[kbuild-all] [linux-next:master 3021/8423] drivers/scsi/qla2xxx/qla_edif.c:713:45: warning: taking address of packed member 'u' of class or structure 'auth_complete_cmd' may result in an unaligned pointer value

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b9011c7e671dbbf59bb753283ddfd03f0c9eb865 commit: 8a4bb2c1dd623b5a71609de5b04ef3b5086b0a3e [3021/8423] scsi: qla2xxx: edif: Add authentication pass + fail bsgs config: i386-randconfig-r023-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 44d0a99a12ec7ead4d2f5ef649ba05b40f6d463d) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 8a4bb2c1dd623b5a71609de5b04ef3b5086b0a3e # 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 <lkp(a)intel.com&gt; 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/scsi/qla2xxx/qla_edif.c:6: In file included from drivers/scsi/qla2xxx/qla_def.h:12: 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/scsi/qla2xxx/qla_edif.c:463:6: warning: no previous prototype for function 'qla2x00_release_all_sadb' [-Wmissing-prototypes] void qla2x00_release_all_sadb(struct scsi_qla_host *vha, struct fc_port *fcport) ^ drivers/scsi/qla2xxx/qla_edif.c:463:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void qla2x00_release_all_sadb(struct scsi_qla_host *vha, struct fc_port *fcport) ^ static fcport = qla2x00_find_fcport_by_pid(vha, &appplogiok.u.d_id); ^~~~~~~~~~~~~~~~~ drivers/scsi/qla2xxx/qla_edif.c:822:45: warning: taking address of packed member 'u' of class or structure 'auth_complete_cmd' may result in an unaligned pointer value [-Waddress-of-packed-member] fcport = qla2x00_find_fcport_by_pid(vha, &appplogifail.u.d_id); ^~~~~~~~~~~~~~~~~~~ drivers/scsi/qla2xxx/qla_edif.c:1306:44: warning: taking address of packed member 'port_id' of class or structure 'qla_sa_update_frame' may result in an unaligned pointer value [-Waddress-of-packed-member] fcport = qla2x00_find_fcport_by_pid(vha, &sa_frame.port_id); ^~~~~~~~~~~~~~~~ 6 warnings generated. vim +713 drivers/scsi/qla2xxx/qla_edif.c 682 683 /** 684 * qla_edif_app_authok - authentication by app succeeded. Driver can proceed 685 * with prli 686 * @vha: host adapter pointer 687 * @bsg_job: user request 688 */ 689 static int 690 qla_edif_app_authok(scsi_qla_host_t *vha, struct bsg_job *bsg_job) 691 { 692 int32_t rval = 0; 693 struct auth_complete_cmd appplogiok; 694 struct app_plogi_reply appplogireply = {0}; 695 struct fc_bsg_reply *bsg_reply = bsg_job->reply; 696 fc_port_t *fcport = NULL; 697 port_id_t portid = {0}; 698 699 sg_copy_to_buffer(bsg_job->request_payload.sg_list, 700 bsg_job->request_payload.sg_cnt, &appplogiok, 701 sizeof(struct auth_complete_cmd)); 702 703 switch (appplogiok.type) { 704 case PL_TYPE_WWPN: 705 fcport = qla2x00_find_fcport_by_wwpn(vha, 706 appplogiok.u.wwpn, 0); 707 if (!fcport) 708 ql_dbg(ql_dbg_edif, vha, 0x911d, 709 "%s wwpn lookup failed: %8phC\n", 710 __func__, appplogiok.u.wwpn); 711 break; 712 case PL_TYPE_DID: 714 if (!fcport) 715 ql_dbg(ql_dbg_edif, vha, 0x911d, 716 "%s d_id lookup failed: %x\n", __func__, 717 portid.b24); 718 break; 719 default: 720 ql_dbg(ql_dbg_edif, vha, 0x911d, 721 "%s undefined type: %x\n", __func__, 722 appplogiok.type); 723 break; 724 } 725 726 if (!fcport) { 727 SET_DID_STATUS(bsg_reply->result, DID_ERROR); 728 goto errstate_exit; 729 } 730 731 /* 732 * if port is online then this is a REKEY operation 733 * Only do sa update checking 734 */ 735 if (atomic_read(&fcport->state) == FCS_ONLINE) { 736 ql_dbg(ql_dbg_edif, vha, 0x911d, 737 "%s Skipping PRLI complete based on rekey\n", __func__); 738 appplogireply.prli_status = 1; 739 SET_DID_STATUS(bsg_reply->result, DID_OK); 740 qla_edif_app_chk_sa_update(vha, fcport, &appplogireply); 741 goto errstate_exit; 742 } 743 744 /* make sure in AUTH_PENDING or else reject */ 745 if (fcport->disc_state != DSC_LOGIN_AUTH_PEND) { 746 ql_dbg(ql_dbg_edif, vha, 0x911e, 747 "%s wwpn %8phC is not in auth pending state (%x)\n", 748 __func__, fcport->port_name, fcport->disc_state); 749 SET_DID_STATUS(bsg_reply->result, DID_OK); 750 appplogireply.prli_status = 0; 751 goto errstate_exit; 752 } 753 754 SET_DID_STATUS(bsg_reply->result, DID_OK); 755 appplogireply.prli_status = 1; 756 if (!(fcport->edif.rx_sa_set && fcport->edif.tx_sa_set)) { 757 ql_dbg(ql_dbg_edif, vha, 0x911e, 758 "%s: wwpn %8phC Both SA indexes has not been SET TX %d, RX %d.\n", 759 __func__, fcport->port_name, fcport->edif.tx_sa_set, 760 fcport->edif.rx_sa_set); 761 SET_DID_STATUS(bsg_reply->result, DID_OK); 762 appplogireply.prli_status = 0; 763 goto errstate_exit; 764 765 } else { 766 ql_dbg(ql_dbg_edif, vha, 0x911e, 767 "%s wwpn %8phC Both SA(s) updated.\n", __func__, 768 fcport->port_name); 769 fcport->edif.rx_sa_set = fcport->edif.tx_sa_set = 0; 770 fcport->edif.rx_sa_pending = fcport->edif.tx_sa_pending = 0; 771 } 772 773 if (qla_ini_mode_enabled(vha)) { 774 ql_dbg(ql_dbg_edif, vha, 0x911e, 775 "%s AUTH complete - RESUME with prli for wwpn %8phC\n", 776 __func__, fcport->port_name); 777 qla_edif_reset_auth_wait(fcport, DSC_LOGIN_PEND, 1); 778 qla24xx_post_prli_work(vha, fcport); 779 } 780 781 errstate_exit: 782 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 783 sg_copy_from_buffer(bsg_job->reply_payload.sg_list, 784 bsg_job->reply_payload.sg_cnt, &appplogireply, 785 sizeof(struct app_plogi_reply)); 786 787 return rval; 788 } 789 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org