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: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220828/202208280213.3Ws9aJBm-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # 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 make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/dm-dirty-log.h:16, from drivers/md/dm-log.c:13: drivers/md/dm-log.c: In function 'disk_status': >> include/linux/device-mapper.h:615:22: error: 'sz' undeclared (first use in this function); did you mean 's8'? 615 | #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ | ^~ drivers/md/dm-log.c:810:17: note: in expansion of macro 'DMEMIT' 810 | DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name, | ^~~~~~ include/linux/device-mapper.h:615:22: note: each undeclared identifier is reported only once for each function it appears in 615 | #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ | ^~ drivers/md/dm-log.c:810:17: note: in expansion of macro 'DMEMIT' 810 | DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name, | ^~~~~~ vim +615 include/linux/device-mapper.h 0da336e5fab75c Alasdair G Kergon 2008-04-24 614 0da336e5fab75c Alasdair G Kergon 2008-04-24 @615 #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ 0da336e5fab75c Alasdair G Kergon 2008-04-24 616 0 : scnprintf(result + sz, maxlen - sz, x)) 0da336e5fab75c Alasdair G Kergon 2008-04-24 617 -- 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
