Hi Daniel, Thank you for the patch! Yet something to improve: [auto build test ERROR on pcmoore-selinux/next] [also build test ERROR on security/next-testing linux/master linus/master v5.6-rc1 next-20200214] [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/20200215-034039 base: https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git next config: i386-tinyconfig (attached as .config) compiler: gcc-7 (Debian 7.5.0-4) 7.5.0 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 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 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org