linux-kernel - Re: [PATCH 2/7] Add a concept of a "secure" anonymous file

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Date:   Mon, 14 Oct 2019 11:01:16 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Daniel Colascione <dancol@...gle.com>
Cc:     kbuild-all@...ts.01.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org, lokeshgidra@...gle.com,
        dancol@...gle.com, nnk@...gle.com, nosh@...gle.com,
        timmurray@...gle.com
Subject: Re: [PATCH 2/7] Add a concept of a "secure" anonymous file

Hi Daniel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.4-rc2 next-20191011]
[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/Daniel-Colascione/Harden-userfaultfd/20191014-102741
config: i386-tinyconfig (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@...el.com>

All errors (new ones prefixed by >>):

   fs/anon_inodes.c: In function 'anon_inode_make_secure_inode':
>> fs/anon_inodes.c:67:10: error: implicit declaration of function 'security_inode_init_security_anon'; did you mean 'security_inode_init_security'? [-Werror=implicit-function-declaration]
     error = security_inode_init_security_anon(inode, name, fops);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
             security_inode_init_security
   cc1: some warnings being treated as errors

vim +67 fs/anon_inodes.c

    57	
    58	struct inode *anon_inode_make_secure_inode(const char *name,
    59						   const struct file_operations *fops)
    60	{
    61		struct inode *inode;
    62		int error;
    63		inode = alloc_anon_inode(anon_inode_mnt->mnt_sb);
    64		if (IS_ERR(inode))
    65			return ERR_PTR(PTR_ERR(inode));
    66		inode->i_flags &= ~S_PRIVATE;
  > 67		error =	security_inode_init_security_anon(inode, name, fops);
    68		if (error) {
    69			iput(inode);
    70			return ERR_PTR(error);
    71		}
    72		return inode;
    73	}
    74	

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