Re: [PATCH 3/7] security,overlayfs: Provide security hook for copy up of xattrs for overlay file

[kbuild test robot]

Hi,

[auto build test ERROR on next-20160708]
[also build test ERROR on v4.7-rc6]
[cannot apply to pcmoore-selinux/next security/next v4.7-rc6 v4.7-rc5 v4.7-rc4]
[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/Vivek-Goyal/Overlayfs-SELinux-Support/20160709-002635
config: mips-gpr_defconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

   In file included from arch/mips/kernel/ptrace.c:27:0:
   include/linux/security.h: In function 'security_inode_copy_up_xattr':
>> include/linux/security.h:770:2: error: statement with no effect [-Werror=unused-value]
     -EOPNOTSUPP;
     ^
   include/linux/security.h:771:1: error: no return statement in function returning non-void [-Werror=return-type]
    }
    ^
   cc1: all warnings being treated as errors

vim +770 include/linux/security.h

   764	{
   765		return 0;
   766	}
   767	
   768	static inline int security_inode_copy_up_xattr(const char *name)
   769	{
 > 770		-EOPNOTSUPP;
   771	}
   772	
   773	static inline int security_file_permission(struct file *file, int mask)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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