tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 220bfa0ea761db9406a3cfde3064aa029e829221 commit: bfeb55fc4d6244f8e7cac9c6d0911cfb67089a35 [2544/2544] livepatch: Reduce duplicated arch_klp_mem_{prepare,recycle} config: x86_64-randconfig-123-20241205 (https://download.01.org/0day-ci/archive/20241206/202412060112.hYQNEbRS-lkp@i...) 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/20241206/202412060112.hYQNEbRS-lkp@i...)

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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412060112.hYQNEbRS-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from kernel/livepatch/core.c:16: In file included from include/linux/kallsyms.h:12: In file included from include/linux/mm.h:1554: include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ kernel/livepatch/core.c:68:16: warning: no previous prototype for function 'klp_check_patch_kprobed' [-Wmissing-prototypes] 68 | struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) | ^ kernel/livepatch/core.c:68:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 68 | struct kprobe *klp_check_patch_kprobed(struct klp_patch *patch) | ^ | static kernel/livepatch/core.c:939:12: warning: no previous prototype for function 'arch_klp_func_can_patch' [-Wmissing-prototypes] 939 | int __weak arch_klp_func_can_patch(struct klp_func *func) | ^ kernel/livepatch/core.c:939:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 939 | int __weak arch_klp_func_can_patch(struct klp_func *func) | ^ | static kernel/livepatch/core.c:944:12: warning: no previous prototype for function 'arch_klp_init_func' [-Wmissing-prototypes] 944 | int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) | ^ kernel/livepatch/core.c:944:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 944 | int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) | ^ | static kernel/livepatch/core.c:1288:5: warning: no previous prototype for function 'klp_try_disable_patch' [-Wmissing-prototypes] 1288 | int klp_try_disable_patch(void *data) | ^ kernel/livepatch/core.c:1288:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1288 | int klp_try_disable_patch(void *data) | ^ | static kernel/livepatch/core.c:1322:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] 1322 | void __weak arch_klp_code_modify_prepare(void) | ^ kernel/livepatch/core.c:1322:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1322 | void __weak arch_klp_code_modify_prepare(void) | ^ | static kernel/livepatch/core.c:1326:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] 1326 | void __weak arch_klp_code_modify_post_process(void) | ^ kernel/livepatch/core.c:1326:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1326 | void __weak arch_klp_code_modify_post_process(void) | ^ | static

...

kernel/livepatch/core.c:1330:14: warning: no previous prototype for function 'arch_klp_mem_alloc' [-Wmissing-prototypes]

1330 | void __weak *arch_klp_mem_alloc(size_t size) | ^ kernel/livepatch/core.c:1330:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1330 | void __weak *arch_klp_mem_alloc(size_t size) | ^ | static

...

kernel/livepatch/core.c:1335:13: warning: no previous prototype for function 'arch_klp_mem_free' [-Wmissing-prototypes]

1335 | void __weak arch_klp_mem_free(void *mem) | ^ kernel/livepatch/core.c:1335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1335 | void __weak arch_klp_mem_free(void *mem) | ^ | static kernel/livepatch/core.c:1573:5: warning: no previous prototype for function 'klp_try_enable_patch' [-Wmissing-prototypes] 1573 | int klp_try_enable_patch(void *data) | ^ kernel/livepatch/core.c:1573:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1573 | int klp_try_enable_patch(void *data) | ^ | static 10 warnings generated.

vim +/arch_klp_mem_alloc +1330 kernel/livepatch/core.c

1329

1330 void __weak *arch_klp_mem_alloc(size_t size)

1331 { 1332 return kzalloc(size, GFP_ATOMIC); 1333 } 1334

1335 void __weak arch_klp_mem_free(void *mem)

1336 { 1337 kfree(mem); 1338 } 1339