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Date: Sun, 24 Apr 2022 12:51:42 +0800
From: kernel test robot <lkp@...el.com>
To: Emil Renner Berthing <kernel@...il.dk>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [esmil:visionfive 55/56] mm/kasan/shadow.c:69:16: error: implicit
declaration of function '__memcpy'; did you mean 'memcpy'?
tree: https://github.com/esmil/linux visionfive
head: 0729a282564fe3940277937536b1e67f98885c49
commit: 5e9aafc7c7b6e7aef5f6285688311fdea914a385 [55/56] riscv: Fix no previous prototype warning
config: riscv-randconfig-m031-20220424 (https://download.01.org/0day-ci/archive/20220424/202204241255.IvPnAd0Y-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/esmil/linux/commit/5e9aafc7c7b6e7aef5f6285688311fdea914a385
git remote add esmil https://github.com/esmil/linux
git fetch --no-tags esmil visionfive
git checkout 5e9aafc7c7b6e7aef5f6285688311fdea914a385
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash mm/kasan/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
mm/kasan/common.c: In function '__kasan_init_slab_obj':
>> mm/kasan/common.c:319:25: error: implicit declaration of function '__memset'; did you mean 'memset'? [-Werror=implicit-function-declaration]
319 | __memset(alloc_meta, 0, sizeof(*alloc_meta));
| ^~~~~~~~
| memset
cc1: some warnings being treated as errors
--
mm/kasan/generic.c: In function '__asan_set_shadow_00':
>> mm/kasan/generic.c:320:17: error: implicit declaration of function '__memset'; did you mean 'memset'? [-Werror=implicit-function-declaration]
320 | __memset((void *)addr, 0x##byte, size); \
| ^~~~~~~~
mm/kasan/generic.c:324:1: note: in expansion of macro 'DEFINE_ASAN_SET_SHADOW'
324 | DEFINE_ASAN_SET_SHADOW(00);
| ^~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
mm/kasan/shadow.c: In function 'memset':
>> mm/kasan/shadow.c:47:16: error: implicit declaration of function '__memset'; did you mean 'memset'? [-Werror=implicit-function-declaration]
47 | return __memset(addr, c, len);
| ^~~~~~~~
| memset
>> mm/kasan/shadow.c:47:16: warning: returning 'int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
47 | return __memset(addr, c, len);
| ^~~~~~~~~~~~~~~~~~~~~~
mm/kasan/shadow.c: In function 'memcpy':
>> mm/kasan/shadow.c:69:16: error: implicit declaration of function '__memcpy'; did you mean 'memcpy'? [-Werror=implicit-function-declaration]
69 | return __memcpy(dest, src, len);
| ^~~~~~~~
| memcpy
mm/kasan/shadow.c:69:16: warning: returning 'int' from a function with return type 'void *' makes pointer from integer without a cast [-Wint-conversion]
69 | return __memcpy(dest, src, len);
| ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +69 mm/kasan/shadow.c
bb359dbcb70085 Andrey Konovalov 2020-12-22 40
bb359dbcb70085 Andrey Konovalov 2020-12-22 41 #undef memset
bb359dbcb70085 Andrey Konovalov 2020-12-22 42 void *memset(void *addr, int c, size_t len)
bb359dbcb70085 Andrey Konovalov 2020-12-22 43 {
f00748bfa0246c Andrey Konovalov 2021-02-24 44 if (!kasan_check_range((unsigned long)addr, len, true, _RET_IP_))
bb359dbcb70085 Andrey Konovalov 2020-12-22 45 return NULL;
bb359dbcb70085 Andrey Konovalov 2020-12-22 46
bb359dbcb70085 Andrey Konovalov 2020-12-22 @47 return __memset(addr, c, len);
bb359dbcb70085 Andrey Konovalov 2020-12-22 48 }
bb359dbcb70085 Andrey Konovalov 2020-12-22 49
bb359dbcb70085 Andrey Konovalov 2020-12-22 50 #ifdef __HAVE_ARCH_MEMMOVE
bb359dbcb70085 Andrey Konovalov 2020-12-22 51 #undef memmove
bb359dbcb70085 Andrey Konovalov 2020-12-22 52 void *memmove(void *dest, const void *src, size_t len)
bb359dbcb70085 Andrey Konovalov 2020-12-22 53 {
f00748bfa0246c Andrey Konovalov 2021-02-24 54 if (!kasan_check_range((unsigned long)src, len, false, _RET_IP_) ||
f00748bfa0246c Andrey Konovalov 2021-02-24 55 !kasan_check_range((unsigned long)dest, len, true, _RET_IP_))
bb359dbcb70085 Andrey Konovalov 2020-12-22 56 return NULL;
bb359dbcb70085 Andrey Konovalov 2020-12-22 57
bb359dbcb70085 Andrey Konovalov 2020-12-22 58 return __memmove(dest, src, len);
bb359dbcb70085 Andrey Konovalov 2020-12-22 59 }
bb359dbcb70085 Andrey Konovalov 2020-12-22 60 #endif
bb359dbcb70085 Andrey Konovalov 2020-12-22 61
bb359dbcb70085 Andrey Konovalov 2020-12-22 62 #undef memcpy
bb359dbcb70085 Andrey Konovalov 2020-12-22 63 void *memcpy(void *dest, const void *src, size_t len)
bb359dbcb70085 Andrey Konovalov 2020-12-22 64 {
f00748bfa0246c Andrey Konovalov 2021-02-24 65 if (!kasan_check_range((unsigned long)src, len, false, _RET_IP_) ||
f00748bfa0246c Andrey Konovalov 2021-02-24 66 !kasan_check_range((unsigned long)dest, len, true, _RET_IP_))
bb359dbcb70085 Andrey Konovalov 2020-12-22 67 return NULL;
bb359dbcb70085 Andrey Konovalov 2020-12-22 68
bb359dbcb70085 Andrey Konovalov 2020-12-22 @69 return __memcpy(dest, src, len);
bb359dbcb70085 Andrey Konovalov 2020-12-22 70 }
bb359dbcb70085 Andrey Konovalov 2020-12-22 71
:::::: The code at line 69 was first introduced by commit
:::::: bb359dbcb70085a63e8bdbf14837a900750f0cf7 kasan: split out shadow.c from common.c
:::::: TO: Andrey Konovalov <andreyknvl@...gle.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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