[kbuild-all] Re: [PATCH] dm: remove unneeded variable

Hi, Thank you for the patch! Yet something to improve: [auto build test ERROR on device-mapper-dm/for-next] [also build test ERROR on v5.15 next-20211111] [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/cgel-zte-gmail-com/dm-remove-unn... base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next config: i386-debian-10.3 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/dbcfa76d0a7e2af056369733ed58150e4... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review cgel-zte-gmail-com/dm-remove-unneeded-variable/20211111-155437 git checkout dbcfa76d0a7e2af056369733ed58150e479ec0c7 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/md/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/md/dm-ps-round-robin.c:12: drivers/md/dm-ps-round-robin.c: In function 'rr_status': 602 | #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ | ^~ drivers/md/dm-ps-round-robin.c:93:3: note: in expansion of macro 'DMEMIT' 93 | DMEMIT("0 "); | ^~~~~~ include/linux/device-mapper.h:602:22: note: each undeclared identifier is reported only once for each function it appears in 602 | #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ | ^~ drivers/md/dm-ps-round-robin.c:93:3: note: in expansion of macro 'DMEMIT' 93 | DMEMIT("0 "); | ^~~~~~ vim +602 include/linux/device-mapper.h 0da336e5fab75c Alasdair G Kergon 2008-04-24 601 0da336e5fab75c Alasdair G Kergon 2008-04-24 @602 #define DMEMIT(x...) sz += ((sz >= maxlen) ? \ 0da336e5fab75c Alasdair G Kergon 2008-04-24 603 0 : scnprintf(result + sz, maxlen - sz, x)) 0da336e5fab75c Alasdair G Kergon 2008-04-24 604 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org