Hi Ondrej, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on driver-core/driver-core-testing] [also build test WARNING on v5.0-rc4 next-20190205] [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/Ondrej-Mosnacek/Allow-initializing-the-kernfs-node-s-secctx-based-on-its-parent/20190205-171434 config: x86_64-randconfig-x013-201905 (attached as .config) compiler: gcc-8 (Debian 8.2.0-14) 8.2.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): In file included from fs/kernfs/dir.c:16: include/linux/security.h:796:1: error: expected identifier or '(' before '{' token { ^ >> include/linux/security.h:792:19: warning: 'security_kernfs_init_security' used but never defined static inline int security_kernfs_init_security( ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/security_kernfs_init_security +792 include/linux/security.h d8ad8b49 Vivek Goyal 2016-07-13 791 42221e5e Ondrej Mosnacek 2019-02-05 @792 static inline int security_kernfs_init_security( 42221e5e Ondrej Mosnacek 2019-02-05 793 const struct qstr *qstr, const struct iattr *dir_iattr, 42221e5e Ondrej Mosnacek 2019-02-05 794 struct simple_xattrs *dir_secattr, const struct iattr *iattr, 42221e5e Ondrej Mosnacek 2019-02-05 795 struct simple_xattrs *secattr); 42221e5e Ondrej Mosnacek 2019-02-05 @796 { 42221e5e Ondrej Mosnacek 2019-02-05 797 return 0; 42221e5e Ondrej Mosnacek 2019-02-05 798 } 42221e5e Ondrej Mosnacek 2019-02-05 799 :::::: The code at line 792 was first introduced by commit :::::: 42221e5e86c5c3352de02eeb388cef953cdde4a0 LSM: add new hook for kernfs node initialization :::::: TO: Ondrej Mosnacek :::::: CC: 0day robot --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation