Hi Chun-Yi", I love your patch! Yet something to improve: [auto build test ERROR on cryptodev/master] [also build test ERROR on linus/master v5.13-rc2 next-20210521] [cannot apply to crypto/master sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Lee-Chun-Yi/Check-codeSigning-extended-key-usage-extension/20210522-220349 base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: sparc64-randconfig-s032-20210522 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://github.com/0day-ci/linux/commit/928555596c9cd62caabf8777ed8152ddac2609ef git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Lee-Chun-Yi/Check-codeSigning-extended-key-usage-extension/20210522-220349 git checkout 928555596c9cd62caabf8777ed8152ddac2609ef # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=sparc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from security/integrity/digsig.c:18: >> include/keys/system_keyring.h:72:1: error: expected identifier or '(' before '{' token 72 | { | ^ In file included from security/integrity/digsig.c:18: include/keys/system_keyring.h:70:19: warning: 'is_key_on_revocation_list' declared 'static' but never defined [-Wunused-function] 70 | static inline int is_key_on_revocation_list(struct pkcs7_message *pkcs7, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +72 include/keys/system_keyring.h 734114f8782f6c David Howells 2017-04-03 60 56c5812623f953 Eric Snowberg 2021-01-22 61 #ifdef CONFIG_SYSTEM_REVOCATION_LIST 56c5812623f953 Eric Snowberg 2021-01-22 62 extern int add_key_to_revocation_list(const char *data, size_t size); 928555596c9cd6 Lee, Chun-Yi 2021-05-21 63 extern int is_key_on_revocation_list(struct pkcs7_message *pkcs7, 928555596c9cd6 Lee, Chun-Yi 2021-05-21 64 enum key_being_used_for usage); 56c5812623f953 Eric Snowberg 2021-01-22 65 #else 56c5812623f953 Eric Snowberg 2021-01-22 66 static inline int add_key_to_revocation_list(const char *data, size_t size) 56c5812623f953 Eric Snowberg 2021-01-22 67 { 56c5812623f953 Eric Snowberg 2021-01-22 68 return 0; 56c5812623f953 Eric Snowberg 2021-01-22 69 } 928555596c9cd6 Lee, Chun-Yi 2021-05-21 70 static inline int is_key_on_revocation_list(struct pkcs7_message *pkcs7, 928555596c9cd6 Lee, Chun-Yi 2021-05-21 71 enum key_being_used_for usage); 56c5812623f953 Eric Snowberg 2021-01-22 @72 { 56c5812623f953 Eric Snowberg 2021-01-22 73 return -ENOKEY; 56c5812623f953 Eric Snowberg 2021-01-22 74 } 56c5812623f953 Eric Snowberg 2021-01-22 75 #endif 56c5812623f953 Eric Snowberg 2021-01-22 76 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org