Hi Hannes, I love your patch! Perhaps something to improve: [auto build test WARNING on herbert-cryptodev-2.6/master] [also build test WARNING on linus/master v5.16-rc2 next-20211123] [cannot apply to herbert-crypto-2.6/master linux-nvme/for-next] [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/Hannes-Reinecke/nvme-In-band-aut... base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: mips-allmodconfig (https://download.01.org/0day-ci/archive/20211123/202111232322.YNIOiBE1-lk...) compiler: mips-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/34bd34a0ee0dbaeeb36f3264e50be3a53... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hannes-Reinecke/nvme-In-band-authentication-support/20211123-204008 git checkout 34bd34a0ee0dbaeeb36f3264e50be3a533491d97 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/nvme/target/fabrics-cmd-auth.c: In function 'nvmet_auth_challenge': drivers/nvme/target/fabrics-cmd-auth.c:7:21: note: in expansion of macro 'KBUILD_MODNAME' 7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | ^~~~~~~~~~~~~~ include/linux/dynamic_debug.h:134:29: note: in expansion of macro 'pr_fmt' 134 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:152:9: note: in expansion of macro '__dynamic_func_call' 152 | __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:162:9: note: in expansion of macro '_dynamic_func_call' 162 | _dynamic_func_call(fmt, __dynamic_pr_debug, \ | ^~~~~~~~~~~~~~~~~~ include/linux/printk.h:570:9: note: in expansion of macro 'dynamic_pr_debug' 570 | dynamic_pr_debug(fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~ drivers/nvme/target/fabrics-cmd-auth.c:350:9: note: in expansion of macro 'pr_debug' 350 | pr_debug("%s: ctrl %d qid %d seq %d transaction %d hl %d dhvlen %lu\n", | ^~~~~~~~ --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org