Hi Xiaofei, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on v5.12-rc6 next-20210401] [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/Xiaofei-Tan/tty-Fix-some-coding-style-issues/20210405-113900 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing config: x86_64-randconfig-a004-20210405 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 2760a808b9916a2839513b7fd7314a464f52481e) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/da18c35dce46cd938810b3ca12275fac9c97f64d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Xiaofei-Tan/tty-Fix-some-coding-style-issues/20210405-113900 git checkout da18c35dce46cd938810b3ca12275fac9c97f64d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/tty/sysrq.c:558:3: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation] return op_p; ^ drivers/tty/sysrq.c:555:2: note: previous statement is here if (i != -1) ^ 1 warning generated. vim +/if +558 drivers/tty/sysrq.c ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 545 ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 546 /* ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 547 * get and put functions for the table, exposed to modules. ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 548 */ 23cbedf812ff7c drivers/tty/sysrq.c Emil Velikov 2020-05-13 549 static const struct sysrq_key_op *__sysrq_get_key_op(int key) bf36b9011e3c5b drivers/char/sysrq.c Andrew Morton 2006-03-25 550 { 23cbedf812ff7c drivers/tty/sysrq.c Emil Velikov 2020-05-13 551 const struct sysrq_key_op *op_p = NULL; ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 552 int i; ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 553 ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 554 i = sysrq_key_table_key2index(key); bf36b9011e3c5b drivers/char/sysrq.c Andrew Morton 2006-03-25 555 if (i != -1) bf36b9011e3c5b drivers/char/sysrq.c Andrew Morton 2006-03-25 556 op_p = sysrq_key_table[i]; 97f5f0cd8cd0a0 drivers/char/sysrq.c Dmitry Torokhov 2010-03-21 557 ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 @558 return op_p; ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 559 } ^1da177e4c3f41 drivers/char/sysrq.c Linus Torvalds 2005-04-16 560 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org