Hi Aleksa, Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master] [cannot apply to v5.4-rc1 next-20190930] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Aleksa-Sarai/namei-openat2-2-path-resolution-restrictions/20191001-025628 config: i386-defconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All errors (new ones prefixed by >>): fs/open.c: In function '__do_sys_openat2': >> fs/open.c:1173:8: error: implicit declaration of function >> 'copy_struct_from_user'; did you mean 'copy_siginfo_from_user'? >> [-Werror=implicit-function-declaration] err = copy_struct_from_user(&tmp, sizeof(tmp), how, usize); ^~~~~~~~~~~~~~~~~~~~~ copy_siginfo_from_user cc1: some warnings being treated as errors vim +1173 fs/open.c 1163 1164 SYSCALL_DEFINE4(openat2, int, dfd, const char __user *, filename, 1165 const struct open_how __user *, how, size_t, usize) 1166 { 1167 int err; 1168 struct open_how tmp; 1169 1170 if (unlikely(usize < OPEN_HOW_SIZE_VER0)) 1171 return -EINVAL; 1172 > 1173 err = copy_struct_from_user(&tmp, sizeof(tmp), how, usize); 1174 if (err) 1175 return err; 1176 1177 if (force_o_largefile()) 1178 tmp.flags |= O_LARGEFILE; 1179 1180 return do_sys_open(dfd, filename, &tmp); 1181 } 1182 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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