Hi Wythe", Thank you for the patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/D-Wythe/Optimizing-performance-in-short-lived-scenarios/20220205-143638 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git c78b8b20e34920231eda02fb40c7aca7d88be837 config: x86_64-randconfig-s021 (https://download.01.org/0day-ci/archive/20220205/202202052019.I6XO0mge-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/c750e361a42f2d32b4e041edfd0b51d9020a936c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review D-Wythe/Optimizing-performance-in-short-lived-scenarios/20220205-143638 git checkout c750e361a42f2d32b4e041edfd0b51d9020a936c # save the config file to linux build tree mkdir build_dir make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash net/smc/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> net/smc/af_smc.c:62:25: sparse: sparse: symbol 'smc_tcp_ls_wq' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx