Hi Yang, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.11-rc6 next-20210125] [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/Yang-Li/ocfs2-Remove-unneeded-return-variable/20210204-111516 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 61556703b610a104de324e4f061dc6cf7b218b46 config: riscv-randconfig-r023-20210203 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 275c6af7d7f1ed63a03d05b4484413e447133269) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/5bb80175fa7cb498c4ed06c376ea16b672477df7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yang-Li/ocfs2-Remove-unneeded-return-variable/20210204-111516 git checkout 5bb80175fa7cb498c4ed06c376ea16b672477df7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> fs/ocfs2/stack_o2cb.c:69:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_NOQUEUE, LKM_NOQUEUE); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:70:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_CANCEL, LKM_CANCEL); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:71:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_CONVERT, LKM_CONVERT); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:72:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_VALBLK, LKM_VALBLK); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:73:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_IVVALBLK, LKM_INVVALBLK); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:74:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_ORPHAN, LKM_ORPHAN); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:75:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_FORCEUNLOCK, LKM_FORCE); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:76:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_TIMEOUT, LKM_TIMEOUT); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ fs/ocfs2/stack_o2cb.c:77:2: error: use of undeclared identifier 'o2dlm_flags' map_flag(DLM_LKF_LOCAL, LKM_LOCAL); ^ fs/ocfs2/stack_o2cb.c:65:3: note: expanded from macro 'map_flag' o2dlm_flags |= (_o2dlm); \ ^ 9 errors generated. vim +/o2dlm_flags +69 fs/ocfs2/stack_o2cb.c e3dad42bf993a0 Joel Becker 2008-02-01 61 e3dad42bf993a0 Joel Becker 2008-02-01 62 #define map_flag(_generic, _o2dlm) \ e3dad42bf993a0 Joel Becker 2008-02-01 63 if (flags & (_generic)) { \ e3dad42bf993a0 Joel Becker 2008-02-01 64 flags &= ~(_generic); \ e3dad42bf993a0 Joel Becker 2008-02-01 65 o2dlm_flags |= (_o2dlm); \ e3dad42bf993a0 Joel Becker 2008-02-01 66 } e3dad42bf993a0 Joel Becker 2008-02-01 67 static int flags_to_o2dlm(u32 flags) e3dad42bf993a0 Joel Becker 2008-02-01 68 { e3dad42bf993a0 Joel Becker 2008-02-01 @69 map_flag(DLM_LKF_NOQUEUE, LKM_NOQUEUE); e3dad42bf993a0 Joel Becker 2008-02-01 70 map_flag(DLM_LKF_CANCEL, LKM_CANCEL); e3dad42bf993a0 Joel Becker 2008-02-01 71 map_flag(DLM_LKF_CONVERT, LKM_CONVERT); e3dad42bf993a0 Joel Becker 2008-02-01 72 map_flag(DLM_LKF_VALBLK, LKM_VALBLK); e3dad42bf993a0 Joel Becker 2008-02-01 73 map_flag(DLM_LKF_IVVALBLK, LKM_INVVALBLK); e3dad42bf993a0 Joel Becker 2008-02-01 74 map_flag(DLM_LKF_ORPHAN, LKM_ORPHAN); e3dad42bf993a0 Joel Becker 2008-02-01 75 map_flag(DLM_LKF_FORCEUNLOCK, LKM_FORCE); e3dad42bf993a0 Joel Becker 2008-02-01 76 map_flag(DLM_LKF_TIMEOUT, LKM_TIMEOUT); e3dad42bf993a0 Joel Becker 2008-02-01 77 map_flag(DLM_LKF_LOCAL, LKM_LOCAL); e3dad42bf993a0 Joel Becker 2008-02-01 78 e3dad42bf993a0 Joel Becker 2008-02-01 79 /* map_flag() should have cleared every flag passed in */ e3dad42bf993a0 Joel Becker 2008-02-01 80 BUG_ON(flags != 0); e3dad42bf993a0 Joel Becker 2008-02-01 81 5bb80175fa7cb4 Yang Li 2021-02-04 82 return 0; e3dad42bf993a0 Joel Becker 2008-02-01 83 } e3dad42bf993a0 Joel Becker 2008-02-01 84 #undef map_flag e3dad42bf993a0 Joel Becker 2008-02-01 85 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org