tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5e63226c72287bc6c6724d4fc7e157af0e3d7908 commit: 8983bfd58d61ab29ab4114089d1f42e1ee6103a8 [8408/10945] platform/x86: lg-laptop: Support for battery charge limit on newer models config: x86_64-buildonly-randconfig-r001-20210828 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=8983bfd58d61ab29ab4114089d1f42e1ee6103a8 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 8983bfd58d61ab29ab4114089d1f42e1ee6103a8 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/string.h:262, from include/linux/bitmap.h:10, from include/linux/cpumask.h:12, from include/linux/smp.h:13, from include/linux/lockdep.h:14, from include/linux/mutex.h:17, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/of.h:17, from include/linux/irqdomain.h:35, from include/linux/acpi.h:13, from drivers/platform/x86/lg-laptop.c:10: In function 'strlen', inlined from 'acpi_add' at drivers/platform/x86/lg-laptop.c:644:6, inlined from 'acpi_add' at drivers/platform/x86/lg-laptop.c:621:12: >> include/linux/fortify-string.h:25:29: warning: argument 1 null where non-null expected [-Wnonnull] 25 | #define __underlying_strlen __builtin_strlen | ^ include/linux/fortify-string.h:60:10: note: in expansion of macro '__underlying_strlen' 60 | return __underlying_strlen(p); | ^~~~~~~~~~~~~~~~~~~ drivers/platform/x86/lg-laptop.c: In function 'acpi_add': include/linux/fortify-string.h:25:29: note: in a call to built-in function '__builtin_strlen' 25 | #define __underlying_strlen __builtin_strlen | ^ include/linux/fortify-string.h:60:10: note: in expansion of macro '__underlying_strlen' 60 | return __underlying_strlen(p); | ^~~~~~~~~~~~~~~~~~~ In function 'strlen', inlined from 'acpi_add' at drivers/platform/x86/lg-laptop.c:660:8, inlined from 'acpi_add' at drivers/platform/x86/lg-laptop.c:621:12: >> include/linux/fortify-string.h:25:29: warning: argument 1 null where non-null expected [-Wnonnull] 25 | #define __underlying_strlen __builtin_strlen | ^ include/linux/fortify-string.h:60:10: note: in expansion of macro '__underlying_strlen' 60 | return __underlying_strlen(p); | ^~~~~~~~~~~~~~~~~~~ drivers/platform/x86/lg-laptop.c: In function 'acpi_add': include/linux/fortify-string.h:25:29: note: in a call to built-in function '__builtin_strlen' 25 | #define __underlying_strlen __builtin_strlen | ^ include/linux/fortify-string.h:60:10: note: in expansion of macro '__underlying_strlen' 60 | return __underlying_strlen(p); | ^~~~~~~~~~~~~~~~~~~ vim +25 include/linux/fortify-string.h a28a6e860c6cf2 Francis Laniel 2021-02-25 4 a28a6e860c6cf2 Francis Laniel 2021-02-25 5 a28a6e860c6cf2 Francis Laniel 2021-02-25 6 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) a28a6e860c6cf2 Francis Laniel 2021-02-25 7 extern void *__underlying_memchr(const void *p, int c, __kernel_size_t size) __RENAME(memchr); a28a6e860c6cf2 Francis Laniel 2021-02-25 8 extern int __underlying_memcmp(const void *p, const void *q, __kernel_size_t size) __RENAME(memcmp); a28a6e860c6cf2 Francis Laniel 2021-02-25 9 extern void *__underlying_memcpy(void *p, const void *q, __kernel_size_t size) __RENAME(memcpy); a28a6e860c6cf2 Francis Laniel 2021-02-25 10 extern void *__underlying_memmove(void *p, const void *q, __kernel_size_t size) __RENAME(memmove); a28a6e860c6cf2 Francis Laniel 2021-02-25 11 extern void *__underlying_memset(void *p, int c, __kernel_size_t size) __RENAME(memset); a28a6e860c6cf2 Francis Laniel 2021-02-25 12 extern char *__underlying_strcat(char *p, const char *q) __RENAME(strcat); a28a6e860c6cf2 Francis Laniel 2021-02-25 13 extern char *__underlying_strcpy(char *p, const char *q) __RENAME(strcpy); a28a6e860c6cf2 Francis Laniel 2021-02-25 14 extern __kernel_size_t __underlying_strlen(const char *p) __RENAME(strlen); a28a6e860c6cf2 Francis Laniel 2021-02-25 15 extern char *__underlying_strncat(char *p, const char *q, __kernel_size_t count) __RENAME(strncat); a28a6e860c6cf2 Francis Laniel 2021-02-25 16 extern char *__underlying_strncpy(char *p, const char *q, __kernel_size_t size) __RENAME(strncpy); a28a6e860c6cf2 Francis Laniel 2021-02-25 17 #else a28a6e860c6cf2 Francis Laniel 2021-02-25 18 #define __underlying_memchr __builtin_memchr a28a6e860c6cf2 Francis Laniel 2021-02-25 19 #define __underlying_memcmp __builtin_memcmp a28a6e860c6cf2 Francis Laniel 2021-02-25 20 #define __underlying_memcpy __builtin_memcpy a28a6e860c6cf2 Francis Laniel 2021-02-25 21 #define __underlying_memmove __builtin_memmove a28a6e860c6cf2 Francis Laniel 2021-02-25 22 #define __underlying_memset __builtin_memset a28a6e860c6cf2 Francis Laniel 2021-02-25 23 #define __underlying_strcat __builtin_strcat a28a6e860c6cf2 Francis Laniel 2021-02-25 24 #define __underlying_strcpy __builtin_strcpy a28a6e860c6cf2 Francis Laniel 2021-02-25 @25 #define __underlying_strlen __builtin_strlen a28a6e860c6cf2 Francis Laniel 2021-02-25 26 #define __underlying_strncat __builtin_strncat a28a6e860c6cf2 Francis Laniel 2021-02-25 27 #define __underlying_strncpy __builtin_strncpy a28a6e860c6cf2 Francis Laniel 2021-02-25 28 #endif a28a6e860c6cf2 Francis Laniel 2021-02-25 29 :::::: The code at line 25 was first introduced by commit :::::: a28a6e860c6cf231cf3c5171c75c342adcd00406 string.h: move fortified functions definitions in a dedicated header. :::::: TO: Francis Laniel <laniel_francis@xxxxxxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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