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[openeuler:OLK-6.6 2634/2634] drivers/crypto/ccp/hygon/tdm-kernel-guard.c:308:23: error: use of undeclared identifier 'NR_syscalls'
by kernel test robot 04 Aug '25

04 Aug '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: e46fbbc0ad301c3517340bf966d39b8493a2ebb0 commit: 3ad98583441f7c8a2553e1e8d6340ed4397033e2 [2634/2634] crypto: tdm: Support dynamic protection for SCT and IDT by HYGON TDM config: x86_64-buildonly-randconfig-2004-20250804 (https://download.01.org/0day-ci/archive/20250804/202508041257.VLmpFnXZ-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250804/202508041257.VLmpFnXZ-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/202508041257.VLmpFnXZ-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/crypto/ccp/hygon/tdm-kernel-guard.c:15: In file included from include/linux/kallsyms.h:13: 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 + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:151:5: warning: no previous prototype for function 'tdm_service_run' [-Wmissing-prototypes] 151 | int tdm_service_run(struct tdm_security_enhance *data) | ^ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:151:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 151 | int tdm_service_run(struct tdm_security_enhance *data) | ^ | static drivers/crypto/ccp/hygon/tdm-kernel-guard.c:212:5: warning: no previous prototype for function 'tdm_service_exit' [-Wmissing-prototypes] 212 | int tdm_service_exit(struct tdm_security_enhance *data) | ^ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:212:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 212 | int tdm_service_exit(struct tdm_security_enhance *data) | ^ | static >> drivers/crypto/ccp/hygon/tdm-kernel-guard.c:308:23: error: use of undeclared identifier 'NR_syscalls' 308 | eh_objs[SCT].size = NR_syscalls * sizeof(char *); | ^ 7 warnings and 1 error generated. vim +/NR_syscalls +308 drivers/crypto/ccp/hygon/tdm-kernel-guard.c 286 287 sct_addr = (unsigned long *)kallsyms_lookup_name("sys_call_table"); 288 #endif 289 if (!sct_addr) { 290 ret = -DYN_ERR_API; 291 pr_err("kallsyms_lookup_name for sys_call_table failed!"); 292 goto end; 293 } 294 295 asm("sidt %0":"=m"(idtr)); 296 297 if (!psp_check_tdm_support()) 298 return 0; 299 300 for (i = 0; i < MAX_OBJ; i++) { 301 memset(&eh_objs[i], 0, sizeof(eh_objs[i])); 302 eh_objs[i].context = CONTEXT_CHECK_MODNAME; 303 eh_objs[i].obj_name = obj_names[i]; 304 } 305 306 if ((eh_obj == -1) || (eh_obj & (1 << SCT))) { 307 eh_objs[SCT].vaddr = (uint64_t)sct_addr; > 308 eh_objs[SCT].size = NR_syscalls * sizeof(char *); 309 } 310 if ((eh_obj == -1) || (eh_obj & (1 << IDT))) { 311 eh_objs[IDT].vaddr = idtr.address; 312 eh_objs[IDT].size = idtr.size; 313 } 314 315 for (i = 0; i < MAX_OBJ; i++) { 316 if (eh_objs[i].vaddr) 317 tdm_service_run(&eh_objs[i]); 318 } 319 320 pr_info("Hygon TDM guard load successfully!\n"); 321 322 end: 323 return ret; 324 } 325 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2634/2634] kernel/sched/psi.c:894:13: warning: 'task_is_in_psi_v1' defined but not used
by kernel test robot 04 Aug '25

04 Aug '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 2c3b9ec99c8859c2992ed4684c28a503913d5251 commit: 2dfc29e742a07863c2426aea03d5c2c97b558b9d [2634/2634] sched/psi: Export cgroup psi from cgroupv2 to cgroupv1 config: x86_64-buildonly-randconfig-2003-20250804 (https://download.01.org/0day-ci/archive/20250804/202508041114.JMCuqZko-lkp@…) compiler: gcc-12 (Debian 12.2.0-14+deb12u1) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250804/202508041114.JMCuqZko-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/202508041114.JMCuqZko-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_utility.c:97: >> kernel/sched/psi.c:894:13: warning: 'task_is_in_psi_v1' defined but not used [-Wunused-function] 894 | static bool task_is_in_psi_v1(void) | ^~~~~~~~~~~~~~~~~ vim +/task_is_in_psi_v1 +894 kernel/sched/psi.c 884 885 #if defined(CONFIG_CGROUP_CPUACCT) && defined(CONFIG_PSI_CGROUP_V1) 886 static bool task_is_in_psi_v1(void) 887 { 888 if (static_branch_likely(&psi_v1_disabled)) 889 return false; 890 891 return !cgroup_subsys_on_dfl(cpuacct_cgrp_subsys); 892 } 893 #else > 894 static bool task_is_in_psi_v1(void) 895 { 896 return false; 897 } 898 #endif 899 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10] ACPICA: Refuse to evaluate a method if arguments are missing
by Xiongfeng Wang 04 Aug '25

04 Aug '25

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> stable inclusion from stable-v5.10.240 commit 2219e49857ffd6aea1b1ca5214d3270f84623a16 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXEP CVE: CVE-2025-38386 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6fcab2791543924d438e7fa49276d0998b0a069f ] As reported in [1], a platform firmware update that increased the number of method parameters and forgot to update a least one of its callers, caused ACPICA to crash due to use-after-free. Since this a result of a clear AML issue that arguably cannot be fixed up by the interpreter (it cannot produce missing data out of thin air), address it by making ACPICA refuse to evaluate a method if the caller attempts to pass fewer arguments than expected to it. Closes: https://github.com/acpica/acpica/issues/1027 [1] Reported-by: Peter Williams <peter(a)newton.cx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Reviewed-by: Hans de Goede <hansg(a)kernel.org> Tested-by: Hans de Goede <hansg(a)kernel.org> # Dell XPS 9640 with BIOS 1.12.0 Link: https://patch.msgid.link/5909446.DvuYhMxLoT@rjwysocki.net Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/acpi/acpica/dsmethod.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 97971c79c5f56..13c67f58e9052 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -483,6 +483,13 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, return_ACPI_STATUS(AE_NULL_OBJECT); } + if (this_walk_state->num_operands < obj_desc->method.param_count) { + ACPI_ERROR((AE_INFO, "Missing argument for method [%4.4s]", + acpi_ut_get_node_name(method_node))); + + return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); + } + /* Init for new method, possibly wait on method mutex */ status = -- 2.20.1

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[PATCH OLK-6.6] ACPICA: Refuse to evaluate a method if arguments are missing
by Xiongfeng Wang 04 Aug '25

04 Aug '25

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> stable inclusion from stable-v6.6.97 commit d547779e72cea9865b732cd45393c4cd02b3598e category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXEP CVE: CVE-2025-38386 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 6fcab2791543924d438e7fa49276d0998b0a069f ] As reported in [1], a platform firmware update that increased the number of method parameters and forgot to update a least one of its callers, caused ACPICA to crash due to use-after-free. Since this a result of a clear AML issue that arguably cannot be fixed up by the interpreter (it cannot produce missing data out of thin air), address it by making ACPICA refuse to evaluate a method if the caller attempts to pass fewer arguments than expected to it. Closes: https://github.com/acpica/acpica/issues/1027 [1] Reported-by: Peter Williams <peter(a)newton.cx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Reviewed-by: Hans de Goede <hansg(a)kernel.org> Tested-by: Hans de Goede <hansg(a)kernel.org> # Dell XPS 9640 with BIOS 1.12.0 Link: https://patch.msgid.link/5909446.DvuYhMxLoT@rjwysocki.net Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/acpi/acpica/dsmethod.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index e809c2aed78a..a232746d150a 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -483,6 +483,13 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, return_ACPI_STATUS(AE_NULL_OBJECT); } + if (this_walk_state->num_operands < obj_desc->method.param_count) { + ACPI_ERROR((AE_INFO, "Missing argument for method [%4.4s]", + acpi_ut_get_node_name(method_node))); + + return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); + } + /* Init for new method, possibly wait on method mutex */ status = -- 2.20.1

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[PATCH openEuler-1.0-LTS] ACPICA: Refuse to evaluate a method if arguments are missing
by Xiongfeng Wang 04 Aug '25

04 Aug '25

From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> mainline inclusion from mainline-v6.16-rc3 commit 6fcab2791543924d438e7fa49276d0998b0a069f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXEP CVE: CVE-2025-38386 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- As reported in [1], a platform firmware update that increased the number of method parameters and forgot to update a least one of its callers, caused ACPICA to crash due to use-after-free. Since this a result of a clear AML issue that arguably cannot be fixed up by the interpreter (it cannot produce missing data out of thin air), address it by making ACPICA refuse to evaluate a method if the caller attempts to pass fewer arguments than expected to it. Closes: https://github.com/acpica/acpica/issues/1027 [1] Reported-by: Peter Williams <peter(a)newton.cx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Reviewed-by: Hans de Goede <hansg(a)kernel.org> Tested-by: Hans de Goede <hansg(a)kernel.org> # Dell XPS 9640 with BIOS 1.12.0 Link: https://patch.msgid.link/5909446.DvuYhMxLoT@rjwysocki.net Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/acpi/acpica/dsmethod.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index a00516d9538c..6d44fedf9763 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -483,6 +483,13 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, return_ACPI_STATUS(AE_NULL_OBJECT); } + if (this_walk_state->num_operands < obj_desc->method.param_count) { + ACPI_ERROR((AE_INFO, "Missing argument for method [%4.4s]", + acpi_ut_get_node_name(method_node))); + + return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG); + } + /* Init for new method, possibly wait on method mutex */ status = -- 2.20.1

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[openeuler:OLK-6.6 2634/2634] drivers/crypto/ccp/hygon/tdm-dev.c:340:40: error: incomplete definition of type 'struct module'
by kernel test robot 04 Aug '25

04 Aug '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 2c3b9ec99c8859c2992ed4684c28a503913d5251 commit: a1dd4972da4e66d9a9d1a89b3dfd8f742c20193b [2634/2634] crypto: tdm: Add Hygon TDM driver config: x86_64-buildonly-randconfig-2004-20250804 (https://download.01.org/0day-ci/archive/20250804/202508041105.2ucnSiI7-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250804/202508041105.2ucnSiI7-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/202508041105.2ucnSiI7-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/crypto/ccp/hygon/tdm-dev.c:21: In file included from include/linux/kfifo.h:42: In file included from include/linux/scatterlist.h:8: 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 + | ~~~~~~~~~~~~~~~~~~~~~~ drivers/crypto/ccp/hygon/tdm-dev.c:94:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 94 | int ret = 0; | ^ >> drivers/crypto/ccp/hygon/tdm-dev.c:340:40: error: incomplete definition of type 'struct module' 340 | memcpy(ctx_msg.module_name, p_module->name, sizeof(p_module->name)); | ~~~~~~~~^ arch/x86/include/asm/alternative.h:103:8: note: forward declaration of 'struct module' 103 | struct module; | ^ drivers/crypto/ccp/hygon/tdm-dev.c:340:63: error: incomplete definition of type 'struct module' 340 | memcpy(ctx_msg.module_name, p_module->name, sizeof(p_module->name)); | ~~~~~~~~^ arch/x86/include/asm/alternative.h:103:8: note: forward declaration of 'struct module' 103 | struct module; | ^ drivers/crypto/ccp/hygon/tdm-dev.c:606:20: warning: variable 'head' set but not used [-Wunused-but-set-variable] 606 | struct list_head *head = NULL; | ^ 7 warnings and 2 errors generated. vim +340 drivers/crypto/ccp/hygon/tdm-dev.c 323 324 if (!hash) { 325 ret = -DYN_NULL_POINTER; 326 pr_err("Null pointer\n"); 327 goto end; 328 } 329 330 ctx_msg.flag = flag; 331 ctx_msg.pid = current->pid; 332 memcpy(ctx_msg.comm, current->comm, sizeof(current->comm)); 333 334 return_address = CALLER_ADDR1; 335 if (return_address) { 336 #if IS_BUILTIN(CONFIG_CRYPTO_DEV_CCP_DD) 337 p_module = __module_address(return_address); 338 // caller is module 339 if (p_module) > 340 memcpy(ctx_msg.module_name, p_module->name, sizeof(p_module->name)); 341 // caller is build-in 342 else 343 memset(ctx_msg.module_name, 0, sizeof(ctx_msg.module_name)); 344 #elif IS_ENABLED(CONFIG_KALLSYMS) 345 symbol_len = sprint_symbol((char *)symbol_buf, return_address); 346 if (!symbol_len) { 347 ret = -DYN_ERR_API; 348 pr_err("sprint_symbol failed\n"); 349 goto end; 350 } 351 symbol_begin = strchr((char *)symbol_buf, '['); 352 if (!symbol_begin) { 353 ret = -DYN_NULL_POINTER; 354 pr_err("module name is not exist\n"); 355 goto end; 356 } 357 symbol_end = strchr((char *)symbol_buf, ']'); 358 if (!symbol_end) { 359 ret = -DYN_NULL_POINTER; 360 pr_err("module name is not exist\n"); 361 goto end; 362 } 363 symbol_begin++; 364 if (symbol_end - symbol_begin) 365 memcpy(ctx_msg.module_name, symbol_begin, symbol_end - symbol_begin); 366 else 367 memset(ctx_msg.module_name, 0, sizeof(ctx_msg.module_name)); 368 #else 369 memset(ctx_msg.module_name, 0, sizeof(ctx_msg.module_name)); 370 #endif 371 } else 372 memset(ctx_msg.module_name, 0, sizeof(ctx_msg.module_name)); 373 374 ret = calc_task_context_hash(ctx_msg, hash); 375 if (ret) { 376 pr_err("calc_task_context_hash failed\n"); 377 goto end; 378 } 379 380 end: 381 return ret; 382 } 383 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] drm/v3d: Disable interrupts before resetting the GPU
by Xiaomeng Zhang 04 Aug '25

04 Aug '25

From: Maíra Canal <mcanal(a)igalia.com> stable inclusion from stable-v6.6.97 commit 387da3b6d1a90e3210bc9a7fb56703bdad2ac18a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXDY CVE: CVE-2025-38371 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 ] Currently, an interrupt can be triggered during a GPU reset, which can lead to GPU hangs and NULL pointer dereference in an interrupt context as shown in the following trace: [ 314.035040] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0 [ 314.043822] Mem abort info: [ 314.046606] ESR = 0x0000000096000005 [ 314.050347] EC = 0x25: DABT (current EL), IL = 32 bits [ 314.055651] SET = 0, FnV = 0 [ 314.058695] EA = 0, S1PTW = 0 [ 314.061826] FSC = 0x05: level 1 translation fault [ 314.066694] Data abort info: [ 314.069564] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 314.075039] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 314.080080] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 314.085382] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000102728000 [ 314.091814] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 314.100511] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 314.106770] Modules linked in: v3d i2c_brcmstb vc4 snd_soc_hdmi_codec gpu_sched drm_shmem_helper drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight [ 314.129654] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1 [ 314.139388] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT) [ 314.145211] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 314.152165] pc : v3d_irq+0xec/0x2e0 [v3d] [ 314.156187] lr : v3d_irq+0xe0/0x2e0 [v3d] [ 314.160198] sp : ffffffc080003ea0 [ 314.163502] x29: ffffffc080003ea0 x28: ffffffec1f184980 x27: 021202b000000000 [ 314.170633] x26: ffffffec1f17f630 x25: ffffff8101372000 x24: ffffffec1f17d9f0 [ 314.177764] x23: 000000000000002a x22: 000000000000002a x21: ffffff8103252000 [ 314.184895] x20: 0000000000000001 x19: 00000000deadbeef x18: 0000000000000000 [ 314.192026] x17: ffffff94e51d2000 x16: ffffffec1dac3cb0 x15: c306000000000000 [ 314.199156] x14: 0000000000000000 x13: b2fc982e03cc5168 x12: 0000000000000001 [ 314.206286] x11: ffffff8103f8bcc0 x10: ffffffec1f196868 x9 : ffffffec1dac3874 [ 314.213416] x8 : 0000000000000000 x7 : 0000000000042a3a x6 : ffffff810017a180 [ 314.220547] x5 : ffffffec1ebad400 x4 : ffffffec1ebad320 x3 : 00000000000bebeb [ 314.227677] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 314.234807] Call trace: [ 314.237243] v3d_irq+0xec/0x2e0 [v3d] [ 314.240906] __handle_irq_event_percpu+0x58/0x218 [ 314.245609] handle_irq_event+0x54/0xb8 [ 314.249439] handle_fasteoi_irq+0xac/0x240 [ 314.253527] handle_irq_desc+0x48/0x68 [ 314.257269] generic_handle_domain_irq+0x24/0x38 [ 314.261879] gic_handle_irq+0x48/0xd8 [ 314.265533] call_on_irq_stack+0x24/0x58 [ 314.269448] do_interrupt_handler+0x88/0x98 [ 314.273624] el1_interrupt+0x34/0x68 [ 314.277193] el1h_64_irq_handler+0x18/0x28 [ 314.281281] el1h_64_irq+0x64/0x68 [ 314.284673] default_idle_call+0x3c/0x168 [ 314.288675] do_idle+0x1fc/0x230 [ 314.291895] cpu_startup_entry+0x3c/0x50 [ 314.295810] rest_init+0xe4/0xf0 [ 314.299030] start_kernel+0x5e8/0x790 [ 314.302684] __primary_switched+0x80/0x90 [ 314.306691] Code: 940029eb 360ffc13 f9442ea0 52800001 (f9406017) [ 314.312775] ---[ end trace 0000000000000000 ]--- [ 314.317384] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 314.324249] SMP: stopping secondary CPUs [ 314.328167] Kernel Offset: 0x2b9da00000 from 0xffffffc080000000 [ 314.334076] PHYS_OFFSET: 0x0 [ 314.336946] CPU features: 0x08,00002013,c0200000,0200421b [ 314.342337] Memory Limit: none [ 314.345382] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]--- Before resetting the GPU, it's necessary to disable all interrupts and deal with any interrupt handler still in-flight. Otherwise, the GPU might reset with jobs still running, or yet, an interrupt could be handled during the reset. Cc: stable(a)vger.kernel.org Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Reviewed-by: Juan A. Suarez <jasuarez(a)igalia.com> Reviewed-by: Iago Toral Quiroga <itoral(a)igalia.com> Link: https://lore.kernel.org/r/20250628224243.47599-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal(a)igalia.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- drivers/gpu/drm/v3d/v3d_drv.h | 8 ++++++++ drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ drivers/gpu/drm/v3d/v3d_irq.c | 37 +++++++++++++++++++++++++---------- 3 files changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 7f664a4b2a75..bcef978ba9c4 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -62,6 +62,12 @@ struct v3d_perfmon { u64 values[]; }; +enum v3d_irq { + V3D_CORE_IRQ, + V3D_HUB_IRQ, + V3D_MAX_IRQS, +}; + struct v3d_dev { struct drm_device drm; @@ -71,6 +77,8 @@ struct v3d_dev { int ver; bool single_irq_line; + int irq[V3D_MAX_IRQS]; + void __iomem *hub_regs; void __iomem *core_regs[3]; void __iomem *bridge_regs; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 2e94ce788c71..ef991a9b1c6c 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -120,6 +120,8 @@ v3d_reset(struct v3d_dev *v3d) if (false) v3d_idle_axi(v3d, 0); + v3d_irq_disable(v3d); + v3d_idle_gca(v3d); v3d_reset_v3d(v3d); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index b2d59a168697..641315dbee8b 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -215,7 +215,7 @@ v3d_hub_irq(int irq, void *arg) int v3d_irq_init(struct v3d_dev *v3d) { - int irq1, ret, core; + int irq, ret, core; INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work); @@ -226,17 +226,24 @@ v3d_irq_init(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS); - irq1 = platform_get_irq_optional(v3d_to_pdev(v3d), 1); - if (irq1 == -EPROBE_DEFER) - return irq1; - if (irq1 > 0) { - ret = devm_request_irq(v3d->drm.dev, irq1, + irq = platform_get_irq_optional(v3d_to_pdev(v3d), 1); + if (irq == -EPROBE_DEFER) + return irq; + if (irq > 0) { + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d_core0", v3d); if (ret) goto fail; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_HUB_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_HUB_IRQ], v3d_hub_irq, IRQF_SHARED, "v3d_hub", v3d); if (ret) @@ -244,8 +251,12 @@ v3d_irq_init(struct v3d_dev *v3d) } else { v3d->single_irq_line = true; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d", v3d); if (ret) @@ -286,6 +297,12 @@ v3d_irq_disable(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_INT_MSK_SET, ~0); V3D_WRITE(V3D_HUB_INT_MSK_SET, ~0); + /* Finish any interrupt handler still in flight. */ + for (int i = 0; i < V3D_MAX_IRQS; i++) { + if (v3d->irq[i]) + synchronize_irq(v3d->irq[i]); + } + /* Clear any pending interrupts we might have left. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); -- 2.34.1

2 1

[PATCH OLK-5.10] drm/v3d: Disable interrupts before resetting the GPU
by Xiaomeng Zhang 04 Aug '25

04 Aug '25

From: Maíra Canal <mcanal(a)igalia.com> stable inclusion from stable-v5.10.240 commit 2446e25e9246e0642a41d91cbf54c33b275da3c3 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ICOXDY CVE: CVE-2025-38371 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 226862f50a7a88e4e4de9abbf36c64d19acd6fd0 ] Currently, an interrupt can be triggered during a GPU reset, which can lead to GPU hangs and NULL pointer dereference in an interrupt context as shown in the following trace: [ 314.035040] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000c0 [ 314.043822] Mem abort info: [ 314.046606] ESR = 0x0000000096000005 [ 314.050347] EC = 0x25: DABT (current EL), IL = 32 bits [ 314.055651] SET = 0, FnV = 0 [ 314.058695] EA = 0, S1PTW = 0 [ 314.061826] FSC = 0x05: level 1 translation fault [ 314.066694] Data abort info: [ 314.069564] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 314.075039] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 314.080080] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 314.085382] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000102728000 [ 314.091814] [00000000000000c0] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 314.100511] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 314.106770] Modules linked in: v3d i2c_brcmstb vc4 snd_soc_hdmi_codec gpu_sched drm_shmem_helper drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight [ 314.129654] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.25+rpt-rpi-v8 #1 Debian 1:6.12.25-1+rpt1 [ 314.139388] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT) [ 314.145211] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 314.152165] pc : v3d_irq+0xec/0x2e0 [v3d] [ 314.156187] lr : v3d_irq+0xe0/0x2e0 [v3d] [ 314.160198] sp : ffffffc080003ea0 [ 314.163502] x29: ffffffc080003ea0 x28: ffffffec1f184980 x27: 021202b000000000 [ 314.170633] x26: ffffffec1f17f630 x25: ffffff8101372000 x24: ffffffec1f17d9f0 [ 314.177764] x23: 000000000000002a x22: 000000000000002a x21: ffffff8103252000 [ 314.184895] x20: 0000000000000001 x19: 00000000deadbeef x18: 0000000000000000 [ 314.192026] x17: ffffff94e51d2000 x16: ffffffec1dac3cb0 x15: c306000000000000 [ 314.199156] x14: 0000000000000000 x13: b2fc982e03cc5168 x12: 0000000000000001 [ 314.206286] x11: ffffff8103f8bcc0 x10: ffffffec1f196868 x9 : ffffffec1dac3874 [ 314.213416] x8 : 0000000000000000 x7 : 0000000000042a3a x6 : ffffff810017a180 [ 314.220547] x5 : ffffffec1ebad400 x4 : ffffffec1ebad320 x3 : 00000000000bebeb [ 314.227677] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 314.234807] Call trace: [ 314.237243] v3d_irq+0xec/0x2e0 [v3d] [ 314.240906] __handle_irq_event_percpu+0x58/0x218 [ 314.245609] handle_irq_event+0x54/0xb8 [ 314.249439] handle_fasteoi_irq+0xac/0x240 [ 314.253527] handle_irq_desc+0x48/0x68 [ 314.257269] generic_handle_domain_irq+0x24/0x38 [ 314.261879] gic_handle_irq+0x48/0xd8 [ 314.265533] call_on_irq_stack+0x24/0x58 [ 314.269448] do_interrupt_handler+0x88/0x98 [ 314.273624] el1_interrupt+0x34/0x68 [ 314.277193] el1h_64_irq_handler+0x18/0x28 [ 314.281281] el1h_64_irq+0x64/0x68 [ 314.284673] default_idle_call+0x3c/0x168 [ 314.288675] do_idle+0x1fc/0x230 [ 314.291895] cpu_startup_entry+0x3c/0x50 [ 314.295810] rest_init+0xe4/0xf0 [ 314.299030] start_kernel+0x5e8/0x790 [ 314.302684] __primary_switched+0x80/0x90 [ 314.306691] Code: 940029eb 360ffc13 f9442ea0 52800001 (f9406017) [ 314.312775] ---[ end trace 0000000000000000 ]--- [ 314.317384] Kernel panic - not syncing: Oops: Fatal exception in interrupt [ 314.324249] SMP: stopping secondary CPUs [ 314.328167] Kernel Offset: 0x2b9da00000 from 0xffffffc080000000 [ 314.334076] PHYS_OFFSET: 0x0 [ 314.336946] CPU features: 0x08,00002013,c0200000,0200421b [ 314.342337] Memory Limit: none [ 314.345382] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]--- Before resetting the GPU, it's necessary to disable all interrupts and deal with any interrupt handler still in-flight. Otherwise, the GPU might reset with jobs still running, or yet, an interrupt could be handled during the reset. Cc: stable(a)vger.kernel.org Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+") Reviewed-by: Juan A. Suarez <jasuarez(a)igalia.com> Reviewed-by: Iago Toral Quiroga <itoral(a)igalia.com> Link: https://lore.kernel.org/r/20250628224243.47599-1-mcanal@igalia.com Signed-off-by: Maíra Canal <mcanal(a)igalia.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Xiaomeng Zhang <zhangxiaomeng13(a)huawei.com> --- drivers/gpu/drm/v3d/v3d_drv.h | 7 +++++++ drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ drivers/gpu/drm/v3d/v3d_irq.c | 38 ++++++++++++++++++++++++++--------- 3 files changed, 37 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 8a390738d65b..a605b31a8224 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -37,6 +37,12 @@ struct v3d_queue_state { u64 emit_seqno; }; +enum v3d_irq { + V3D_CORE_IRQ, + V3D_HUB_IRQ, + V3D_MAX_IRQS, +}; + struct v3d_dev { struct drm_device drm; @@ -46,6 +52,7 @@ struct v3d_dev { int ver; bool single_irq_line; + int irq[V3D_MAX_IRQS]; void __iomem *hub_regs; void __iomem *core_regs[3]; void __iomem *bridge_regs; diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 64fe63c1938f..32cc461937cf 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -120,6 +120,8 @@ v3d_reset(struct v3d_dev *v3d) if (false) v3d_idle_axi(v3d, 0); + v3d_irq_disable(v3d); + v3d_idle_gca(v3d); v3d_reset_v3d(v3d); diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c index c88686489b88..6c233b9e8648 100644 --- a/drivers/gpu/drm/v3d/v3d_irq.c +++ b/drivers/gpu/drm/v3d/v3d_irq.c @@ -206,7 +206,7 @@ v3d_hub_irq(int irq, void *arg) int v3d_irq_init(struct v3d_dev *v3d) { - int irq1, ret, core; + int irq, ret, core; INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work); @@ -217,17 +217,24 @@ v3d_irq_init(struct v3d_dev *v3d) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS); - irq1 = platform_get_irq(v3d_to_pdev(v3d), 1); - if (irq1 == -EPROBE_DEFER) - return irq1; - if (irq1 > 0) { - ret = devm_request_irq(v3d->drm.dev, irq1, + irq = platform_get_irq(v3d_to_pdev(v3d), 1); + if (irq == -EPROBE_DEFER) + return irq; + if (irq > 0) { + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d_core0", v3d); if (ret) goto fail; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_HUB_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_HUB_IRQ], v3d_hub_irq, IRQF_SHARED, "v3d_hub", v3d); if (ret) @@ -235,8 +242,12 @@ v3d_irq_init(struct v3d_dev *v3d) } else { v3d->single_irq_line = true; - ret = devm_request_irq(v3d->drm.dev, - platform_get_irq(v3d_to_pdev(v3d), 0), + irq = platform_get_irq(v3d_to_pdev(v3d), 0); + if (irq < 0) + return irq; + v3d->irq[V3D_CORE_IRQ] = irq; + + ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ], v3d_irq, IRQF_SHARED, "v3d", v3d); if (ret) @@ -271,12 +282,19 @@ void v3d_irq_disable(struct v3d_dev *v3d) { int core; + int i; /* Disable all interrupts. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_MSK_SET, ~0); V3D_WRITE(V3D_HUB_INT_MSK_SET, ~0); + /* Finish any interrupt handler still in flight. */ + for (i = 0; i < V3D_MAX_IRQS; i++) { + if (v3d->irq[i]) + synchronize_irq(v3d->irq[i]); + } + /* Clear any pending interrupts we might have left. */ for (core = 0; core < v3d->cores; core++) V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS); -- 2.34.1

2 1

[PATCH OLK-6.6 v2 0/2] arm64: Fix two bugs for hardware xcall/xint
by Jinjie Ruan 04 Aug '25

04 Aug '25

Fix two bugs for hardware xcall/xint. Jinjie Ruan (2): arm64: Fix '__NR_syscalls' undeclared error arm64: Do not enable hardware xcall if actlr_el1 can not set arch/arm64/include/asm/xcall.h | 1 + arch/arm64/kernel/cpufeature.c | 45 ++++++++++++++-------------------- 2 files changed, 19 insertions(+), 27 deletions(-) -- 2.34.1

2 3

[openeuler:openEuler-1.0-LTS 1743/1743] arch/x86/kernel/tsc.c:61:1: warning: 'inline' is not at beginning of declaration
by kernel test robot 04 Aug '25

04 Aug '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: ba07135cf74b1424e2f7f0c60e59c5b206ab320c commit: 4907c68abd3f60f650f98d5a69d4ec77c0bde44f [1743/1743] x86/tsc: Force inlining of cyc2ns bits config: x86_64-buildonly-randconfig-2004-20250802 (https://download.01.org/0day-ci/archive/20250804/202508041025.pObzdAyL-lkp@…) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250804/202508041025.pObzdAyL-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/202508041025.pObzdAyL-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/tsc.c:61:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration] 61 | void __always_inline cyc2ns_read_begin(struct cyc2ns_data *data) | ^~~~ arch/x86/kernel/tsc.c:78:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration] 78 | void __always_inline cyc2ns_read_end(void) | ^~~~ arch/x86/kernel/tsc.c:1497:15: warning: no previous prototype for 'calibrate_delay_is_known' [-Wmissing-prototypes] 1497 | unsigned long calibrate_delay_is_known(void) | ^~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/tsc.c:1236: warning: Excess function parameter 'cycles' description in 'convert_art_ns_to_tsc' arch/x86/kernel/tsc.c:1236: warning: Excess function parameter 'cs' description in 'convert_art_ns_to_tsc' arch/x86/kernel/tsc.c:1270: warning: Function parameter or member 'work' not described in 'tsc_refine_calibration_work' vim +/inline +61 arch/x86/kernel/tsc.c 60 > 61 void __always_inline cyc2ns_read_begin(struct cyc2ns_data *data) 62 { 63 int seq, idx; 64 65 preempt_disable_notrace(); 66 67 do { 68 seq = this_cpu_read(cyc2ns.seq.sequence); 69 idx = seq & 1; 70 71 data->cyc2ns_offset = this_cpu_read(cyc2ns.data[idx].cyc2ns_offset); 72 data->cyc2ns_mul = this_cpu_read(cyc2ns.data[idx].cyc2ns_mul); 73 data->cyc2ns_shift = this_cpu_read(cyc2ns.data[idx].cyc2ns_shift); 74 75 } while (unlikely(seq != this_cpu_read(cyc2ns.seq.sequence))); 76 } 77 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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