Hi Wythe", Thank you for the patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/intel-lab-lkp/linux/commits/D-Wythe/net-smc-optimize-the-parallelism-of-SMC-R-connections/20220811-014942 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git f86d1fbbe7858884d6754534a0afbb74fc30bc26 config: x86_64-randconfig-s021 (https://download.01.org/0day-ci/archive/20220811/202208111933.9PvuHltH-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/2c1c2e644fb8dbce9b8a004e604792340cbfccb8 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review D-Wythe/net-smc-optimize-the-parallelism-of-SMC-R-connections/20220811-014942 git checkout 2c1c2e644fb8dbce9b8a004e604792340cbfccb8 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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> sparse warnings: (new ones prefixed by >>) >> net/smc/smc_core.c:49:24: sparse: sparse: symbol 'smc_lgr_manager' was not declared. Should it be static? -- 0-DAY CI Kernel Test Service https://01.org/lkp