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[openeuler:openEuler-1.0-LTS 15686/23714] include/linux/uaccess.h:112:17: warning: 'p' may be used uninitialized
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: a2491968ab51323208d2d1a4d4b28325886d41b8 [15686/23714] Add io_uring IO interface config: arm64-randconfig-001-20240913 (https://download.01.org/0day-ci/archive/20240916/202409161422.WtkE4KWn-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240916/202409161422.WtkE4KWn-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/202409161422.WtkE4KWn-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 file included from include/linux/poll.h:12, from include/linux/ring_buffer.h:7, from include/linux/trace_events.h:6, from include/trace/syscall.h:7, from include/linux/syscalls.h:86, from fs/io_uring.c:31: In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'io_uring_setup' at fs/io_uring.c:1224:6: >> include/linux/uaccess.h:112:17: warning: 'p' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/compiler.h:251, from include/linux/export.h:45, from include/linux/linkage.h:7, from include/linux/kernel.h:7, from fs/io_uring.c:28: include/linux/kasan-checks.h: In function 'io_uring_setup': 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); | ^~~~~~~~~~~~~~~~~ fs/io_uring.c:1220:32: note: 'p' declared here 1220 | struct io_uring_params p; | ^ vim +/p +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 :::::: 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

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[openeuler:openEuler-1.0-LTS 17815/23714] drivers/edac/skx_common.o: warning: objtool: missing symbol for section .init.text
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: 3b7ad71a0a415eb51fb41ddc01ef538a7e163de4 [17815/23714] Intel: EDAC, i10nm: Add a driver for Intel 10nm server processors config: x86_64-buildonly-randconfig-001-20240915 (https://download.01.org/0day-ci/archive/20240916/202409161418.IlepWryM-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/20240916/202409161418.IlepWryM-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/202409161418.IlepWryM-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/edac/skx_common.c: In function 'skx_mce_output_error': drivers/edac/skx_common.c:470:15: warning: variable 'type' set but not used [-Wunused-but-set-variable] 470 | char *type, *optype; | ^~~~ drivers/edac/skx_common.c: In function 'skx_get_dimm_info': drivers/edac/skx_common.c:309:79: warning: '_DIMM#' directive output may be truncated writing 6 bytes into a region of size between 0 and 9 [-Wformat-truncation=] 309 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~ drivers/edac/skx_common.c:309:52: note: using the range [0, 4294967295] for directive argument 309 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/edac/skx_common.c:309:9: note: 'snprintf' output between 31 and 53 bytes into a destination of size 32 309 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 310 | imc->src_id, imc->lmc, chan, dimmno); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/edac/skx_common.c: In function 'skx_get_nvdimm_info': drivers/edac/skx_common.c:357:79: warning: '_DIMM#' directive output may be truncated writing 6 bytes into a region of size between 0 and 9 [-Wformat-truncation=] 357 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~ drivers/edac/skx_common.c:357:52: note: using the range [0, 4294967295] for directive argument 357 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/edac/skx_common.c:357:9: note: 'snprintf' output between 31 and 53 bytes into a destination of size 32 357 | snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 358 | imc->src_id, imc->lmc, chan, dimmno); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/edac/skx_common.o: warning: objtool: missing symbol for section .init.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 2962/23714] fs/pstore/inode.o: warning: objtool: missing symbol for section .exit.text
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: 68bc9e8812a24c4a04fd18a9e1ede123eaff0420 [2962/23714] pstore: Centralize init/exit routines config: x86_64-buildonly-randconfig-006-20240915 (https://download.01.org/0day-ci/archive/20240916/202409161416.tZCUlfeW-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/20240916/202409161416.tZCUlfeW-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/202409161416.tZCUlfeW-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/pstore/inode.o: warning: objtool: missing symbol for section .exit.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 6399/23714] drivers/md/bcache/journal.c:320:6: sparse: sparse: symbol 'is_discard_enabled' was not declared. Should it be static?
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: 70e6748c08ab45df178269e4e3ae6da56c33af54 [6399/23714] bcache: fix failure in journal relplay config: x86_64-randconfig-123-20240915 (https://download.01.org/0day-ci/archive/20240916/202409161342.bh5SnmU9-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/20240916/202409161342.bh5SnmU9-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/202409161342.bh5SnmU9-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/md/bcache/journal.c: note: in included file (through drivers/md/bcache/bcache.h): include/uapi/linux/bcache.h:294:38: sparse: sparse: array of flexible structures >> drivers/md/bcache/journal.c:320:6: sparse: sparse: symbol 'is_discard_enabled' was not declared. Should it be static? drivers/md/bcache/journal.c: note: in included file (through drivers/md/bcache/bcache.h): drivers/md/bcache/bset.h:231:36: sparse: sparse: array of flexible structures drivers/md/bcache/journal.c:627:13: sparse: sparse: context imbalance in 'journal_write_unlocked' - different lock contexts for basic block drivers/md/bcache/journal.c:725:9: sparse: sparse: context imbalance in 'journal_try_write' - different lock contexts for basic block drivers/md/bcache/journal.c:320:6: warning: no previous prototype for 'is_discard_enabled' [-Wmissing-prototypes] 320 | bool is_discard_enabled(struct cache_set *s) | ^~~~~~~~~~~~~~~~~~ drivers/md/bcache/journal.o: warning: objtool: journal_read_bucket()+0x157: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: journal_write_work()+0x6f: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: do_journal_discard()+0x4d: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: journal_reclaim()+0x64d: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: journal_wait_for_write()+0x290: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: bch_journal_mark()+0x6a2: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: is_discard_enabled()+0x13e: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: bch_journal_replay()+0x101: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: journal_write_unlocked()+0xeb: sibling call from callable instruction with modified stack frame drivers/md/bcache/journal.o: warning: objtool: bch_journal()+0x28d: sibling call from callable instruction with modified stack frame vim +/is_discard_enabled +320 drivers/md/bcache/journal.c 319 > 320 bool is_discard_enabled(struct cache_set *s) 321 { 322 struct cache *ca; 323 unsigned int i; 324 325 for_each_cache(ca, s, i) 326 if (ca->discard) 327 return true; 328 329 return false; 330 } 331 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1625/13950] ls2k500sfb.c:undefined reference to `fg_console'
by kernel test robot 16 Sep '24

16 Sep '24

Hi Chong, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 84404f248a61323e09909849803ea4efce81742f commit: 8248d42b7c5f4338a54f26d8efebec8614b43466 [1625/13950] fbdev: add ls2k500sfb driver for ls2k500 bmc. config: loongarch-randconfig-r064-20240916 (https://download.01.org/0day-ci/archive/20240916/202409161114.sOtMxgv1-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240916/202409161114.sOtMxgv1-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/202409161114.sOtMxgv1-lkp@intel.com/ All errors (new ones prefixed by >>): loongarch64-linux-ld: drivers/video/fbdev/ls2k500sfb.o: in function `.L152': >> ls2k500sfb.c:(.text+0xf9c): undefined reference to `fg_console' >> loongarch64-linux-ld: ls2k500sfb.c:(.text+0xfa0): undefined reference to `fg_console' loongarch64-linux-ld: net/ipv4/inet_hashtables.o: in function `inet_ehash_nolisten': inet_hashtables.c:(.text+0x2ff0): undefined reference to `sysctl_local_port_allocation' loongarch64-linux-ld: inet_hashtables.c:(.text+0x3000): undefined reference to `sysctl_local_port_allocation' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 7633/13950] drivers/ptp/ptp_hisi.c:731:36: warning: unused variable 'hisi_ptp_acpi_match'
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 84404f248a61323e09909849803ea4efce81742f commit: e6aa0ecf50a8a0da6b742aacd9cbd47463275a30 [7633/13950] net: hns3: add support for Hisilicon ptp sync device config: arm64-randconfig-003-20240916 (https://download.01.org/0day-ci/archive/20240916/202409161130.34ZDV9qj-lkp@…) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project bf684034844c660b778f0eba103582f582b710c9) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240916/202409161130.34ZDV9qj-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/202409161130.34ZDV9qj-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/ptp/ptp_hisi.c:3: In file included from include/linux/mm.h:2204: 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 + | ~~~~~~~~~~~~~~~~~~~~~~ >> drivers/ptp/ptp_hisi.c:731:36: warning: unused variable 'hisi_ptp_acpi_match' [-Wunused-const-variable] 731 | static const struct acpi_device_id hisi_ptp_acpi_match[] = { | ^~~~~~~~~~~~~~~~~~~ 5 warnings generated. vim +/hisi_ptp_acpi_match +731 drivers/ptp/ptp_hisi.c 730 > 731 static const struct acpi_device_id hisi_ptp_acpi_match[] = { 732 { "HISI0411", 0 }, 733 { } 734 }; 735 MODULE_DEVICE_TABLE(acpi, hisi_ptp_acpi_match); 736 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 5957/23714] include/linux/uaccess.h:112:17: warning: 'params' may be used uninitialized
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: 2dd8345826607c5d2d6528de872118da554015b6 [5957/23714] vfio: Add support for Shared Virtual Addressing config: arm64-randconfig-001-20240913 (https://download.01.org/0day-ci/archive/20240916/202409161055.v0wzDm7V-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240916/202409161055.v0wzDm7V-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/202409161055.v0wzDm7V-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 file included from drivers/vfio/vfio_iommu_type1.c:31: include/linux/module.h:134:13: warning: 'init_module' specifies less restrictive attribute than its target 'vfio_iommu_type1_init': 'cold' [-Wmissing-attributes] 134 | int init_module(void) __attribute__((alias(#initfn))); | ^~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2222:1: note: in expansion of macro 'module_init' 2222 | module_init(vfio_iommu_type1_init); | ^~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2212:19: note: 'init_module' target declared here 2212 | static int __init vfio_iommu_type1_init(void) | ^~~~~~~~~~~~~~~~~~~~~ include/linux/module.h:140:14: warning: 'cleanup_module' specifies less restrictive attribute than its target 'vfio_iommu_type1_cleanup': 'cold' [-Wmissing-attributes] 140 | void cleanup_module(void) __attribute__((alias(#exitfn))); | ^~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2223:1: note: in expansion of macro 'module_exit' 2223 | module_exit(vfio_iommu_type1_cleanup); | ^~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2217:20: note: 'cleanup_module' target declared here 2217 | static void __exit vfio_iommu_type1_cleanup(void) | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/compat.h:19, from drivers/vfio/vfio_iommu_type1.c:27: In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_bind_process' at drivers/vfio/vfio_iommu_type1.c:1933:6: >> include/linux/uaccess.h:112:17: warning: 'params' 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/div64.h:25, from ./arch/arm64/include/generated/asm/div64.h:1, from include/linux/math64.h:6, from include/linux/time64.h:5, from include/linux/compat_time.h:6, from include/linux/compat.h:10: include/linux/kasan-checks.h: In function 'vfio_iommu_type1_bind_process': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:1920:46: note: 'params' declared here 1920 | struct vfio_iommu_type1_bind_process params; | ^~~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_unbind_process' at drivers/vfio/vfio_iommu_type1.c:2021:6: >> include/linux/uaccess.h:112:17: warning: 'params' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'vfio_iommu_type1_unbind_process': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2014:46: note: 'params' declared here 2014 | struct vfio_iommu_type1_bind_process params; | ^~~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_ioctl' at drivers/vfio/vfio_iommu_type1.c:2084:7: 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 'vfio_iommu_type1_ioctl': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2080:46: note: 'info' declared here 2080 | struct vfio_iommu_type1_info info; | ^~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_ioctl' at drivers/vfio/vfio_iommu_type1.c:2104:7: include/linux/uaccess.h:112:17: warning: 'map' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'vfio_iommu_type1_ioctl': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2098:49: note: 'map' declared here 2098 | struct vfio_iommu_type1_dma_map map; | ^~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_ioctl' at drivers/vfio/vfio_iommu_type1.c:2118:7: include/linux/uaccess.h:112:17: warning: 'unmap' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'vfio_iommu_type1_ioctl': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2113:51: note: 'unmap' declared here 2113 | struct vfio_iommu_type1_dma_unmap unmap; | ^~~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_ioctl' at drivers/vfio/vfio_iommu_type1.c:2136:7: >> include/linux/uaccess.h:112:17: warning: 'bind' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'vfio_iommu_type1_ioctl': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2132:46: note: 'bind' declared here 2132 | struct vfio_iommu_type1_bind bind; | ^~~~ In function '_copy_from_user', inlined from 'copy_from_user' at include/linux/uaccess.h:144:7, inlined from 'vfio_iommu_type1_ioctl' at drivers/vfio/vfio_iommu_type1.c:2155:7: >> include/linux/uaccess.h:112:17: warning: 'bind' may be used uninitialized [-Wmaybe-uninitialized] 112 | kasan_check_write(to, n); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/kasan-checks.h: In function 'vfio_iommu_type1_ioctl': 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); | ^~~~~~~~~~~~~~~~~ drivers/vfio/vfio_iommu_type1.c:2151:46: note: 'bind' declared here 2151 | struct vfio_iommu_type1_bind bind; | ^~~~ vim +/params +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

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[openeuler:OLK-6.6 3778/13950] kernel/sched/core.c:11392:5: sparse: sparse: symbol 'tg_set_dynamic_affinity_mode' was not declared. Should it be static?
by kernel test robot 16 Sep '24

16 Sep '24

Hi Xianglai, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 84404f248a61323e09909849803ea4efce81742f commit: 351aa968603500987e891b20cc97a677602ae7c2 [3778/13950] loongarch/kernel: Fix loongarch compilation error config: loongarch-randconfig-r133-20240913 (https://download.01.org/0day-ci/archive/20240916/202409161053.1Z3YaAWy-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240916/202409161053.1Z3YaAWy-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/202409161053.1Z3YaAWy-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/core.c:266:56: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:266:56: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:266:56: sparse: struct task_struct * kernel/sched/core.c:1046:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:1046:38: sparse: expected struct task_struct *curr kernel/sched/core.c:1046:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:2235:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:2235:33: sparse: expected struct task_struct *p kernel/sched/core.c:2235:33: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:2235:68: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:2235:68: sparse: expected struct task_struct *tsk kernel/sched/core.c:2235:68: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:3752:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/core.c:3752:17: sparse: expected struct sched_domain *[assigned] sd kernel/sched/core.c:3752:17: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/core.c:3960:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:3960:36: sparse: expected struct task_struct const *p kernel/sched/core.c:3960:36: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:9529:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *push_task @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:9529:43: sparse: expected struct task_struct *push_task kernel/sched/core.c:9529:43: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:5700:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:5700:38: sparse: expected struct task_struct *curr kernel/sched/core.c:5700:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:6334:32: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:6334:32: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:6334:32: sparse: struct task_struct * kernel/sched/core.c:6365:23: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:6365:23: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:6365:23: sparse: struct task_struct * kernel/sched/core.c:6373:46: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:6373:46: sparse: struct task_struct * kernel/sched/core.c:6373:46: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:6432:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/core.c:6432:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/core.c:6432:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/core.c:6645:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:6645:14: sparse: expected struct task_struct *prev kernel/sched/core.c:6645:14: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:7170:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7170:17: sparse: struct task_struct * kernel/sched/core.c:7170:17: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7386:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7386:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7386:22: sparse: struct task_struct * kernel/sched/core.c:7433:48: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7433:48: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7433:48: sparse: struct task_struct * >> kernel/sched/core.c:11392:5: sparse: sparse: symbol 'tg_set_dynamic_affinity_mode' was not declared. Should it be static? >> kernel/sched/core.c:11433:5: sparse: sparse: symbol 'tg_set_affinity_period' was not declared. Should it be static? >> kernel/sched/core.c:11447:5: sparse: sparse: symbol 'tg_get_affinity_period' was not declared. Should it be static? kernel/sched/core.c:12140:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/core.c:12140:25: sparse: expected struct task_struct *p kernel/sched/core.c:12140:25: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:340:9: sparse: sparse: context imbalance in 'sched_core_lock' - different lock contexts for basic block kernel/sched/core.c:350:17: sparse: sparse: context imbalance in 'sched_core_unlock' - unexpected unlock kernel/sched/core.c:553:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit kernel/sched/core.c:578:6: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit kernel/sched/core.c: note: in included file: kernel/sched/sched.h:1364:30: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock kernel/sched/core.c:640:36: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit kernel/sched/core.c:681:36: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit kernel/sched/core.c: note: in included file: kernel/sched/pelt.h:97:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/pelt.h:97:13: sparse: expected struct task_struct const *p kernel/sched/pelt.h:97:13: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:2226:33: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2227:19: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2228:18: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2288:15: sparse: sparse: context imbalance in 'wait_task_inactive' - different lock contexts for basic block kernel/sched/core.c: note: in included file: kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/core.c:2201:38: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:2201:38: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:2201:38: sparse: struct task_struct const * kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/core.c: note: in included file (through include/linux/mmu_context.h, include/linux/cpuset.h): arch/loongarch/include/asm/mmu_context.h:86:9: sparse: sparse: undefined identifier '__builtin_loongarch_csrwr_w' arch/loongarch/include/asm/mmu_context.h:89:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrwr_d' arch/loongarch/include/asm/mmu_context.h:91:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrwr_d' kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/switch_to.h): arch/loongarch/include/asm/fpu.h:76:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w' arch/loongarch/include/asm/fpu.h:85:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w' kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/cpu-info.h, arch/loongarch/include/asm/processor.h, ...): arch/loongarch/include/asm/loongarch.h:1252:1: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w' arch/loongarch/include/asm/loongarch.h:1252:1: sparse: sparse: undefined identifier '__builtin_loongarch_csrwr_w' kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/switch_to.h): arch/loongarch/include/asm/fpu.h:225:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrxchg_w' kernel/sched/core.c: note: in included file: kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct * kernel/sched/sched.h:2454:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2454:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2454:9: sparse: struct task_struct * vim +/tg_set_dynamic_affinity_mode +11392 kernel/sched/core.c 304000390f88d0 Josh Don 2021-07-29 11390 6eb07f9925a906 Hui Tang 2024-01-17 11391 #ifdef CONFIG_QOS_SCHED_SMART_GRID 6eb07f9925a906 Hui Tang 2024-01-17 @11392 int tg_set_dynamic_affinity_mode(struct task_group *tg, u64 mode) 6eb07f9925a906 Hui Tang 2024-01-17 11393 { 6eb07f9925a906 Hui Tang 2024-01-17 11394 struct auto_affinity *auto_affi = tg->auto_affinity; 6eb07f9925a906 Hui Tang 2024-01-17 11395 6eb07f9925a906 Hui Tang 2024-01-17 11396 if (unlikely(!auto_affi)) 6eb07f9925a906 Hui Tang 2024-01-17 11397 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11398 6eb07f9925a906 Hui Tang 2024-01-17 11399 /* auto mode */ 6eb07f9925a906 Hui Tang 2024-01-17 11400 if (mode == 1) 6eb07f9925a906 Hui Tang 2024-01-17 11401 start_auto_affinity(auto_affi); 6eb07f9925a906 Hui Tang 2024-01-17 11402 else if (mode == 0) 6eb07f9925a906 Hui Tang 2024-01-17 11403 stop_auto_affinity(auto_affi); 6eb07f9925a906 Hui Tang 2024-01-17 11404 else 6eb07f9925a906 Hui Tang 2024-01-17 11405 return -EINVAL; 6eb07f9925a906 Hui Tang 2024-01-17 11406 6eb07f9925a906 Hui Tang 2024-01-17 11407 return 0; 6eb07f9925a906 Hui Tang 2024-01-17 11408 } 6eb07f9925a906 Hui Tang 2024-01-17 11409 6eb07f9925a906 Hui Tang 2024-01-17 11410 static u64 cpu_affinity_mode_read_u64(struct cgroup_subsys_state *css, 6eb07f9925a906 Hui Tang 2024-01-17 11411 struct cftype *cft) 6eb07f9925a906 Hui Tang 2024-01-17 11412 { 6eb07f9925a906 Hui Tang 2024-01-17 11413 struct task_group *tg = css_tg(css); 6eb07f9925a906 Hui Tang 2024-01-17 11414 e76dedf2e4cc38 Yipeng Zou 2024-01-17 11415 if (!smart_grid_enabled()) 6eb07f9925a906 Hui Tang 2024-01-17 11416 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11417 6eb07f9925a906 Hui Tang 2024-01-17 11418 if (unlikely(!tg->auto_affinity)) 6eb07f9925a906 Hui Tang 2024-01-17 11419 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11420 6eb07f9925a906 Hui Tang 2024-01-17 11421 return tg->auto_affinity->mode; 6eb07f9925a906 Hui Tang 2024-01-17 11422 } 6eb07f9925a906 Hui Tang 2024-01-17 11423 6eb07f9925a906 Hui Tang 2024-01-17 11424 static int cpu_affinity_mode_write_u64(struct cgroup_subsys_state *css, 6eb07f9925a906 Hui Tang 2024-01-17 11425 struct cftype *cftype, u64 mode) 6eb07f9925a906 Hui Tang 2024-01-17 11426 { e76dedf2e4cc38 Yipeng Zou 2024-01-17 11427 if (!smart_grid_enabled()) 6eb07f9925a906 Hui Tang 2024-01-17 11428 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11429 6eb07f9925a906 Hui Tang 2024-01-17 11430 return tg_set_dynamic_affinity_mode(css_tg(css), mode); 6eb07f9925a906 Hui Tang 2024-01-17 11431 } 6eb07f9925a906 Hui Tang 2024-01-17 11432 6eb07f9925a906 Hui Tang 2024-01-17 @11433 int tg_set_affinity_period(struct task_group *tg, u64 period_ms) 6eb07f9925a906 Hui Tang 2024-01-17 11434 { 6eb07f9925a906 Hui Tang 2024-01-17 11435 if (unlikely(!tg->auto_affinity)) 6eb07f9925a906 Hui Tang 2024-01-17 11436 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11437 6eb07f9925a906 Hui Tang 2024-01-17 11438 if (!period_ms || period_ms > U64_MAX / NSEC_PER_MSEC) 6eb07f9925a906 Hui Tang 2024-01-17 11439 return -EINVAL; 6eb07f9925a906 Hui Tang 2024-01-17 11440 6eb07f9925a906 Hui Tang 2024-01-17 11441 raw_spin_lock_irq(&tg->auto_affinity->lock); 6eb07f9925a906 Hui Tang 2024-01-17 11442 tg->auto_affinity->period = ms_to_ktime(period_ms); 6eb07f9925a906 Hui Tang 2024-01-17 11443 raw_spin_unlock_irq(&tg->auto_affinity->lock); 6eb07f9925a906 Hui Tang 2024-01-17 11444 return 0; 6eb07f9925a906 Hui Tang 2024-01-17 11445 } 6eb07f9925a906 Hui Tang 2024-01-17 11446 6eb07f9925a906 Hui Tang 2024-01-17 @11447 u64 tg_get_affinity_period(struct task_group *tg) 6eb07f9925a906 Hui Tang 2024-01-17 11448 { 6eb07f9925a906 Hui Tang 2024-01-17 11449 if (unlikely(!tg->auto_affinity)) 6eb07f9925a906 Hui Tang 2024-01-17 11450 return -EPERM; 6eb07f9925a906 Hui Tang 2024-01-17 11451 6eb07f9925a906 Hui Tang 2024-01-17 11452 return ktime_to_ms(tg->auto_affinity->period); 6eb07f9925a906 Hui Tang 2024-01-17 11453 } 6eb07f9925a906 Hui Tang 2024-01-17 11454 :::::: The code at line 11392 was first introduced by commit :::::: 6eb07f9925a906d81f328c808ba25f7800888dce sched: Introduce smart grid scheduling strategy for cfs :::::: TO: Hui Tang <tanghui20(a)huawei.com> :::::: CC: yanhaitao <yanhaitao2(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 10902/23714] drivers/pci/hotplug/pciehp_core.o: warning: objtool: missing symbol for section .init.text
by kernel test robot 16 Sep '24

16 Sep '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 37aeb7e817053fbf532b214aa02858b3c23af0b1 commit: 58d584102f06f870f118644f1022c751e015e7bb [10902/23714] PCI: portdrv: Initialize service drivers directly config: x86_64-buildonly-randconfig-001-20240915 (https://download.01.org/0day-ci/archive/20240916/202409160928.GS8enSKA-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/20240916/202409160928.GS8enSKA-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/202409160928.GS8enSKA-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/pci/hotplug/pciehp_core.c:214: warning: Function parameter or member 'ctrl' not described in 'pciehp_check_presence' >> drivers/pci/hotplug/pciehp_core.o: warning: objtool: missing symbol for section .init.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2552/13950] kernel/sched/fair.c:314:36: error: 'hundred_thousand' undeclared here (not in a function)
by kernel test robot 16 Sep '24

16 Sep '24

Hi Yipeng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 84404f248a61323e09909849803ea4efce81742f commit: f7c232d3e20a69b46e53da221ba3cbac0fa68a0d [2552/13950] smart_grid: introduce smart_grid_strategy_ctrl sysctl config: loongarch-randconfig-r133-20240913 (https://download.01.org/0day-ci/archive/20240916/202409160615.YbK4RmzA-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20240916/202409160615.YbK4RmzA-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/202409160615.YbK4RmzA-lkp@intel.com/ All errors (new ones prefixed by >>): >> kernel/sched/fair.c:314:36: error: 'hundred_thousand' undeclared here (not in a function) 314 | .extra2 = &hundred_thousand, | ^~~~~~~~~~~~~~~~ kernel/sched/fair.c:7104:6: warning: no previous prototype for 'free_affinity_domains' [-Wmissing-prototypes] 7104 | void free_affinity_domains(struct affinity_domain *ad) | ^~~~~~~~~~~~~~~~~~~~~ vim +/hundred_thousand +314 kernel/sched/fair.c 216 217 #ifdef CONFIG_SYSCTL 218 static struct ctl_table sched_fair_sysctls[] = { 219 { 220 .procname = "sched_child_runs_first", 221 .data = &sysctl_sched_child_runs_first, 222 .maxlen = sizeof(unsigned int), 223 .mode = 0644, 224 .proc_handler = proc_dointvec, 225 }, 226 #ifdef CONFIG_CFS_BANDWIDTH 227 { 228 .procname = "sched_cfs_bandwidth_slice_us", 229 .data = &sysctl_sched_cfs_bandwidth_slice, 230 .maxlen = sizeof(unsigned int), 231 .mode = 0644, 232 .proc_handler = proc_dointvec_minmax, 233 .extra1 = SYSCTL_ONE, 234 }, 235 #endif 236 #ifdef CONFIG_NUMA_BALANCING 237 { 238 .procname = "numa_balancing_promote_rate_limit_MBps", 239 .data = &sysctl_numa_balancing_promote_rate_limit, 240 .maxlen = sizeof(unsigned int), 241 .mode = 0644, 242 .proc_handler = proc_dointvec_minmax, 243 .extra1 = SYSCTL_ZERO, 244 }, 245 #endif /* CONFIG_NUMA_BALANCING */ 246 #ifdef CONFIG_QOS_SCHED 247 { 248 .procname = "qos_overload_detect_period_ms", 249 .data = &sysctl_overload_detect_period, 250 .maxlen = sizeof(unsigned int), 251 .mode = 0644, 252 .proc_handler = proc_dointvec_minmax, 253 .extra1 = SYSCTL_ONE_HUNDRED, 254 .extra2 = &hundred_thousand, 255 }, 256 { 257 .procname = "qos_offline_wait_interval_ms", 258 .data = &sysctl_offline_wait_interval, 259 .maxlen = sizeof(unsigned int), 260 .mode = 0644, 261 .proc_handler = proc_dointvec_minmax, 262 .extra1 = SYSCTL_ONE_HUNDRED, 263 .extra2 = &one_thousand, 264 }, 265 #endif 266 #ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY 267 { 268 .procname = "sched_util_low_pct", 269 .data = &sysctl_sched_util_low_pct, 270 .maxlen = sizeof(sysctl_sched_util_low_pct), 271 .mode = 0644, 272 .proc_handler = proc_dointvec_minmax, 273 .extra1 = SYSCTL_ZERO, 274 .extra2 = SYSCTL_ONE_HUNDRED, 275 }, 276 #endif 277 #ifdef CONFIG_QOS_SCHED_PRIO_LB 278 { 279 .procname = "sched_prio_load_balance_enabled", 280 .data = &sysctl_sched_prio_load_balance_enabled, 281 .maxlen = sizeof(unsigned int), 282 .mode = 0644, 283 .proc_handler = proc_dointvec_minmax, 284 .extra1 = SYSCTL_ZERO, 285 .extra2 = SYSCTL_ONE, 286 }, 287 #endif 288 #ifdef CONFIG_QOS_SCHED_MULTILEVEL 289 { 290 .procname = "qos_level_weights", 291 .data = &sysctl_qos_level_weights, 292 .maxlen = 5*sizeof(int), 293 .mode = 0644, 294 .proc_handler = proc_dointvec, 295 }, 296 #endif 297 #ifdef CONFIG_QOS_SCHED_SMART_GRID 298 { 299 .procname = "smart_grid_strategy_ctrl", 300 .data = &sysctl_smart_grid_strategy_ctrl, 301 .maxlen = sizeof(unsigned int), 302 .mode = 0644, 303 .proc_handler = proc_dointvec_minmax, 304 .extra1 = SYSCTL_ZERO, 305 .extra2 = SYSCTL_ONE, 306 }, 307 { 308 .procname = "affinity_adjust_delay_ms", 309 .data = &sysctl_affinity_adjust_delay_ms, 310 .maxlen = sizeof(unsigned int), 311 .mode = 0644, 312 .proc_handler = proc_dointvec_minmax, 313 .extra1 = SYSCTL_ZERO, > 314 .extra2 = &hundred_thousand, 315 }, 316 #endif 317 {} 318 }; 319 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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