[kbuild-all] Re: arch/alpha/lib/csum_partial_copy.c:328:1: error: no previous prototype for 'csum_and_copy_from_user'

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&gt; 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