Hi Michael, 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/Michael-Chan/bnxt_en-Implement-new-driver-APIs-to-send-FW-messages/20210829-060031 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git c77225119daa0ca0a9c6c007945c0a87b3e4a2e8 config: i386-randconfig-a002-20210829 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7) 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/0202eb069086d82c68032e9f5db76e0b4cd5a4ca git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Michael-Chan/bnxt_en-Implement-new-driver-APIs-to-send-FW-messages/20210829-060031 git checkout 0202eb069086d82c68032e9f5db76e0b4cd5a4ca # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] In file included from drivers/net/ethernet/broadcom/bnxt/bnxt.c:11: In file included from include/linux/module.h:14: In file included from include/linux/buildid.h:5: In file included from include/linux/mm_types.h:9: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from arch/x86/include/asm/preempt.h:7: In file included from include/linux/thread_info.h:60: arch/x86/include/asm/thread_info.h:172:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] oldframe = __builtin_frame_address(1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/thread_info.h:174:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] frame = __builtin_frame_address(2); ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/broadcom/bnxt/bnxt.c:5996:2: warning: variable 'req' is uninitialized when used here [-Wuninitialized] req->fid = cpu_to_le16(fid); ^~~ drivers/net/ethernet/broadcom/bnxt/bnxt.c:5990:34: note: initialize the variable 'req' to silence this warning struct hwrm_func_qcfg_input *req; ^ = NULL 3 warnings generated. -- clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] In file included from drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:11: In file included from include/linux/ethtool.h:17: In file included from include/linux/compat.h:14: In file included from include/linux/sem.h:5: In file included from include/uapi/linux/sem.h:5: In file included from include/linux/ipc.h:5: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from arch/x86/include/asm/preempt.h:7: In file included from include/linux/thread_info.h:60: arch/x86/include/asm/thread_info.h:172:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] oldframe = __builtin_frame_address(1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/thread_info.h:174:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] frame = __builtin_frame_address(2); ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:1163:7: warning: variable 'rc' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] if (is_valid_ether_addr(bp->vf.mac_addr)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:1178:6: note: uninitialized use occurs here if (rc && strict) { ^~ drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:1163:3: note: remove the 'if' if its condition is always true if (is_valid_ether_addr(bp->vf.mac_addr)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c:1157:8: note: initialize the variable 'rc' to silence this warning int rc; ^ = 0 3 warnings generated. vim +/req +5996 drivers/net/ethernet/broadcom/bnxt/bnxt.c 5986 5987 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings) 5988 { 5989 struct hwrm_func_qcfg_output *resp; 5990 struct hwrm_func_qcfg_input *req; 5991 int rc; 5992 5993 if (bp->hwrm_spec_code < 0x10601) 5994 return 0; 5995 > 5996 req->fid = cpu_to_le16(fid); 5997 resp = hwrm_req_hold(bp, req); 5998 rc = hwrm_req_send(bp, req); 5999 if (!rc) 6000 *tx_rings = le16_to_cpu(resp->alloc_tx_rings); 6001 6002 hwrm_req_drop(bp, req); 6003 return rc; 6004 } 6005 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org