Hi Dan, I love your patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v4.17-rc3 next-20180501] [cannot apply to tip/x86/core] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Dan-Williams/use-memcpy_mcsafe-for-copy_to_iter/20180502-045742 config: i386-randconfig-s1-201817 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): lib/iov_iter.c: In function 'copyout_mcsafe': >> lib/iov_iter.c:146:7: error: implicit declaration of function >> 'copy_to_user_mcsafe' [-Werror=implicit-function-declaration] n = copy_to_user_mcsafe((__force void *) to, from, n); ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/copy_to_user_mcsafe +146 lib/iov_iter.c 141 142 static int copyout_mcsafe(void __user *to, const void *from, size_t n) 143 { 144 if (access_ok(VERIFY_WRITE, to, n)) { 145 kasan_check_read(from, n); > 146 n = copy_to_user_mcsafe((__force void *) to, from, n); 147 } 148 return n; 149 } 150 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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