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[openeuler:OLK-6.6 1474/1474] security/integrity/ima/ima_tpm.c:19:6: warning: no previous prototype for function 'ima_pcrread'
by kernel test robot 17 Nov '24

17 Nov '24

Hi GONG, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 7c547c6bbe6b6a9cedf63d7cdadb2529404df633 commit: 40151ef24c1a0f35c5e0442834eb776877e66683 [1474/1474] ima: rot: Prepare TPM as an RoT config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20241117/202411170123.vN1EUOxu-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/20241117/202411170123.vN1EUOxu-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/202411170123.vN1EUOxu-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from security/integrity/ima/ima_tpm.c:12: In file included from include/linux/tpm.h:24: In file included from include/linux/highmem.h:8: In file included from include/linux/cacheflush.h:5: In file included from arch/x86/include/asm/cacheflush.h:5: In file included from include/linux/mm.h:2247: 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 + | ~~~~~~~~~~~~~~~~~~~~~~ >> security/integrity/ima/ima_tpm.c:19:6: warning: no previous prototype for function 'ima_pcrread' [-Wmissing-prototypes] 19 | void ima_pcrread(u32 idx, struct tpm_digest *d) | ^ security/integrity/ima/ima_tpm.c:19:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 19 | void ima_pcrread(u32 idx, struct tpm_digest *d) | ^ | static security/integrity/ima/ima_tpm.c:28:5: warning: no previous prototype for function 'ima_pcr_extend' [-Wmissing-prototypes] 28 | int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) | ^ security/integrity/ima/ima_tpm.c:28:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 28 | int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) | ^ | static >> security/integrity/ima/ima_tpm.c:41:5: warning: no previous prototype for function 'ima_tpm_init' [-Wmissing-prototypes] 41 | int ima_tpm_init(struct ima_rot *rot) | ^ security/integrity/ima/ima_tpm.c:41:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 41 | int ima_tpm_init(struct ima_rot *rot) | ^ | static >> security/integrity/ima/ima_tpm.c:53:5: warning: no previous prototype for function 'ima_tpm_extend' [-Wmissing-prototypes] 53 | int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) | ^ security/integrity/ima/ima_tpm.c:53:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 53 | int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) | ^ | static >> security/integrity/ima/ima_tpm.c:60:5: warning: no previous prototype for function 'ima_tpm_calc_boot_aggregate' [-Wmissing-prototypes] 60 | int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) | ^ security/integrity/ima/ima_tpm.c:60:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 60 | int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) | ^ | static 10 warnings generated. vim +/ima_pcrread +19 security/integrity/ima/ima_tpm.c 18 > 19 void ima_pcrread(u32 idx, struct tpm_digest *d) 20 { 21 if (!ima_tpm_chip) 22 return; 23 24 if (tpm_pcr_read(ima_tpm_chip, idx, d) != 0) 25 pr_err("Error Communicating to TPM chip\n"); 26 } 27 > 28 int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) 29 { 30 int result = 0; 31 32 if (!ima_tpm_chip) 33 return result; 34 35 result = tpm_pcr_extend(ima_tpm_chip, pcr, digests_arg); 36 if (result != 0) 37 pr_err("Error Communicating to TPM chip, result: %d\n", result); 38 return result; 39 } 40 > 41 int ima_tpm_init(struct ima_rot *rot) 42 { 43 ima_tpm_chip = tpm_default_chip(); 44 if (!ima_tpm_chip) 45 return -ENODEV; 46 47 rot->nr_allocated_banks = ima_tpm_chip->nr_allocated_banks; 48 rot->allocated_banks = ima_tpm_chip->allocated_banks; 49 50 return 0; 51 } 52 > 53 int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) 54 { 55 const int pcr = *(const int *)args; 56 57 return ima_pcr_extend(digests_arg, pcr); 58 } 59 > 60 int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1466/1466] arch/loongarch/kvm/exit.c:768:2-3: Unneeded semicolon
by kernel test robot 16 Nov '24

16 Nov '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 7c547c6bbe6b6a9cedf63d7cdadb2529404df633 commit: 60f12ac296b9c755ff6f94fed1590a9ae2e6dfa7 [1466/1466] LoongArch: KVM: Add pv ipi support on kvm side config: loongarch-randconfig-r051-20241114 (https://download.01.org/0day-ci/archive/20241116/202411160232.2JVuDLjW-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.2.0 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/202411160232.2JVuDLjW-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> arch/loongarch/kvm/exit.c:768:2-3: Unneeded semicolon vim +768 arch/loongarch/kvm/exit.c 751 752 /* 753 * hypercall emulation always return to guest, Caller should check retval. 754 */ 755 static void kvm_handle_pv_service(struct kvm_vcpu *vcpu) 756 { 757 unsigned long func = vcpu->arch.gprs[LOONGARCH_GPR_A0]; 758 long ret; 759 760 switch (func) { 761 case KVM_HCALL_FUNC_PV_IPI: 762 kvm_pv_send_ipi(vcpu); 763 ret = KVM_HCALL_STATUS_SUCCESS; 764 break; 765 default: 766 ret = KVM_HCALL_INVALID_CODE; 767 break; > 768 }; 769 770 vcpu->arch.gprs[LOONGARCH_GPR_A0] = ret; 771 } 772 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS 0/2] CVE-2024-50117
by Xia Fukun 16 Nov '24

16 Nov '24

CVE-2024-50117 patch: Antonio Quartulli (1): drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported Mario Limonciello (1): drm/amd: Guard against bad data for ATIF ACPI method drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS] drm/amd: Guard against bad data for ATIF ACPI method
by Xia Fukun 16 Nov '24

16 Nov '24

From: Mario Limonciello <mario.limonciello(a)amd.com> stable inclusion from stable-v4.19.323 commit 58556dcbd5606a5daccaee73b2130bc16b48e025 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IB2BX5 CVE: CVE-2024-50117 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- commit bf58f03931fdcf7b3c45cb76ac13244477a60f44 upstream. If a BIOS provides bad data in response to an ATIF method call this causes a NULL pointer dereference in the caller. ``` ? show_regs (arch/x86/kernel/dumpstack.c:478 (discriminator 1)) ? __die (arch/x86/kernel/dumpstack.c:423 arch/x86/kernel/dumpstack.c:434) ? page_fault_oops (arch/x86/mm/fault.c:544 (discriminator 2) arch/x86/mm/fault.c:705 (discriminator 2)) ? do_user_addr_fault (arch/x86/mm/fault.c:440 (discriminator 1) arch/x86/mm/fault.c:1232 (discriminator 1)) ? acpi_ut_update_object_reference (drivers/acpi/acpica/utdelete.c:642) ? exc_page_fault (arch/x86/mm/fault.c:1542) ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) ? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:387 (discriminator 2)) amdgpu ? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:386 (discriminator 1)) amdgpu ``` It has been encountered on at least one system, so guard for it. Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)") Acked-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Mario Limonciello <mario.limonciello(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> (cherry picked from commit c9b7c809b89f24e9372a4e7f02d64c950b07fdee) Cc: stable(a)vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index bbd927e800af..bf8044bf4734 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -90,6 +90,7 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, struct acpi_buffer *params) { acpi_status status; + union acpi_object *obj; union acpi_object atif_arg_elements[2]; struct acpi_object_list atif_arg; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -112,16 +113,24 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, status = acpi_evaluate_object(atif->handle, NULL, &atif_arg, &buffer); + obj = (union acpi_object *)buffer.pointer; - /* Fail only if calling the method fails and ATIF is supported */ + /* Fail if calling the method fails and ATIF is supported */ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { DRM_DEBUG_DRIVER("failed to evaluate ATIF got %s\n", acpi_format_exception(status)); - kfree(buffer.pointer); + kfree(obj); return NULL; } - return buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER) { + DRM_DEBUG_DRIVER("bad object returned from ATIF: %d\n", + obj->type); + kfree(obj); + return NULL; + } + + return obj; } /** -- 2.34.1

2 1

[PATCH openEuler-22.03-LTS-SP1 v2] scsi: libsas: Add smp_ata_check_ready_type()
by Li Nan 16 Nov '24

16 Nov '24

From: Jie Zhan <zhanjie9(a)hisilicon.com> mainline inclusion from mainline-v6.2-rc1 commit 9181ce3cb5d96f0ee28246a857ca651830fa3746 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6V6I1 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------------------------- Create function smp_ata_check_ready_type() for LLDDs to wait for SATA devices to come up after a link reset. Signed-off-by: Jie Zhan <zhanjie9(a)hisilicon.com> Link: https://lore.kernel.org/r/20221118083714.4034612-4-zhanjie9@hisilicon.com Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: xiabing <xiabing12(a)h-partners.com> Signed-off-by: Li Nan <linan122(a)huawei.com> --- v2: change commit id to 40char drivers/scsi/libsas/sas_internal.h | 2 ++ include/scsi/sas_ata.h | 6 ++++++ drivers/scsi/libsas/sas_ata.c | 25 +++++++++++++++++++++++++ drivers/scsi/libsas/sas_expander.c | 4 ++-- 4 files changed, 35 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h index acd515c01861..18749b2a6502 100644 --- a/drivers/scsi/libsas/sas_internal.h +++ b/drivers/scsi/libsas/sas_internal.h @@ -86,6 +86,8 @@ struct domain_device *sas_ex_to_ata(struct domain_device *ex_dev, int phy_id); int sas_ex_phy_discover(struct domain_device *dev, int single); int sas_get_report_phy_sata(struct domain_device *dev, int phy_id, struct smp_resp *rps_resp); +int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id, + u8 *sas_addr, enum sas_device_type *type); int sas_try_ata_reset(struct asd_sas_phy *phy); void sas_hae_reset(struct work_struct *work); diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h index e0d2d4915257..74e8feea85b4 100644 --- a/include/scsi/sas_ata.h +++ b/include/scsi/sas_ata.h @@ -34,6 +34,7 @@ void sas_suspend_sata(struct asd_sas_port *port); void sas_resume_sata(struct asd_sas_port *port); void sas_ata_end_eh(struct ata_port *ap); int sas_ata_wait_after_reset(struct domain_device *dev, unsigned long deadline); +int smp_ata_check_ready_type(struct ata_link *link); #else @@ -92,6 +93,11 @@ static inline int sas_ata_wait_after_reset(struct domain_device *dev, { return -ETIMEDOUT; } + +static inline int smp_ata_check_ready_type(struct ata_link *link) +{ + return 0; +} #endif #endif /* _SAS_ATA_H_ */ diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index d54f91636ad1..ff09e0ff00d2 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -301,6 +301,31 @@ static int sas_ata_clear_pending(struct domain_device *dev, struct ex_phy *phy) return 1; } +int smp_ata_check_ready_type(struct ata_link *link) +{ + struct domain_device *dev = link->ap->private_data; + struct sas_phy *phy = sas_get_local_phy(dev); + struct domain_device *ex_dev = dev->parent; + enum sas_device_type type = SAS_PHY_UNUSED; + u8 sas_addr[SAS_ADDR_SIZE]; + int res; + + res = sas_get_phy_attached_dev(ex_dev, phy->number, sas_addr, &type); + sas_put_local_phy(phy); + if (res) + return res; + + switch (type) { + case SAS_SATA_PENDING: + return 0; + case SAS_END_DEVICE: + return 1; + default: + return -ENODEV; + } +} +EXPORT_SYMBOL_GPL(smp_ata_check_ready_type); + static int smp_ata_check_ready(struct ata_link *link) { int res; diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index dd22c7a32059..2287f8e07968 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -1727,8 +1727,8 @@ static int sas_get_phy_change_count(struct domain_device *dev, return res; } -static int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id, - u8 *sas_addr, enum sas_device_type *type) +int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id, + u8 *sas_addr, enum sas_device_type *type) { int res; struct smp_disc_resp *disc_resp; -- 2.39.2

2 1

[PATCH openEuler-22.03-LTS-SP1 v3 00/13] Align 5.10 higher version bpf verifier
by Pu Lehui 16 Nov '24

16 Nov '24

Andrii Nakryiko (4): bpf: propagate precision across all frames, not just the last one bpf: stop setting precise in current state bpf: fix check for attempt to corrupt spilled pointer bpf: fix precision propagation verbose logging Eduard Zingerman (2): bpf: Fix to preserve reg parent/live fields when copying range info bpf: track immediate values written to stack by BPF_ST instruction Hao Sun (1): bpf: Fix check_stack_write_fixed_off() to correctly spill imm Martin KaFai Lau (3): bpf: Check the other end of slot_type for STACK_SPILL bpf: Support <8-byte scalar spill and refill bpf: Do not reject when the stack read size is different from the tracked scalar size Maxim Mikityanskiy (1): bpf: Fix verifier id tracking of scalars on spill Paul Chaignon (1): bpf: Fix incorrect state pruning for <8B spill/fill Shung-Hsi Yu (1): bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END kernel/bpf/verifier.c | 334 +++++++++++++----- .../bpf/verifier/bounds_mix_sign_unsign.c | 110 +++--- 2 files changed, 308 insertions(+), 136 deletions(-) -- 2.34.1

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[PATCH openEuler-22.03-LTS-SP1 0/9] Fix deadlock caused by infinite
by Zheng Zengkai 15 Nov '24

15 Nov '24

Backport 2fdb8a8f07c2 ("drm/scheduler: rework entity flush, kill and fini") to fix the buggy synchronous waiting. Other patches are preparations and bugfixes. Andrey Grodzovsky (1): drm/sched: Avoid lockdep spalt on killing a processes Boris Brezillon (2): drm/sched: Avoid infinite waits in the drm_sched_entity_destroy() path drm/sched: Declare entity idle only after HW submission Christian König (2): drm/scheduler: fix fence ref counting drm/scheduler: rework entity flush, kill and fini Daniel Vetter (1): drm/sched: Add dependency tracking Dmitry Osipenko (2): drm/scheduler: Don't kill jobs in interrupt context drm/scheduler: Fix lockup in drm_sched_entity_kill() ZhenGuo Yin (1): drm/scheduler: avoid infinite loop if entity's dependency is a scheduled error fence drivers/gpu/drm/scheduler/sched_entity.c | 193 +++++++++++------------ drivers/gpu/drm/scheduler/sched_main.c | 111 ++++++++++++- include/drm/gpu_scheduler.h | 45 +++++- 3 files changed, 245 insertions(+), 104 deletions(-) -- 2.20.1

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[PATCH OLK-6.6] Revert "Loongarch: Dynamic enable writecombine"
by Hongchen Zhang 15 Nov '24

15 Nov '24

LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IB4PPE CVE: NA -------------------------------- This reverts commit 1c1c00037eb689f81d98f269fbdf76fa178bb15d. Fixes: 1c1c00037eb6 ("Loongarch: Dynamic enable writecombine") Signed-off-by: Hongchen Zhang <zhanghongchen(a)loongson.cn> --- arch/loongarch/kernel/setup.c | 28 ++-------------------------- include/drm/drm_cache.h | 2 +- 2 files changed, 3 insertions(+), 27 deletions(-) diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index a210e2507368..481c85a5f1b5 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -184,14 +184,12 @@ bool wc_enabled = false; EXPORT_SYMBOL(wc_enabled); -static int wc_arg = -1; - static int __init setup_writecombine(char *p) { if (!strcmp(p, "on")) - wc_arg = true; + wc_enabled = true; else if (!strcmp(p, "off")) - wc_arg = false; + wc_enabled = false; else pr_warn("Unknown writecombine setting \"%s\".\n", p); @@ -373,26 +371,6 @@ static void __init bootcmdline_init(char **cmdline_p) *cmdline_p = boot_command_line; } -static void __init writecombine_detect(void) -{ - u64 cpuname; - - if (wc_arg >= 0) { - wc_enabled = wc_arg; - return; - } - - cpuname = iocsr_read64(LOONGARCH_IOCSR_CPUNAME); - - switch (cpuname) { - case 0x0000303030364333: - wc_enabled = true; - break; - default: - break; - } -} - void __init platform_init(void) { arch_reserve_vmcore(); @@ -416,8 +394,6 @@ void __init platform_init(void) smbios_parse(); pr_info("The BIOS Version: %s\n", b_info.bios_version); - writecombine_detect(); - pr_info("WriteCombine: %s\n", wc_enabled ? "on":"off"); efi_runtime_init(); } diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h index 667fb0368ef6..08e0e3ffad13 100644 --- a/include/drm/drm_cache.h +++ b/include/drm/drm_cache.h @@ -74,7 +74,7 @@ static inline bool drm_arch_can_wc_memory(void) * cache coherency machanism. This means WUC can only used for write-only * memory regions. */ - return wc_enabled; + return false; #else return true; #endif -- 2.33.0

2 1

[PATCH OLK-6.6] Revert "Loongarch: Dynamic enable writecombine"
by Hongchen Zhang 15 Nov '24

15 Nov '24

LoongArch inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IB4PPE -------------------------------- This reverts commit 1c1c00037eb689f81d98f269fbdf76fa178bb15d. Fixes: 1c1c00037eb6 ("Loongarch: Dynamic enable writecombine") Signed-off-by: Hongchen Zhang <zhanghongchen(a)loongson.cn> --- arch/loongarch/kernel/setup.c | 28 ++-------------------------- include/drm/drm_cache.h | 2 +- 2 files changed, 3 insertions(+), 27 deletions(-) diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c index a210e2507368..481c85a5f1b5 100644 --- a/arch/loongarch/kernel/setup.c +++ b/arch/loongarch/kernel/setup.c @@ -184,14 +184,12 @@ bool wc_enabled = false; EXPORT_SYMBOL(wc_enabled); -static int wc_arg = -1; - static int __init setup_writecombine(char *p) { if (!strcmp(p, "on")) - wc_arg = true; + wc_enabled = true; else if (!strcmp(p, "off")) - wc_arg = false; + wc_enabled = false; else pr_warn("Unknown writecombine setting \"%s\".\n", p); @@ -373,26 +371,6 @@ static void __init bootcmdline_init(char **cmdline_p) *cmdline_p = boot_command_line; } -static void __init writecombine_detect(void) -{ - u64 cpuname; - - if (wc_arg >= 0) { - wc_enabled = wc_arg; - return; - } - - cpuname = iocsr_read64(LOONGARCH_IOCSR_CPUNAME); - - switch (cpuname) { - case 0x0000303030364333: - wc_enabled = true; - break; - default: - break; - } -} - void __init platform_init(void) { arch_reserve_vmcore(); @@ -416,8 +394,6 @@ void __init platform_init(void) smbios_parse(); pr_info("The BIOS Version: %s\n", b_info.bios_version); - writecombine_detect(); - pr_info("WriteCombine: %s\n", wc_enabled ? "on":"off"); efi_runtime_init(); } diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h index 667fb0368ef6..08e0e3ffad13 100644 --- a/include/drm/drm_cache.h +++ b/include/drm/drm_cache.h @@ -74,7 +74,7 @@ static inline bool drm_arch_can_wc_memory(void) * cache coherency machanism. This means WUC can only used for write-only * memory regions. */ - return wc_enabled; + return false; #else return true; #endif -- 2.33.0

2 1

[PATCH openEuler-22.03-LTS-SP1 v2 0/9] Align 5.10 higher version bpf verifier
by Pu Lehui 15 Nov '24

15 Nov '24

Andrii Nakryiko (4): bpf: propagate precision across all frames, not just the last one bpf: stop setting precise in current state bpf: fix check for attempt to corrupt spilled pointer bpf: fix precision propagation verbose logging Eduard Zingerman (1): bpf: Fix to preserve reg parent/live fields when copying range info Martin KaFai Lau (3): bpf: Check the other end of slot_type for STACK_SPILL bpf: Support <8-byte scalar spill and refill bpf: Do not reject when the stack read size is different from the tracked scalar size Paul Chaignon (1): bpf: Fix incorrect state pruning for <8B spill/fill kernel/bpf/verifier.c | 306 ++++++++++++++++++++++++++++++------------ 1 file changed, 219 insertions(+), 87 deletions(-) -- 2.34.1

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