tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 1e43c377a79f9189fea8f2711b399d4e8b4e609b commit: ec6347bb43395cb92126788a1a5b25302543f815 x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() date: 6 months ago config: x86_64-randconfig-r002-20210330 (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/torvalds/linux.git/commit/?id=ec6347bb43395cb92126788a1a5b25302543f815 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ec6347bb43395cb92126788a1a5b25302543f815 # 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 <l...@intel.com>
All warnings (new ones prefixed by >>):
>> arch/x86/lib/copy_mc.c:30:1: warning: no previous prototype for
>> 'copy_mc_fragile_handle_tail' [-Wmissing-prototypes]
30 | copy_mc_fragile_handle_tail(char *to, char *from, unsigned len)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/copy_mc_fragile_handle_tail +30 arch/x86/lib/copy_mc.c
24
25 /*
26 * Similar to copy_user_handle_tail, probe for the write fault point, or
27 * source exception point.
28 */
29 __visible notrace unsigned long
> 30 copy_mc_fragile_handle_tail(char *to, char *from, unsigned len)
31 {
32 for (; len; --len, to++, from++)
33 if (copy_mc_fragile(to, from, 1))
34 break;
35 return len;
36 }
37 #else
38 /*
39 * No point in doing careful copying, or consulting a static key when
40 * there is no #MC handler in the CONFIG_X86_MCE=n case.
41 */
42 void enable_copy_mc_fragile(void)
43 {
44 }
45 #define copy_mc_fragile_enabled (0)
46 #endif
47
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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
