Kernel

kernel@openeuler.org

February 2025

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302 discussions

[openeuler:openEuler-1.0-LTS 1343/1343] fs/ext4/mballoc.o: warning: objtool: ext4_mb_complex_scan_group()+0x11a4: unreachable instruction
by kernel test robot 05 Feb '25

05 Feb '25

Hi Theodore, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: da51139d17e9d53d61a9877d9042e43b85d71ee1 commit: 41298197ead9e85ee2ec1d52122f03fd1863cff2 [1343/1343] ext4: convert BUG_ON's to WARN_ON's in mballoc.c config: x86_64-randconfig-101-20241223 (https://download.01.org/0day-ci/archive/20250205/202502050119.jyApN4Fx-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/20250205/202502050119.jyApN4Fx-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/202502050119.jyApN4Fx-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from fs/ext4/mballoc.c:12: In file included from fs/ext4/ext4_jbd2.h:16: In file included from include/linux/jbd2.h:26: In file included from include/linux/buffer_head.h:14: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. fs/ext4/mballoc.c:4734: warning: Function parameter or member 'bh' not described in 'ext4_free_blocks' >> fs/ext4/mballoc.o: warning: objtool: ext4_mb_complex_scan_group()+0x11a4: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1365/1365] drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed.
by kernel test robot 04 Feb '25

04 Feb '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: da51139d17e9d53d61a9877d9042e43b85d71ee1 commit: b8815fbbe89b0d15fa3296c3e57d2197a92f5bc0 [1365/1365] ACPI: CPPC: Fix cppc_cpufreq_init failed in CPU Hotplug situation config: x86_64-randconfig-102-20250103 (https://download.01.org/0day-ci/archive/20250204/202502042318.pGS3sedi-lkp@…) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) 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/202502042318.pGS3sedi-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed. vim +614 drivers/acpi/cppc_acpi.c 576 577 int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data) 578 { 579 struct cpc_desc **cpc_pptr, *cpc_ptr; 580 int parsed_core_num = 0; 581 int i, ret; 582 583 cpc_pptr = kcalloc(num_possible_cpus(), sizeof(void *), GFP_KERNEL); 584 if (!cpc_pptr) 585 return -ENOMEM; 586 for_each_possible_cpu(i) { 587 cpc_pptr[i] = kzalloc(sizeof(struct cpc_desc), GFP_KERNEL); 588 if (!cpc_pptr[i]) { 589 ret = -ENOMEM; 590 goto out; 591 } 592 } 593 594 /* 595 * We can not use acpi_get_devices() to walk the processor devices 596 * because some processor device is not present. 597 */ 598 ret = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 599 ACPI_UINT32_MAX, acpi_parse_cpc, NULL, 600 cpc_pptr, (void **)&parsed_core_num); 601 if (ret) 602 goto out; 603 if (parsed_core_num != num_possible_cpus()) { 604 ret = -EINVAL; 605 goto out; 606 } 607 608 ret = __acpi_get_psd_map(all_cpu_data, cpc_pptr); 609 610 out: 611 for_each_possible_cpu(i) { 612 cpc_ptr = cpc_pptr[i]; 613 if (cpc_ptr) > 614 kfree(cpc_ptr); 615 } 616 kfree(cpc_pptr); 617 618 return ret; 619 } 620 EXPORT_SYMBOL_GPL(acpi_get_psd_map); 621 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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