Hi Shaomin, Thank you for the patch! Yet something to improve: [auto build test ERROR on v6.0-rc2] [also build test ERROR on linus/master next-20220826] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Shaomin-Deng/dm-Remove-the-unneeeded-variable/20220828-004044 base: 1c23f9e627a7b412978b4e852793c5e3c3efc555 config: riscv-randconfig-r003-20220828 (https://download.01.org/0day-ci/archive/20220828/202208280313.Avg378Ql-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project a2100daf12fb980a29fd1a9c85ccf8eaaaf79730) 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/intel-lab-lkp/linux/commit/fd20974ffc753b102401c766eb62117c276a1527 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Shaomin-Deng/dm-Remove-the-unneeeded-variable/20220828-004044 git checkout fd20974ffc753b102401c766eb62117c276a1527 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/md/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/md/dm-log.c:810:3: error: use of undeclared identifier 'sz' DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name, ^ include/linux/device-mapper.h:615:22: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ >> drivers/md/dm-log.c:810:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:615:30: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ >> drivers/md/dm-log.c:810:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:616:29: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ >> drivers/md/dm-log.c:810:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:616:42: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ drivers/md/dm-log.c:817:3: error: use of undeclared identifier 'sz' DMEMIT("%s %u %s %u ", log->type->name, ^ include/linux/device-mapper.h:615:22: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ drivers/md/dm-log.c:817:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:615:30: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ drivers/md/dm-log.c:817:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:616:29: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ drivers/md/dm-log.c:817:3: error: use of undeclared identifier 'sz' include/linux/device-mapper.h:616:42: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ drivers/md/dm-log.c:820:3: error: use of undeclared identifier 'sz' DMEMIT_SYNC; ^ drivers/md/dm-log.c:776:3: note: expanded from macro 'DMEMIT_SYNC' DMEMIT("%ssync ", lc->sync == NOSYNC ? "no" : "") ^ include/linux/device-mapper.h:615:22: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ drivers/md/dm-log.c:820:3: error: use of undeclared identifier 'sz' drivers/md/dm-log.c:776:3: note: expanded from macro 'DMEMIT_SYNC' DMEMIT("%ssync ", lc->sync == NOSYNC ? "no" : "") ^ include/linux/device-mapper.h:615:30: note: expanded from macro 'DMEMIT' #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ ^ drivers/md/dm-log.c:820:3: error: use of undeclared identifier 'sz' drivers/md/dm-log.c:776:3: note: expanded from macro 'DMEMIT_SYNC' DMEMIT("%ssync ", lc->sync == NOSYNC ? "no" : "") ^ include/linux/device-mapper.h:616:29: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ drivers/md/dm-log.c:820:3: error: use of undeclared identifier 'sz' drivers/md/dm-log.c:776:3: note: expanded from macro 'DMEMIT_SYNC' DMEMIT("%ssync ", lc->sync == NOSYNC ? "no" : "") ^ include/linux/device-mapper.h:616:42: note: expanded from macro 'DMEMIT' 0 : scnprintf(result + sz, maxlen - sz, x)) ^ 12 errors generated. vim +/sz +810 drivers/md/dm-log.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 802 416cd17b198221 Heinz Mauelshagen 2008-04-24 803 static int disk_status(struct dm_dirty_log *log, status_type_t status, ^1da177e4c3f41 Linus Torvalds 2005-04-16 804 char *result, unsigned int maxlen) ^1da177e4c3f41 Linus Torvalds 2005-04-16 805 { ^1da177e4c3f41 Linus Torvalds 2005-04-16 806 struct log_c *lc = log->context; ^1da177e4c3f41 Linus Torvalds 2005-04-16 807 ^1da177e4c3f41 Linus Torvalds 2005-04-16 808 switch(status) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 809 case STATUSTYPE_INFO: 315dcc226f066c Jonathan E Brassow 2007-05-09 @810 DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name, 64b30c46e866bb Mikulas Patocka 2009-12-10 811 lc->log_dev_flush_failed ? 'F' : 64b30c46e866bb Mikulas Patocka 2009-12-10 812 lc->log_dev_failed ? 'D' : 64b30c46e866bb Mikulas Patocka 2009-12-10 813 'A'); ^1da177e4c3f41 Linus Torvalds 2005-04-16 814 break; ^1da177e4c3f41 Linus Torvalds 2005-04-16 815 ^1da177e4c3f41 Linus Torvalds 2005-04-16 816 case STATUSTYPE_TABLE: ^1da177e4c3f41 Linus Torvalds 2005-04-16 817 DMEMIT("%s %u %s %u ", log->type->name, 315dcc226f066c Jonathan E Brassow 2007-05-09 818 lc->sync == DEFAULTSYNC ? 2 : 3, lc->log_dev->name, ^1da177e4c3f41 Linus Torvalds 2005-04-16 819 lc->region_size); ^1da177e4c3f41 Linus Torvalds 2005-04-16 820 DMEMIT_SYNC; 8ec456629d0bf0 Tushar Sugandhi 2021-07-12 821 break; 8ec456629d0bf0 Tushar Sugandhi 2021-07-12 822 8ec456629d0bf0 Tushar Sugandhi 2021-07-12 823 case STATUSTYPE_IMA: 8ec456629d0bf0 Tushar Sugandhi 2021-07-12 824 *result = '\0'; 8ec456629d0bf0 Tushar Sugandhi 2021-07-12 825 break; ^1da177e4c3f41 Linus Torvalds 2005-04-16 826 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 827 fd20974ffc753b Shaomin Deng 2022-08-27 828 return 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 829 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 830 -- 0-DAY CI Kernel Test Service https://01.org/lkp -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
