tree:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb
commit: 808b49da54e640cba5c5c92dee658018a529226b alpha: turn
csum_partial_copy_from_user() into csum_and_copy_from_user()
date: 9 months ago
config: alpha-defconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 808b49da54e640cba5c5c92dee658018a529226b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
>> arch/alpha/lib/csum_partial_copy.c:328:1: error: no previous prototype for
'csum_and_copy_from_user' [-Werror=missing-prototypes]
328 | csum_and_copy_from_user(const void __user *src, void *dst, int len,
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/alpha/lib/csum_partial_copy.c:375:1: error: no previous prototype for
'csum_partial_copy_nocheck' [-Werror=missing-prototypes]
375 | csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
I can't reproduce this (wrong version of gcc) but it looks like adding
#include <asm/checksum.h>
to arch/alpha/lib/csum_partial_copy.c should fix the warnings.
--
~Randy