Hi Kashyap, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20201013] [cannot apply to scsi/for-next mkp-scsi/for-next v5.9 v5.9-rc8 v5.9-rc7 v5.9] [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/Kashyap-Desai/add-io_uring-with-IOPOLL-support-in-scsi-layer/20201014-202916 base: f2fb1afc57304f9dd68c20a08270e287470af2eb config: x86_64-randconfig-a004-20201014 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project e7fe3c6dfede8d5781bd000741c3dea7088307a4) 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/4f93510c3e695f6f22822115f6587db68fb40e5c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kashyap-Desai/add-io_uring-with-IOPOLL-support-in-scsi-layer/20201014-202916 git checkout 4f93510c3e695f6f22822115f6587db68fb40e5c # 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 <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/scsi/megaraid/megaraid_sas_fusion.c:3652:5: warning: no previous prototype for function 'megasas_blk_mq_poll' [-Wmissing-prototypes] int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num) ^ drivers/scsi/megaraid/megaraid_sas_fusion.c:3652:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num) ^ static 1 warning generated. vim +/megasas_blk_mq_poll +3652 drivers/scsi/megaraid/megaraid_sas_fusion.c 3651 > 3652 int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num) 3653 { 3654 3655 struct megasas_instance *instance; 3656 int num_entries = 0; 3657 struct fusion_context *fusion; 3658 3659 instance = (struct megasas_instance *)shost->hostdata; 3660 3661 fusion = instance->ctrl_context; 3662 3663 queue_num = queue_num + instance->low_latency_index_start; 3664 3665 if (!atomic_add_unless(&fusion->busy_mq_poll[queue_num], 1, 1)) 3666 return 0; 3667 3668 num_entries = complete_cmd_fusion(instance, queue_num, NULL); 3669 atomic_dec(&fusion->busy_mq_poll[queue_num]); 3670 3671 return num_entries; 3672 } 3673 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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