Re: [PATCH v13 7/9] open: openat2(2) syscall

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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 <lkp@xxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip


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