: no previous prototype for function 'free_huge_page_to_dhugetlb_pool' [-Wmissing-prototypes] 1370 | void free_huge_page_to_dhugetlb_pool(struct page *page, bool restore_reserve) | ^ mm/hugetlb.c:1370:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1370 | void free_huge_page_to_dhugetlb_pool(struct page *page, bool restore_reserve) | ^ | static In file included from mm/hugetlb.c:14: include/linux/mempolicy.h:329:13: warning: unused function '__do_mbind' [-Wunused-function] 329 | static long __do_mbind(unsigned long start, unsigned long len, | ^~~~~~~~~~ 5 warnings generated. vim +/free_huge_page_to_dhugetlb_pool +1370 mm/hugetlb.c 1324 1325 #ifdef CONFIG_DYNAMIC_HUGETLB 1326 static void free_huge_page_to_dhugetlb_pool(struct page *page, 1327 bool restore_reserve) 1328 { 1329 struct hstate *h = page_hstate(page); 1330 struct dhugetlb_pool *hpool; 1331 1332 hpool = get_dhugetlb_pool_from_dhugetlb_pagelist(page); 1333 if (unlikely(!hpool)) { 1334 pr_err("dhugetlb: free error: get hpool failed\n"); 1335 return; 1336 } 1337 1338 spin_lock(&hpool->lock); 1339 ClearPagePool(page); 1340 set_compound_page_dtor(page, NULL_COMPOUND_DTOR); 1341 if (!hstate_is_gigantic(h)) { 1342 list_add(&page->lru, &hpool->dhugetlb_2M_freelists); 1343 hpool->free_reserved_2M++; 1344 hpool->used_2M--; 1345 if (restore_reserve) { 1346 hpool->mmap_reserved_2M++; 1347 trace_dhugetlb_acct_memory(hpool, 1348 hpool->mmap_reserved_2M, 1349 DHUGETLB_RESV_2M); 1350 } 1351 trace_dhugetlb_alloc_free(hpool, page, hpool->free_reserved_2M, 1352 DHUGETLB_FREE_2M); 1353 } else { 1354 list_add(&page->lru, &hpool->dhugetlb_1G_freelists); 1355 hpool->free_reserved_1G++; 1356 hpool->used_1G--; 1357 if (restore_reserve) { 1358 hpool->mmap_reserved_1G++; 1359 trace_dhugetlb_acct_memory(hpool, 1360 hpool->mmap_reserved_1G, 1361 DHUGETLB_RESV_1G); 1362 } 1363 trace_dhugetlb_alloc_free(hpool, page, hpool->free_reserved_1G, 1364 DHUGETLB_FREE_1G); 1365 } 1366 spin_unlock(&hpool->lock); 1367 dhugetlb_pool_put(hpool); 1368 } 1369 #else > 1370 void free_huge_page_to_dhugetlb_pool(struct page *page, bool restore_reserve) 1371 { 1372 } 1373 #endif 1374 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1418/1418] mm/.tmp_ioremap.o: warning: objtool: missing symbol for section .text
by kernel test robot 08 Feb '25

08 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: 004cface9c1c0b6351473934a4ce452193e05b07 [1418/1418] mm: Move vmap_range from mm/ioremap.c to mm/vmalloc.c config: x86_64-buildonly-randconfig-004-20250207 (https://download.01.org/0day-ci/archive/20250208/202502082225.bZGoGhTq-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082225.bZGoGhTq-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082225.bZGoGhTq-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/.tmp_ioremap.o: warning: objtool: missing symbol for section .text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1899/1899] mm/memcontrol.c:4428:12: warning: 'mem_cgroup_check_swap_for_v1' defined but not used
by kernel test robot 08 Feb '25

08 Feb '25

Hi Liu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 96ebabc25b2677a2a225de204946e424cf3887c1 commit: a095a940f784db58ea4e87df361f9a4fd0dd977f [1899/1899] memcg: add restrict to swap to cgroup1 config: x86_64-buildonly-randconfig-001-20250207 (https://download.01.org/0day-ci/archive/20250208/202502082247.kdBxrDeT-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082247.kdBxrDeT-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082247.kdBxrDeT-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/memcontrol.c:4428:12: warning: 'mem_cgroup_check_swap_for_v1' defined but not used [-Wunused-function] 4428 | static int mem_cgroup_check_swap_for_v1(struct folio *folio, swp_entry_t entry) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/mem_cgroup_check_swap_for_v1 +4428 mm/memcontrol.c 4427 > 4428 static int mem_cgroup_check_swap_for_v1(struct folio *folio, swp_entry_t entry) 4429 { 4430 return 0; 4431 } 4432 #endif 4433 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1418/1418] mm/memcontrol.c:432:54: warning: array subscript nid is outside array bounds of 'struct mem_cgroup_per_node *[0]'
by kernel test robot 08 Feb '25

08 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: cc7cb040bd0afe96f1da94c9f21eda5a986510a5 commit: fae91d6d8be5e20c47e459dbeb3d43bd5f9486f4 [1418/1418] mm/list_lru.c: set bit in memcg shrinker bitmap on first list_lru item appearance config: arm64-randconfig-002-20250207 (https://download.01.org/0day-ci/archive/20250208/202502082031.V2tZWUQg-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502082031.V2tZWUQg-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502082031.V2tZWUQg-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from include/linux/page_counter.h:6, from mm/memcontrol.c:34: mm/memcontrol.c: In function 'mem_cgroup_get_max': include/linux/kernel.h:845:45: warning: comparison of unsigned expression in '< 0' is always false [-Wtype-limits] 845 | #define min(x, y) __careful_cmp(x, y, <) | ^ include/linux/kernel.h:828:30: note: in definition of macro '__cmp' 828 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^~ include/linux/kernel.h:845:25: note: in expansion of macro '__careful_cmp' 845 | #define min(x, y) __careful_cmp(x, y, <) | ^~~~~~~~~~~~~ mm/memcontrol.c:1365:28: note: in expansion of macro 'min' 1365 | swap_max = min(swap_max, (unsigned long)total_swap_pages); | ^~~ In file included from mm/memcontrol.c:35: In function 'mem_cgroup_nodeinfo', inlined from 'invalidate_reclaim_iterators' at mm/memcontrol.c:1042:9, inlined from 'mem_cgroup_css_released' at mm/memcontrol.c:4526:2: include/linux/memcontrol.h:352:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 352 | return memcg->nodeinfo[nid]; | ~~~~~~~~~~~~~~~^~~~~ include/linux/memcontrol.h: In function 'mem_cgroup_css_released': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ In function 'free_mem_cgroup_per_node_info', inlined from '__mem_cgroup_free' at mm/memcontrol.c:4353:3: mm/memcontrol.c:4339:57: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 4339 | struct mem_cgroup_per_node *pn = memcg->nodeinfo[node]; | ~~~~~~~~~~~~~~~^~~~~~ include/linux/memcontrol.h: In function '__mem_cgroup_free': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ In function 'alloc_mem_cgroup_per_node_info', inlined from 'mem_cgroup_alloc' at mm/memcontrol.c:4388:7: mm/memcontrol.c:4333:24: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 4333 | memcg->nodeinfo[node] = pn; | ~~~~~~~~~~~~~~~^~~~~~ include/linux/memcontrol.h: In function 'mem_cgroup_alloc': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ In file included from include/linux/compiler.h:245, from arch/arm64/include/asm/atomic.h:23, from include/linux/atomic.h:7, from include/linux/page_counter.h:5: In function 'memcg_alloc_shrinker_maps', inlined from 'mem_cgroup_css_online' at mm/memcontrol.c:4485:6: mm/memcontrol.c:391:51: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 391 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, map); | ~~~~~~~~~~~~~~~^~~~~ arch/arm64/include/asm/barrier.h:95:42: note: in definition of macro '__smp_store_release' 95 | : "=Q" (*p) \ | ^ include/linux/rcupdate.h:411:17: note: in expansion of macro 'smp_store_release' 411 | smp_store_release(&p, RCU_INITIALIZER((typeof(p))_r_a_p__v)); \ | ^~~~~~~~~~~~~~~~~ mm/memcontrol.c:391:17: note: in expansion of macro 'rcu_assign_pointer' 391 | rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, map); | ^~~~~~~~~~~~~~~~~~ include/linux/memcontrol.h: In function 'mem_cgroup_css_online': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ mm/memcontrol.c: In function 'memcg_set_shrinker_bit': >> mm/memcontrol.c:432:54: warning: array subscript nid is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 432 | map = rcu_dereference(memcg->nodeinfo[nid]->shrinker_map); | ~~~~~~~~~~~~~~~^~~~~ include/linux/compiler.h:252:36: note: in definition of macro '__READ_ONCE' 252 | __read_once_size(&(x), __u.__c, sizeof(x)); \ | ^ include/linux/rcupdate.h:349:55: note: in expansion of macro 'READ_ONCE' 349 | typeof(*p) *________p1 = (typeof(*p) *__force)READ_ONCE(p); \ | ^~~~~~~~~ include/linux/rcupdate.h:486:9: note: in expansion of macro '__rcu_dereference_check' 486 | __rcu_dereference_check((p), (c) || rcu_read_lock_held(), __rcu) | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/rcupdate.h:544:28: note: in expansion of macro 'rcu_dereference_check' 544 | #define rcu_dereference(p) rcu_dereference_check(p, 0) | ^~~~~~~~~~~~~~~~~~~~~ mm/memcontrol.c:432:23: note: in expansion of macro 'rcu_dereference' 432 | map = rcu_dereference(memcg->nodeinfo[nid]->shrinker_map); | ^~~~~~~~~~~~~~~ include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ In function 'mem_cgroup_nodeinfo', inlined from 'mem_cgroup_lruvec' at include/linux/memcontrol.h:375:7, inlined from 'mem_cgroup_node_nr_lru_pages' at mm/memcontrol.c:722:26: include/linux/memcontrol.h:352:31: warning: array subscript <unknown> is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 352 | return memcg->nodeinfo[nid]; | ~~~~~~~~~~~~~~~^~~~~ include/linux/memcontrol.h: In function 'mem_cgroup_node_nr_lru_pages': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ In function 'mem_cgroup_nodeinfo', inlined from 'mem_cgroup_iter' at mm/memcontrol.c:937:8: include/linux/memcontrol.h:352:31: warning: array subscript <unknown> is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 352 | return memcg->nodeinfo[nid]; | ~~~~~~~~~~~~~~~^~~~~ include/linux/memcontrol.h: In function 'mem_cgroup_iter': include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ mm/memcontrol.c: In function '__mem_cgroup_threshold': mm/memcontrol.c:3473:45: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3473 | for (; i >= 0 && unlikely(t->entries[i].threshold > usage); i--) | ~~~~~~~~~~^~~ include/linux/compiler.h:77:45: note: in definition of macro 'unlikely' 77 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3474:42: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3474 | eventfd_signal(t->entries[i].eventfd, 1); | ~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3485:50: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3485 | for (; i < t->size && unlikely(t->entries[i].threshold <= usage); i++) | ~~~~~~~~~~^~~ include/linux/compiler.h:77:45: note: in definition of macro 'unlikely' 77 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3486:42: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3486 | eventfd_signal(t->entries[i].eventfd, 1); | ~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c: In function 'memcg_check_events.isra': mm/memcontrol.c:502:31: warning: array subscript 0 is outside array bounds of 'struct mem_cgroup_per_node *[0]' [-Warray-bounds=] 502 | return memcg->nodeinfo[nid]; | ~~~~~~~~~~~~~~~^~~~~ include/linux/memcontrol.h:309:37: note: while referencing 'nodeinfo' 309 | struct mem_cgroup_per_node *nodeinfo[0]; | ^~~~~~~~ mm/memcontrol.c: In function '__mem_cgroup_usage_unregister_event': mm/memcontrol.c:3680:49: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3680 | if (thresholds->primary->entries[i].eventfd == eventfd) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3683:63: warning: array subscript i is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3683 | new->entries[j] = thresholds->primary->entries[i]; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3683:29: warning: array subscript j is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3683 | new->entries[j] = thresholds->primary->entries[i]; | ~~~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' 162 | struct mem_cgroup_threshold entries[0]; | ^~~~~~~ mm/memcontrol.c:3684:33: warning: array subscript j is outside array bounds of 'struct mem_cgroup_threshold[0]' [-Warray-bounds=] 3684 | if (new->entries[j].threshold <= usage) { | ~~~~~~~~~~~~^~~ include/linux/memcontrol.h:162:37: note: while referencing 'entries' vim +432 mm/memcontrol.c 373 374 static int memcg_alloc_shrinker_maps(struct mem_cgroup *memcg) 375 { 376 struct memcg_shrinker_map *map; 377 int nid, size, ret = 0; 378 379 if (mem_cgroup_is_root(memcg)) 380 return 0; 381 382 mutex_lock(&memcg_shrinker_map_mutex); 383 size = memcg_shrinker_map_size; 384 for_each_node(nid) { 385 map = kvzalloc(sizeof(*map) + size, GFP_KERNEL); 386 if (!map) { 387 memcg_free_shrinker_maps(memcg); 388 ret = -ENOMEM; 389 break; 390 } > 391 rcu_assign_pointer(memcg->nodeinfo[nid]->shrinker_map, map); 392 } 393 mutex_unlock(&memcg_shrinker_map_mutex); 394 395 return ret; 396 } 397 398 int memcg_expand_shrinker_maps(int new_id) 399 { 400 int size, old_size, ret = 0; 401 struct mem_cgroup *memcg; 402 403 size = DIV_ROUND_UP(new_id + 1, BITS_PER_LONG) * sizeof(unsigned long); 404 old_size = memcg_shrinker_map_size; 405 if (size <= old_size) 406 return 0; 407 408 mutex_lock(&memcg_shrinker_map_mutex); 409 if (!root_mem_cgroup) 410 goto unlock; 411 412 for_each_mem_cgroup(memcg) { 413 if (mem_cgroup_is_root(memcg)) 414 continue; 415 ret = memcg_expand_one_shrinker_map(memcg, size, old_size); 416 if (ret) 417 goto unlock; 418 } 419 unlock: 420 if (!ret) 421 memcg_shrinker_map_size = size; 422 mutex_unlock(&memcg_shrinker_map_mutex); 423 return ret; 424 } 425 426 void memcg_set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id) 427 { 428 if (shrinker_id >= 0 && memcg && !mem_cgroup_is_root(memcg)) { 429 struct memcg_shrinker_map *map; 430 431 rcu_read_lock(); > 432 map = rcu_dereference(memcg->nodeinfo[nid]->shrinker_map); 433 set_bit(shrinker_id, map->map); 434 rcu_read_unlock(); 435 } 436 } 437 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 1899/1899] mm/dynamic_pool.c:1612:51: warning: variable 'ret' is uninitialized when used here
by kernel test robot 08 Feb '25

08 Feb '25

Hi Liu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 8673e7441a723dd5e885e372a4d0351658286304 commit: cf98ffbc116bc49dc4506c68e20b02e26519ad35 [1899/1899] mm/dynamic_pool: fill dpool with pagelist config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250208/202502081751.f1v777Vf-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502081751.f1v777Vf-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502081751.f1v777Vf-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/dynamic_pool.c:10: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2181: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ mm/dynamic_pool.c:836:6: warning: variable 'type' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] 836 | if (!dpool->online) | ^~~~~~~~~~~~~~ mm/dynamic_pool.c:865:36: note: uninitialized use occurs here 865 | trace_dpool_alloc_hugepage(dpool, type, folio, pool->free_huge_pages, | ^~~~ mm/dynamic_pool.c:836:2: note: remove the 'if' if its condition is always false 836 | if (!dpool->online) | ^~~~~~~~~~~~~~~~~~~ 837 | goto unlock; | ~~~~~~~~~~~ mm/dynamic_pool.c:826:10: note: initialize the variable 'type' to silence this warning 826 | int type; | ^ | = 0 mm/dynamic_pool.c:836:6: warning: variable 'pool' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] 836 | if (!dpool->online) | ^~~~~~~~~~~~~~ mm/dynamic_pool.c:865:49: note: uninitialized use occurs here 865 | trace_dpool_alloc_hugepage(dpool, type, folio, pool->free_huge_pages, | ^~~~ mm/dynamic_pool.c:836:2: note: remove the 'if' if its condition is always false 836 | if (!dpool->online) | ^~~~~~~~~~~~~~~~~~~ 837 | goto unlock; | ~~~~~~~~~~~ mm/dynamic_pool.c:823:25: note: initialize the variable 'pool' to silence this warning 823 | struct pages_pool *pool; | ^ | = NULL >> mm/dynamic_pool.c:1612:51: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] 1612 | pr_err("init failed, create failed. ret: %d\n", ret); | ^~~ include/linux/printk.h:498:33: note: expanded from macro 'pr_err' 498 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/printk.h:455:60: note: expanded from macro 'printk' 455 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap' 427 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ mm/dynamic_pool.c:1586:9: note: initialize the variable 'ret' to silence this warning 1586 | int ret; | ^ | = 0 8 warnings generated. vim +/ret +1612 mm/dynamic_pool.c 1582 1583 int dpool_init(struct dpool_info *arg) 1584 { 1585 struct dynamic_pool *dpool; 1586 int ret; 1587 1588 if (!dpool_enabled) 1589 return -EINVAL; 1590 1591 if (!arg || !arg->memcg || arg->range_cnt <= 0) { 1592 pr_err("init failed, arg is invalid\n"); 1593 return -EINVAL; 1594 } 1595 1596 mutex_lock(&dpool_mutex); 1597 1598 if (dpool_global_pool || arg->memcg->dpool) { 1599 pr_err("init failed, dpool is already exist\n"); 1600 ret = -EINVAL; 1601 goto unlock; 1602 } 1603 1604 if (!(arg->memcg->css.cgroup->self.flags & CSS_ONLINE)) { 1605 pr_err("init failed, memcg is not online\n"); 1606 ret = -EINVAL; 1607 goto unlock; 1608 } 1609 1610 dpool = dpool_create(arg->memcg, &pagelist_dpool_ops); 1611 if (!dpool) { > 1612 pr_err("init failed, create failed. ret: %d\n", ret); 1613 ret = -ENOMEM; 1614 goto unlock; 1615 } 1616 1617 dpool_global_pool = dpool; 1618 1619 BUG_ON(!dpool->ops->fill_pool); 1620 ret = dpool->ops->fill_pool(dpool, arg); 1621 if (ret) 1622 dpool_put(dpool); 1623 1624 unlock: 1625 mutex_unlock(&dpool_mutex); 1626 1627 return ret; 1628 } 1629 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 2729/2729] mm/khugepaged.c:1646: warning: Function parameter or member 'reliable' not described in 'collapse_file'
by kernel test robot 08 Feb '25

08 Feb '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: d446fe23ba300d0cceac22dff0e7e9a8d21646e1 commit: 6263994761a3d3ad6e5fa3beff9ca8cbd38d3bf3 [2729/2729] mm: thp: Add memory reliable support for hugepaged collapse config: x86_64-buildonly-randconfig-002-20250208 (https://download.01.org/0day-ci/archive/20250208/202502081316.Lfy85pbg-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250208/202502081316.Lfy85pbg-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202502081316.Lfy85pbg-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/khugepaged.c:102: warning: Function parameter or member 'nr_pte_mapped_thp' not described in 'mm_slot' mm/khugepaged.c:102: warning: Function parameter or member 'pte_mapped_thp' not described in 'mm_slot' mm/khugepaged.c:1443: warning: Function parameter or member 'mm' not described in 'collapse_pte_mapped_thp' mm/khugepaged.c:1443: warning: Function parameter or member 'addr' not described in 'collapse_pte_mapped_thp' mm/khugepaged.c:1646: warning: Function parameter or member 'mm' not described in 'collapse_file' mm/khugepaged.c:1646: warning: Function parameter or member 'file' not described in 'collapse_file' mm/khugepaged.c:1646: warning: Function parameter or member 'start' not described in 'collapse_file' mm/khugepaged.c:1646: warning: Function parameter or member 'hpage' not described in 'collapse_file' mm/khugepaged.c:1646: warning: Function parameter or member 'node' not described in 'collapse_file' >> mm/khugepaged.c:1646: warning: Function parameter or member 'reliable' not described in 'collapse_file' vim +1646 mm/khugepaged.c f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1623 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1624 /** 99cb0dbd47a15d Song Liu 2019-09-23 1625 * collapse_file - collapse filemap/tmpfs/shmem pages into huge one. f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1626 * f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1627 * Basic scheme is simple, details are more complex: 87c460a0bded56 Hugh Dickins 2018-11-30 1628 * - allocate and lock a new huge page; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1629 * - scan page cache replacing old pages with the new one 99cb0dbd47a15d Song Liu 2019-09-23 1630 * + swap/gup in pages if necessary; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1631 * + fill in gaps; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1632 * + keep old pages around in case rollback is required; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1633 * - if replacing succeeds: f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1634 * + copy data over; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1635 * + free old pages; 87c460a0bded56 Hugh Dickins 2018-11-30 1636 * + unlock huge page; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1637 * - if replacing failed; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1638 * + put all pages back and unfreeze them; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1639 * + restore gaps in the page cache; 87c460a0bded56 Hugh Dickins 2018-11-30 1640 * + unlock and free huge page; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1641 */ 579c571e2efdb8 Song Liu 2019-09-23 1642 static void collapse_file(struct mm_struct *mm, 579c571e2efdb8 Song Liu 2019-09-23 1643 struct file *file, pgoff_t start, 6263994761a3d3 Ma Wupeng 2022-11-11 1644 struct page **hpage, int node, 6263994761a3d3 Ma Wupeng 2022-11-11 1645 bool reliable) f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 @1646 { 579c571e2efdb8 Song Liu 2019-09-23 1647 struct address_space *mapping = file->f_mapping; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1648 gfp_t gfp; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1649 struct page *new_page; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1650 pgoff_t index, end = start + HPAGE_PMD_NR; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1651 LIST_HEAD(pagelist); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1652 XA_STATE_ORDER(xas, &mapping->i_pages, start, HPAGE_PMD_ORDER); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1653 int nr_none = 0, result = SCAN_SUCCEED; 99cb0dbd47a15d Song Liu 2019-09-23 1654 bool is_shmem = shmem_file(file); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1655 99cb0dbd47a15d Song Liu 2019-09-23 1656 VM_BUG_ON(!IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && !is_shmem); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1657 VM_BUG_ON(start & (HPAGE_PMD_NR - 1)); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1658 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1659 /* Only allocate from the target node */ 41b6167e8f746b Michal Hocko 2017-01-10 1660 gfp = alloc_hugepage_khugepaged_gfpmask() | __GFP_THISNODE; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1661 6263994761a3d3 Ma Wupeng 2022-11-11 1662 if (reliable) 6263994761a3d3 Ma Wupeng 2022-11-11 1663 gfp |= GFP_RELIABLE; 6263994761a3d3 Ma Wupeng 2022-11-11 1664 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1665 new_page = khugepaged_alloc_page(hpage, gfp, node); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1666 if (!new_page) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1667 result = SCAN_ALLOC_HUGE_PAGE_FAIL; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1668 goto out; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1669 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1670 d9eb1ea2bf8734 Johannes Weiner 2020-06-03 1671 if (unlikely(mem_cgroup_charge(new_page, mm, gfp))) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1672 result = SCAN_CGROUP_CHARGE_FAIL; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1673 goto out; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1674 } 9d82c69438d0df Johannes Weiner 2020-06-03 1675 count_memcg_page_event(new_page, THP_COLLAPSE_ALLOC); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1676 95feeabb77149f Hugh Dickins 2018-11-30 1677 /* This will be less messy when we use multi-index entries */ 95feeabb77149f Hugh Dickins 2018-11-30 1678 do { 95feeabb77149f Hugh Dickins 2018-11-30 1679 xas_lock_irq(&xas); 95feeabb77149f Hugh Dickins 2018-11-30 1680 xas_create_range(&xas); 95feeabb77149f Hugh Dickins 2018-11-30 1681 if (!xas_error(&xas)) 95feeabb77149f Hugh Dickins 2018-11-30 1682 break; 95feeabb77149f Hugh Dickins 2018-11-30 1683 xas_unlock_irq(&xas); 95feeabb77149f Hugh Dickins 2018-11-30 1684 if (!xas_nomem(&xas, GFP_KERNEL)) { 95feeabb77149f Hugh Dickins 2018-11-30 1685 result = SCAN_FAIL; 95feeabb77149f Hugh Dickins 2018-11-30 1686 goto out; 95feeabb77149f Hugh Dickins 2018-11-30 1687 } 95feeabb77149f Hugh Dickins 2018-11-30 1688 } while (1); 95feeabb77149f Hugh Dickins 2018-11-30 1689 042a30824871fa Hugh Dickins 2018-11-30 1690 __SetPageLocked(new_page); 99cb0dbd47a15d Song Liu 2019-09-23 1691 if (is_shmem) 042a30824871fa Hugh Dickins 2018-11-30 1692 __SetPageSwapBacked(new_page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1693 new_page->index = start; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1694 new_page->mapping = mapping; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1695 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1696 /* 87c460a0bded56 Hugh Dickins 2018-11-30 1697 * At this point the new_page is locked and not up-to-date. 87c460a0bded56 Hugh Dickins 2018-11-30 1698 * It's safe to insert it into the page cache, because nobody would 87c460a0bded56 Hugh Dickins 2018-11-30 1699 * be able to map it or use it in another way until we unlock it. f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1700 */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1701 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1702 xas_set(&xas, start); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1703 for (index = start; index < end; index++) { 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1704 struct page *page = xas_next(&xas); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1705 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1706 VM_BUG_ON(index != xas.xa_index); 99cb0dbd47a15d Song Liu 2019-09-23 1707 if (is_shmem) { 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1708 if (!page) { 701270fa193aad Hugh Dickins 2018-11-30 1709 /* 99cb0dbd47a15d Song Liu 2019-09-23 1710 * Stop if extent has been truncated or 99cb0dbd47a15d Song Liu 2019-09-23 1711 * hole-punched, and is now completely 99cb0dbd47a15d Song Liu 2019-09-23 1712 * empty. 701270fa193aad Hugh Dickins 2018-11-30 1713 */ 701270fa193aad Hugh Dickins 2018-11-30 1714 if (index == start) { 701270fa193aad Hugh Dickins 2018-11-30 1715 if (!xas_next_entry(&xas, end - 1)) { 701270fa193aad Hugh Dickins 2018-11-30 1716 result = SCAN_TRUNCATED; 042a30824871fa Hugh Dickins 2018-11-30 1717 goto xa_locked; 701270fa193aad Hugh Dickins 2018-11-30 1718 } 701270fa193aad Hugh Dickins 2018-11-30 1719 xas_set(&xas, index); 701270fa193aad Hugh Dickins 2018-11-30 1720 } 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1721 if (!shmem_charge(mapping->host, 1)) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1722 result = SCAN_FAIL; 042a30824871fa Hugh Dickins 2018-11-30 1723 goto xa_locked; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1724 } 4101196b19d7f9 Matthew Wilcox (Oracle 2019-09-23 1725) xas_store(&xas, new_page); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1726 nr_none++; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1727 continue; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1728 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1729 3159f943aafdba Matthew Wilcox 2017-11-03 1730 if (xa_is_value(page) || !PageUptodate(page)) { 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1731 xas_unlock_irq(&xas); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1732 /* swap in or instantiate fallocated page */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1733 if (shmem_getpage(mapping->host, index, &page, f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1734 SGP_NOHUGE)) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1735 result = SCAN_FAIL; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1736 goto xa_unlocked; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1737 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1738 } else if (trylock_page(page)) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1739 get_page(page); 042a30824871fa Hugh Dickins 2018-11-30 1740 xas_unlock_irq(&xas); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1741 } else { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1742 result = SCAN_PAGE_LOCK; 042a30824871fa Hugh Dickins 2018-11-30 1743 goto xa_locked; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1744 } 99cb0dbd47a15d Song Liu 2019-09-23 1745 } else { /* !is_shmem */ 99cb0dbd47a15d Song Liu 2019-09-23 1746 if (!page || xa_is_value(page)) { 99cb0dbd47a15d Song Liu 2019-09-23 1747 xas_unlock_irq(&xas); 99cb0dbd47a15d Song Liu 2019-09-23 1748 page_cache_sync_readahead(mapping, &file->f_ra, 99cb0dbd47a15d Song Liu 2019-09-23 1749 file, index, e5a59d308f52bb David Howells 2020-09-04 1750 end - index); 99cb0dbd47a15d Song Liu 2019-09-23 1751 /* drain pagevecs to help isolate_lru_page() */ 99cb0dbd47a15d Song Liu 2019-09-23 1752 lru_add_drain(); 99cb0dbd47a15d Song Liu 2019-09-23 1753 page = find_lock_page(mapping, index); 99cb0dbd47a15d Song Liu 2019-09-23 1754 if (unlikely(page == NULL)) { 99cb0dbd47a15d Song Liu 2019-09-23 1755 result = SCAN_FAIL; 99cb0dbd47a15d Song Liu 2019-09-23 1756 goto xa_unlocked; 99cb0dbd47a15d Song Liu 2019-09-23 1757 } 75f360696ce9d8 Song Liu 2019-11-30 1758 } else if (PageDirty(page)) { 75f360696ce9d8 Song Liu 2019-11-30 1759 /* 75f360696ce9d8 Song Liu 2019-11-30 1760 * khugepaged only works on read-only fd, 75f360696ce9d8 Song Liu 2019-11-30 1761 * so this page is dirty because it hasn't 75f360696ce9d8 Song Liu 2019-11-30 1762 * been flushed since first write. There 75f360696ce9d8 Song Liu 2019-11-30 1763 * won't be new dirty pages. 75f360696ce9d8 Song Liu 2019-11-30 1764 * 75f360696ce9d8 Song Liu 2019-11-30 1765 * Trigger async flush here and hope the 75f360696ce9d8 Song Liu 2019-11-30 1766 * writeback is done when khugepaged 75f360696ce9d8 Song Liu 2019-11-30 1767 * revisits this page. 75f360696ce9d8 Song Liu 2019-11-30 1768 * 75f360696ce9d8 Song Liu 2019-11-30 1769 * This is a one-off situation. We are not 75f360696ce9d8 Song Liu 2019-11-30 1770 * forcing writeback in loop. 75f360696ce9d8 Song Liu 2019-11-30 1771 */ 75f360696ce9d8 Song Liu 2019-11-30 1772 xas_unlock_irq(&xas); 75f360696ce9d8 Song Liu 2019-11-30 1773 filemap_flush(mapping); 75f360696ce9d8 Song Liu 2019-11-30 1774 result = SCAN_FAIL; 75f360696ce9d8 Song Liu 2019-11-30 1775 goto xa_unlocked; ca1ab8b4a53297 Rongwei Wang 2021-11-15 1776 } else if (PageWriteback(page)) { ca1ab8b4a53297 Rongwei Wang 2021-11-15 1777 xas_unlock_irq(&xas); ca1ab8b4a53297 Rongwei Wang 2021-11-15 1778 result = SCAN_FAIL; ca1ab8b4a53297 Rongwei Wang 2021-11-15 1779 goto xa_unlocked; 99cb0dbd47a15d Song Liu 2019-09-23 1780 } else if (trylock_page(page)) { 99cb0dbd47a15d Song Liu 2019-09-23 1781 get_page(page); 99cb0dbd47a15d Song Liu 2019-09-23 1782 xas_unlock_irq(&xas); 99cb0dbd47a15d Song Liu 2019-09-23 1783 } else { 99cb0dbd47a15d Song Liu 2019-09-23 1784 result = SCAN_PAGE_LOCK; 99cb0dbd47a15d Song Liu 2019-09-23 1785 goto xa_locked; 99cb0dbd47a15d Song Liu 2019-09-23 1786 } 99cb0dbd47a15d Song Liu 2019-09-23 1787 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1788 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1789 /* b93b016313b3ba Matthew Wilcox 2018-04-10 1790 * The page must be locked, so we can drop the i_pages lock f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1791 * without racing with truncate. f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1792 */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1793 VM_BUG_ON_PAGE(!PageLocked(page), page); 4655e5e5f38726 Song Liu 2019-11-15 1794 4655e5e5f38726 Song Liu 2019-11-15 1795 /* make sure the page is up to date */ 4655e5e5f38726 Song Liu 2019-11-15 1796 if (unlikely(!PageUptodate(page))) { 4655e5e5f38726 Song Liu 2019-11-15 1797 result = SCAN_FAIL; 4655e5e5f38726 Song Liu 2019-11-15 1798 goto out_unlock; 4655e5e5f38726 Song Liu 2019-11-15 1799 } 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1800 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1801 /* 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1802 * If file was truncated then extended, or hole-punched, before 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1803 * we locked the first page, then a THP might be there already. 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1804 */ 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1805 if (PageTransCompound(page)) { 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1806 result = SCAN_PAGE_COMPOUND; 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1807 goto out_unlock; 06a5e1268a5fb9 Hugh Dickins 2018-11-30 1808 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1809 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1810 if (page_mapping(page) != mapping) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1811 result = SCAN_TRUNCATED; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1812 goto out_unlock; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1813 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1814 ca1ab8b4a53297 Rongwei Wang 2021-11-15 1815 if (!is_shmem && (PageDirty(page) || ca1ab8b4a53297 Rongwei Wang 2021-11-15 1816 PageWriteback(page))) { 4655e5e5f38726 Song Liu 2019-11-15 1817 /* 4655e5e5f38726 Song Liu 2019-11-15 1818 * khugepaged only works on read-only fd, so this 4655e5e5f38726 Song Liu 2019-11-15 1819 * page is dirty because it hasn't been flushed 4655e5e5f38726 Song Liu 2019-11-15 1820 * since first write. 4655e5e5f38726 Song Liu 2019-11-15 1821 */ 4655e5e5f38726 Song Liu 2019-11-15 1822 result = SCAN_FAIL; 4655e5e5f38726 Song Liu 2019-11-15 1823 goto out_unlock; 4655e5e5f38726 Song Liu 2019-11-15 1824 } 4655e5e5f38726 Song Liu 2019-11-15 1825 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1826 if (isolate_lru_page(page)) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1827 result = SCAN_DEL_PAGE_LRU; 042a30824871fa Hugh Dickins 2018-11-30 1828 goto out_unlock; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1829 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1830 99cb0dbd47a15d Song Liu 2019-09-23 1831 if (page_has_private(page) && 99cb0dbd47a15d Song Liu 2019-09-23 1832 !try_to_release_page(page, GFP_KERNEL)) { 99cb0dbd47a15d Song Liu 2019-09-23 1833 result = SCAN_PAGE_HAS_PRIVATE; 2f33a706027c94 Hugh Dickins 2020-05-27 1834 putback_lru_page(page); 99cb0dbd47a15d Song Liu 2019-09-23 1835 goto out_unlock; 99cb0dbd47a15d Song Liu 2019-09-23 1836 } 99cb0dbd47a15d Song Liu 2019-09-23 1837 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1838 if (page_mapped(page)) 977fbdcd5986c9 Matthew Wilcox 2018-01-31 1839 unmap_mapping_pages(mapping, index, 1, false); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1840 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1841 xas_lock_irq(&xas); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1842 xas_set(&xas, index); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1843 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1844 VM_BUG_ON_PAGE(page != xas_load(&xas), page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1845 VM_BUG_ON_PAGE(page_mapped(page), page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1846 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1847 /* f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1848 * The page is expected to have page_count() == 3: f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1849 * - we hold a pin on it; 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1850 * - one reference from page cache; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1851 * - one from isolate_lru_page; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1852 */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1853 if (!page_ref_freeze(page, 3)) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1854 result = SCAN_PAGE_COUNT; 042a30824871fa Hugh Dickins 2018-11-30 1855 xas_unlock_irq(&xas); 042a30824871fa Hugh Dickins 2018-11-30 1856 putback_lru_page(page); 042a30824871fa Hugh Dickins 2018-11-30 1857 goto out_unlock; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1858 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1859 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1860 /* f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1861 * Add the page to the list to be able to undo the collapse if f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1862 * something go wrong. f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1863 */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1864 list_add_tail(&page->lru, &pagelist); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1865 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1866 /* Finally, replace with the new page. */ 4101196b19d7f9 Matthew Wilcox (Oracle 2019-09-23 1867) xas_store(&xas, new_page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1868 continue; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1869 out_unlock: f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1870 unlock_page(page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1871 put_page(page); 042a30824871fa Hugh Dickins 2018-11-30 1872 goto xa_unlocked; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1873 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1874 99cb0dbd47a15d Song Liu 2019-09-23 1875 if (is_shmem) 042a30824871fa Hugh Dickins 2018-11-30 1876 __inc_node_page_state(new_page, NR_SHMEM_THPS); 09d91cda0e8207 Song Liu 2019-09-23 1877 else { 99cb0dbd47a15d Song Liu 2019-09-23 1878 __inc_node_page_state(new_page, NR_FILE_THPS); 09d91cda0e8207 Song Liu 2019-09-23 1879 filemap_nr_thps_inc(mapping); 09d91cda0e8207 Song Liu 2019-09-23 1880 } 99cb0dbd47a15d Song Liu 2019-09-23 1881 042a30824871fa Hugh Dickins 2018-11-30 1882 if (nr_none) { 9d82c69438d0df Johannes Weiner 2020-06-03 1883 __mod_lruvec_page_state(new_page, NR_FILE_PAGES, nr_none); 99cb0dbd47a15d Song Liu 2019-09-23 1884 if (is_shmem) 9d82c69438d0df Johannes Weiner 2020-06-03 1885 __mod_lruvec_page_state(new_page, NR_SHMEM, nr_none); 042a30824871fa Hugh Dickins 2018-11-30 1886 } 042a30824871fa Hugh Dickins 2018-11-30 1887 042a30824871fa Hugh Dickins 2018-11-30 1888 xa_locked: 042a30824871fa Hugh Dickins 2018-11-30 1889 xas_unlock_irq(&xas); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1890 xa_unlocked: 042a30824871fa Hugh Dickins 2018-11-30 1891 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1892 if (result == SCAN_SUCCEED) { 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1893 struct page *page, *tmp; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1894 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1895 /* 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1896 * Replacing old pages with new one has succeeded, now we 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1897 * need to copy the content and free the old pages. f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1898 */ 2af8ff291848cc Hugh Dickins 2018-11-30 1899 index = start; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1900 list_for_each_entry_safe(page, tmp, &pagelist, lru) { 2af8ff291848cc Hugh Dickins 2018-11-30 1901 while (index < page->index) { 2af8ff291848cc Hugh Dickins 2018-11-30 1902 clear_highpage(new_page + (index % HPAGE_PMD_NR)); 2af8ff291848cc Hugh Dickins 2018-11-30 1903 index++; 2af8ff291848cc Hugh Dickins 2018-11-30 1904 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1905 copy_highpage(new_page + (page->index % HPAGE_PMD_NR), f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1906 page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1907 list_del(&page->lru); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1908 page->mapping = NULL; 042a30824871fa Hugh Dickins 2018-11-30 1909 page_ref_unfreeze(page, 1); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1910 ClearPageActive(page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1911 ClearPageUnevictable(page); 042a30824871fa Hugh Dickins 2018-11-30 1912 unlock_page(page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1913 put_page(page); 2af8ff291848cc Hugh Dickins 2018-11-30 1914 index++; 2af8ff291848cc Hugh Dickins 2018-11-30 1915 } 2af8ff291848cc Hugh Dickins 2018-11-30 1916 while (index < end) { 2af8ff291848cc Hugh Dickins 2018-11-30 1917 clear_highpage(new_page + (index % HPAGE_PMD_NR)); 2af8ff291848cc Hugh Dickins 2018-11-30 1918 index++; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1919 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1920 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1921 SetPageUptodate(new_page); 87c460a0bded56 Hugh Dickins 2018-11-30 1922 page_ref_add(new_page, HPAGE_PMD_NR - 1); 6058eaec816f29 Johannes Weiner 2020-06-03 1923 if (is_shmem) 99cb0dbd47a15d Song Liu 2019-09-23 1924 set_page_dirty(new_page); 6058eaec816f29 Johannes Weiner 2020-06-03 1925 lru_cache_add(new_page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1926 042a30824871fa Hugh Dickins 2018-11-30 1927 /* 042a30824871fa Hugh Dickins 2018-11-30 1928 * Remove pte page tables, so we can re-fault the page as huge. 042a30824871fa Hugh Dickins 2018-11-30 1929 */ 042a30824871fa Hugh Dickins 2018-11-30 1930 retract_page_tables(mapping, start); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1931 *hpage = NULL; 87aa752906ecf6 Yang Shi 2018-08-17 1932 87aa752906ecf6 Yang Shi 2018-08-17 1933 khugepaged_pages_collapsed++; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1934 } else { 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1935 struct page *page; aaa52e340073b7 Hugh Dickins 2018-11-30 1936 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1937 /* Something went wrong: roll back page cache changes */ 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1938 xas_lock_irq(&xas); aaa52e340073b7 Hugh Dickins 2018-11-30 1939 mapping->nrpages -= nr_none; 99cb0dbd47a15d Song Liu 2019-09-23 1940 99cb0dbd47a15d Song Liu 2019-09-23 1941 if (is_shmem) aaa52e340073b7 Hugh Dickins 2018-11-30 1942 shmem_uncharge(mapping->host, nr_none); aaa52e340073b7 Hugh Dickins 2018-11-30 1943 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1944 xas_set(&xas, start); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1945 xas_for_each(&xas, page, end - 1) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1946 page = list_first_entry_or_null(&pagelist, f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1947 struct page, lru); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1948 if (!page || xas.xa_index < page->index) { f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1949 if (!nr_none) f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1950 break; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1951 nr_none--; 59749e6ce53735 Johannes Weiner 2016-12-12 1952 /* Put holes back where they were */ 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1953 xas_store(&xas, NULL); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1954 continue; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1955 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1956 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1957 VM_BUG_ON_PAGE(page->index != xas.xa_index, page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1958 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1959 /* Unfreeze the page. */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1960 list_del(&page->lru); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1961 page_ref_unfreeze(page, 2); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1962 xas_store(&xas, page); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1963 xas_pause(&xas); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1964 xas_unlock_irq(&xas); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1965 unlock_page(page); 042a30824871fa Hugh Dickins 2018-11-30 1966 putback_lru_page(page); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1967 xas_lock_irq(&xas); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1968 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1969 VM_BUG_ON(nr_none); 77da9389b9d5f0 Matthew Wilcox 2017-12-04 1970 xas_unlock_irq(&xas); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1971 f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1972 new_page->mapping = NULL; f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1973 } 042a30824871fa Hugh Dickins 2018-11-30 1974 042a30824871fa Hugh Dickins 2018-11-30 1975 unlock_page(new_page); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1976 out: f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1977 VM_BUG_ON(!list_empty(&pagelist)); 9d82c69438d0df Johannes Weiner 2020-06-03 1978 if (!IS_ERR_OR_NULL(*hpage)) 9d82c69438d0df Johannes Weiner 2020-06-03 1979 mem_cgroup_uncharge(*hpage); f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1980 /* TODO: tracepoints */ f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1981 } f3f0e1d2150b2b Kirill A. Shutemov 2016-07-26 1982 :::::: The code at line 1646 was first introduced by commit :::::: f3f0e1d2150b2b99da2cbdfaad000089efe9bf30 khugepaged: add support of collapse for tmpfs/shmem pages :::::: TO: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10] pinmux: Use sequential access to access desc->pinmux data
by Zhang Kunbo 08 Feb '25

08 Feb '25

From: Mukesh Ojha <quic_mojha(a)quicinc.com> stable inclusion from stable-v6.6.66 commit 2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBIFR8 CVE: CVE-2024-47141 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e ] When two client of the same gpio call pinctrl_select_state() for the same functionality, we are seeing NULL pointer issue while accessing desc->mux_owner. Let's say two processes A, B executing in pin_request() for the same pin and process A updates the desc->mux_usecount but not yet updated the desc->mux_owner while process B see the desc->mux_usecount which got updated by A path and further executes strcmp and while accessing desc->mux_owner it crashes with NULL pointer. Serialize the access to mux related setting with a mutex lock. cpu0 (process A) cpu1(process B) pinctrl_select_state() { pinctrl_select_state() { pin_request() { pin_request() { ... .... } else { desc->mux_usecount++; desc->mux_usecount && strcmp(desc->mux_owner, owner)) { if (desc->mux_usecount > 1) return 0; desc->mux_owner = owner; } } Signed-off-by: Mukesh Ojha <quic_mojha(a)quicinc.com> Link: https://lore.kernel.org/20241014192930.1539673-1-quic_mojha@quicinc.com Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/pinctrl/pinmux.c [ Scope-based resource management is not merged yet (54da6a092431), so we lock the data-race region by hand ] Signed-off-by: Zhang Kunbo <zhangkunbo(a)huawei.com> --- drivers/pinctrl/core.c | 3 +++ drivers/pinctrl/core.h | 1 + drivers/pinctrl/pinmux.c | 49 ++++++++++++++++++++++++++++++++++------ 3 files changed, 46 insertions(+), 7 deletions(-) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index b7a6bab4ac01..118c4975c777 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -220,6 +220,9 @@ static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev, /* Set owner */ pindesc->pctldev = pctldev; +#ifdef CONFIG_PINMUX + mutex_init(&pindesc->mux_lock); +#endif /* Copy basic pin info */ if (pin->name) { diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h index 840103c40c14..f5e4ca19c17b 100644 --- a/drivers/pinctrl/core.h +++ b/drivers/pinctrl/core.h @@ -167,6 +167,7 @@ struct pin_desc { const char *mux_owner; const struct pinctrl_setting_mux *mux_setting; const char *gpio_owner; + struct mutex mux_lock; #endif }; diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index bab888fe3f8e..53fe25e9e864 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -27,6 +27,7 @@ #include <linux/pinctrl/pinmux.h> #include "core.h" #include "pinmux.h" +#include <linux/mutex.h> int pinmux_check_ops(struct pinctrl_dev *pctldev) { @@ -84,15 +85,21 @@ bool pinmux_can_be_used_for_gpio(struct pinctrl_dev *pctldev, unsigned pin) { struct pin_desc *desc = pin_desc_get(pctldev, pin); const struct pinmux_ops *ops = pctldev->desc->pmxops; + bool can; /* Can't inspect pin, assume it can be used */ if (!desc || !ops) return true; - if (ops->strict && desc->mux_usecount) + mutex_lock(&desc->mux_lock); + if (ops->strict && desc->mux_usecount) { + mutex_unlock(&desc->mux_lock); return false; + } - return !(ops->strict && !!desc->gpio_owner); + can = !(ops->strict && !!desc->gpio_owner); + mutex_unlock(&desc->mux_lock); + return can; } /** @@ -123,11 +130,13 @@ static int pin_request(struct pinctrl_dev *pctldev, dev_dbg(pctldev->dev, "request pin %d (%s) for %s\n", pin, desc->name, owner); + mutex_lock(&desc->mux_lock); if ((!gpio_range || ops->strict) && desc->mux_usecount && strcmp(desc->mux_owner, owner)) { dev_err(pctldev->dev, "pin %s already requested by %s; cannot claim for %s\n", desc->name, desc->mux_owner, owner); + mutex_unlock(&desc->mux_lock); goto out; } @@ -135,6 +144,7 @@ static int pin_request(struct pinctrl_dev *pctldev, dev_err(pctldev->dev, "pin %s already requested by %s; cannot claim for %s\n", desc->name, desc->gpio_owner, owner); + mutex_unlock(&desc->mux_lock); goto out; } @@ -142,11 +152,14 @@ static int pin_request(struct pinctrl_dev *pctldev, desc->gpio_owner = owner; } else { desc->mux_usecount++; - if (desc->mux_usecount > 1) + if (desc->mux_usecount > 1) { + mutex_unlock(&desc->mux_lock); return 0; + } desc->mux_owner = owner; } + mutex_unlock(&desc->mux_lock); /* Let each pin increase references to this module */ if (!try_module_get(pctldev->owner)) { @@ -176,6 +189,7 @@ static int pin_request(struct pinctrl_dev *pctldev, out_free_pin: if (status) { + mutex_lock(&desc->mux_lock); if (gpio_range) { desc->gpio_owner = NULL; } else { @@ -183,6 +197,7 @@ static int pin_request(struct pinctrl_dev *pctldev, if (!desc->mux_usecount) desc->mux_owner = NULL; } + mutex_unlock(&desc->mux_lock); } out: if (status) @@ -217,16 +232,22 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin, return NULL; } + mutex_lock(&desc->mux_lock); if (!gpio_range) { /* * A pin should not be freed more times than allocated. */ - if (WARN_ON(!desc->mux_usecount)) + if (WARN_ON(!desc->mux_usecount)) { + mutex_unlock(&desc->mux_lock); return NULL; + } desc->mux_usecount--; - if (desc->mux_usecount) + if (desc->mux_usecount) { + mutex_unlock(&desc->mux_lock); return NULL; + } } + mutex_unlock(&desc->mux_lock); /* * If there is no kind of request function for the pin we just assume @@ -237,6 +258,7 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin, else if (ops->free) ops->free(pctldev, pin); + mutex_lock(&desc->mux_lock); if (gpio_range) { owner = desc->gpio_owner; desc->gpio_owner = NULL; @@ -245,6 +267,7 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin, desc->mux_owner = NULL; desc->mux_setting = NULL; } + mutex_unlock(&desc->mux_lock); module_put(pctldev->owner); @@ -457,7 +480,9 @@ int pinmux_enable_setting(const struct pinctrl_setting *setting) pins[i]); continue; } + mutex_lock(&desc->mux_lock); desc->mux_setting = &(setting->data.mux); + mutex_unlock(&desc->mux_lock); } ret = ops->set_mux(pctldev, setting->data.mux.func, @@ -471,8 +496,11 @@ int pinmux_enable_setting(const struct pinctrl_setting *setting) err_set_mux: for (i = 0; i < num_pins; i++) { desc = pin_desc_get(pctldev, pins[i]); - if (desc) + if (desc) { + mutex_lock(&desc->mux_lock); desc->mux_setting = NULL; + mutex_unlock(&desc->mux_lock); + } } err_pin_request: /* On error release all taken pins */ @@ -491,6 +519,7 @@ void pinmux_disable_setting(const struct pinctrl_setting *setting) unsigned num_pins = 0; int i; struct pin_desc *desc; + bool is_equal; if (pctlops->get_group_pins) ret = pctlops->get_group_pins(pctldev, setting->data.mux.group, @@ -516,7 +545,11 @@ void pinmux_disable_setting(const struct pinctrl_setting *setting) pins[i]); continue; } - if (desc->mux_setting == &(setting->data.mux)) { + mutex_lock(&desc->mux_lock); + is_equal = (desc->mux_setting == &(setting->data.mux)); + mutex_unlock(&desc->mux_lock); + + if (is_equal) { pin_free(pctldev, pins[i], NULL); } else { const char *gname; @@ -608,6 +641,7 @@ static int pinmux_pins_show(struct seq_file *s, void *what) if (desc == NULL) continue; + mutex_lock(&desc->mux_lock); if (desc->mux_owner && !strcmp(desc->mux_owner, pinctrl_dev_get_name(pctldev))) is_hog = true; @@ -642,6 +676,7 @@ static int pinmux_pins_show(struct seq_file *s, void *what) desc->mux_setting->group)); else seq_putc(s, '\n'); + mutex_unlock(&desc->mux_lock); } mutex_unlock(&pctldev->mutex); -- 2.34.1

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