Hi James, I love your patch! Perhaps something to improve: [auto build test WARNING on mkp-scsi/for-next] [also build test WARNING on scsi/for-next linus/master v5.6 next-20200412] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/James-Smart/efct-Broadcom-Emulex... base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; cppcheck warnings: (new ones prefixed by >>) rc = efct_device_init(); ^ drivers/scsi/elx/efct/efct_driver.c:827:9: note: rc is initialized int rc = -ENODEV; ^ drivers/scsi/elx/efct/efct_driver.c:829:5: note: rc is overwritten rc = efct_device_init(); ^ drivers/scsi/elx/efct/efct_driver.c:255:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc = 0, i; ^ drivers/scsi/elx/efct/efct_driver.c:255:14: warning: The scope of the variable 'i' can be reduced. [variableScope] int rc = 0, i; ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ int rc = 0, i; ^ -- u8 *sns_data = io->rspbuf.virt + sizeof(*fcprsp); ^ drivers/scsi/elx/efct/efct_scsi.c:871:7: note: Assuming that condition '!fcprsp' is not redundant if (!fcprsp) { ^ drivers/scsi/elx/efct/efct_scsi.c:868:48: note: Assignment from 'io->rspbuf.virt' struct fcp_resp_with_ext *fcprsp = io->rspbuf.virt; ^ drivers/scsi/elx/efct/efct_scsi.c:869:34: note: Null pointer addition u8 *sns_data = io->rspbuf.virt + sizeof(*fcprsp); ^ drivers/scsi/elx/efct/efct_scsi.c:467:21: warning: The scope of the variable 'hio' can be reduced. [variableScope] struct efct_hw_io *hio; ^ drivers/scsi/elx/efct/efct_scsi.c:470:6: warning: The scope of the variable 'dispatch' can be reduced. [variableScope] int dispatch; ^ u8 *sns_data = io->rspbuf.virt + sizeof(*fcprsp); ^ drivers/scsi/elx/efct/efct_scsi.c:1045:28: warning: 'io->rspbuf.virt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [arithOperationsOnVoidPointer] rspinfo = io->rspbuf.virt + sizeof(*fcprsp); ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ status = 0; ^ -- drivers/scsi/elx/efct/efct_els.c:1767:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ rscn_page = els->els_req.virt + sizeof(*req); ^ drivers/scsi/elx/efct/efct_els.c:1471:28: warning: 'els->els_req.virt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [arithOperationsOnVoidPointer] rftid = els->els_req.virt + sizeof(*ct); ^ drivers/scsi/elx/efct/efct_els.c:1515:28: warning: 'els->els_req.virt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [arithOperationsOnVoidPointer] rffid = els->els_req.virt + sizeof(*ct); ^ drivers/scsi/elx/efct/efct_els.c:1567:28: warning: 'els->els_req.virt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [arithOperationsOnVoidPointer] gidpt = els->els_req.virt + sizeof(*ct); ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ s_id = U32_MAX; ^ -- rc = efct_hw_get_host_stats(&efct->hw, 1, ^ drivers/scsi/elx/efct/efct_xport.c:329:6: note: rc is assigned rc = efct_hw_get_link_stats(&efct->hw, 0, 1, 1, ^ drivers/scsi/elx/efct/efct_xport.c:341:6: note: rc is overwritten rc = efct_hw_get_host_stats(&efct->hw, 1, ^ drivers/scsi/elx/efct/efct_xport.c:619:17: warning: The scope of the variable 'timeout' can be reduced. [variableScope] unsigned long timeout; ^ drivers/scsi/elx/efct/efct_xport.c:836:23: warning: The scope of the variable 'sport' can be reduced. [variableScope] struct efc_sli_port *sport; ^ drivers/scsi/elx/efct/efct_xport.c:884:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ struct efct *efct; ^ drivers/scsi/elx/efct/efct_xport.c:590:15: note: Shadowed declaration struct efct *efct = NULL; ^ drivers/scsi/elx/efct/efct_xport.c:678:16: note: Shadow variable struct efct *efct; ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ -- drivers/scsi/elx/efct/efct_hw.c:871:16: warning: The scope of the variable 'rq' can be reduced. [variableScope] struct hw_rq *rq; ^ drivers/scsi/elx/efct/efct_hw.c:1224:16: warning: The scope of the variable 'rq' can be reduced. [variableScope] struct hw_rq *rq; ^ drivers/scsi/elx/efct/efct_hw.c:1325:16: warning: The scope of the variable 'rq' can be reduced. [variableScope] struct hw_rq *rq; ^ drivers/scsi/elx/efct/efct_hw.c:2367:7: warning: The scope of the variable 'status' can be reduced. [variableScope] int status; ^ void *arg = io->arg; ^ drivers/scsi/elx/efct/efct_hw.c:383:29: note: Shadowed declaration efct_hw_wq_process_io(void *arg, u8 *cqe, int status) ^ drivers/scsi/elx/efct/efct_hw.c:480:9: note: Shadow variable void *arg = io->arg; ^ drivers/scsi/elx/efct/efct_hw.c:1862:9: warning: Local variable 'arg' shadows outer argument [shadowArgument] void *arg = io->arg; ^ drivers/scsi/elx/efct/efct_hw.c:1842:32: note: Shadowed declaration efct_hw_wq_process_abort(void *arg, u8 *cqe, int status) ^ drivers/scsi/elx/efct/efct_hw.c:1862:9: note: Shadow variable void *arg = io->arg; ^ drivers/scsi/elx/efct/efct_hw.c:1881:9: warning: Local variable 'arg' shadows outer argument [shadowArgument] void *arg = io->abort_arg; ^ drivers/scsi/elx/efct/efct_hw.c:1842:32: note: Shadowed declaration efct_hw_wq_process_abort(void *arg, u8 *cqe, int status) ^ drivers/scsi/elx/efct/efct_hw.c:1881:9: note: Shadow variable void *arg = io->abort_arg; ^ seq = hw->seq_pool + idx * sizeof(*seq); ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ u32 i = 0, io_index = 0; ^ drivers/scsi/elx/efct/efct_hw.c:2056:8: warning: Variable 'i' is assigned a value that is never used. [unreadVariable] u32 i = 0; ^ -- drivers/scsi/elx/libefc/efc_domain.c:392:23: warning: The scope of the variable 'sport' can be reduced. [variableScope] struct efc_sli_port *sport; ^ drivers/scsi/elx/libefc/efc_domain.c:499:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc = 0; ^ drivers/scsi/elx/libefc/efc_domain.c:546:7: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ drivers/scsi/elx/libefc/efc_domain.c:699:7: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ drivers/scsi/elx/libefc/efc_domain.c:866:7: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ int rc; ^ drivers/scsi/elx/libefc/efc_domain.c:499:6: note: Shadowed declaration int rc = 0; ^ drivers/scsi/elx/libefc/efc_domain.c:546:7: note: Shadow variable int rc; ^ -- remote_wwpn = efc_get_wwpn(remote_sp); ^ drivers/scsi/elx/libefc/efc_fabric.c:1270:14: note: remote_wwpn is assigned remote_wwpn = efc_get_wwpn(remote_sp); ^ drivers/scsi/elx/libefc/efc_fabric.c:1274:14: note: remote_wwpn is overwritten remote_wwpn = efc_get_wwpn(remote_sp); ^ drivers/scsi/elx/libefc/efc_fabric.c:26:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ drivers/scsi/elx/libefc/efc_fabric.c:479:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ drivers/scsi/elx/libefc/efc_fabric.c:1502:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ struct fc_gid_pn_resp *gidpt = data + sizeof(*hdr); ^ -- DEF_EFCT_TPG_ATTRIB(generate_node_acls); ^ drivers/scsi/elx/efct/efct_lio.c:1664:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_TPG_ATTRIB(cache_dynamic_acls); ^ drivers/scsi/elx/efct/efct_lio.c:1665:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_TPG_ATTRIB(demo_mode_write_protect); ^ drivers/scsi/elx/efct/efct_lio.c:1666:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_TPG_ATTRIB(prod_mode_write_protect); ^ drivers/scsi/elx/efct/efct_lio.c:1667:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_TPG_ATTRIB(demo_mode_login_only); ^ drivers/scsi/elx/efct/efct_lio.c:1719:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_NPIV_TPG_ATTRIB(generate_node_acls); ^ drivers/scsi/elx/efct/efct_lio.c:1720:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_NPIV_TPG_ATTRIB(cache_dynamic_acls); ^ drivers/scsi/elx/efct/efct_lio.c:1721:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_NPIV_TPG_ATTRIB(demo_mode_write_protect); ^ drivers/scsi/elx/efct/efct_lio.c:1722:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_NPIV_TPG_ATTRIB(prod_mode_write_protect); ^ drivers/scsi/elx/efct/efct_lio.c:1723:1: warning: %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [invalidPrintfArgType_uint] DEF_EFCT_NPIV_TPG_ATTRIB(demo_mode_login_only); ^ drivers/scsi/elx/efct/efct_lio.c:93:6: warning: The scope of the variable 'ret' can be reduced. [variableScope] int ret; ^ drivers/scsi/elx/efct/efct_lio.c:150:6: warning: The scope of the variable 'ret' can be reduced. [variableScope] int ret; ^ EFCT_XPORT_SHUTDOWN, NULL); ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ efct_set_lio_io_state(io, EFCT_LIO_STATE_SCSI_CMPL_CMD); ^ -- snprintf(buffer, buffer_len, "eui.%016llX", eui_name); ^ -- drivers/scsi/elx/efct/efct_unsol.c:28:16: warning: The scope of the variable 'flags' can be reduced. [variableScope] unsigned long flags = 0; ^ drivers/scsi/elx/efct/efct_unsol.c:210:26: warning: The scope of the variable 'frame' can be reduced. [variableScope] struct efc_hw_sequence *frame; ^ drivers/scsi/elx/efct/efct_unsol.c:533:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc = 0; ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ int rc = 0; ^ -- snprintf(sport->wwnn_str, sizeof(sport->wwnn_str), "%016llX", wwnn); ^ drivers/scsi/elx/libefc/efc_sport.c:422:20: warning: The scope of the variable 'fabric' can be reduced. [variableScope] struct efc_node *fabric; ^ -- drivers/scsi/elx/libefc/efc_device.c:485:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc; ^ drivers/scsi/elx/libefc/efc_device.c:1486:6: warning: The scope of the variable 'rc' can be reduced. [variableScope] int rc = EFC_SCSI_CALL_COMPLETE; ^ drivers/scsi/elx/libefc/efc_device.c:1487:6: warning: The scope of the variable 'rc_2' can be reduced. [variableScope] int rc_2 = EFC_SCSI_CALL_COMPLETE; ^ struct fc_els_spp *sp = prli + sizeof(struct fc_els_prli); ^ + sizeof(struct fc_els_prli); ^ drivers/scsi/elx/libefc/efc_device.c:1397:6: warning: 'cbdata->payload->dma.virt' is of type 'void *'. When using void pointers in calculations, the behaviour is undefined. [arithOperationsOnVoidPointer] + sizeof(struct fc_els_prli); ^ -- if (valid && clear) { ^ drivers/scsi/elx/libefc_sli/sli4.c:1367:6: note: Assuming that condition '!valid' is not redundant if (!valid) { ^ drivers/scsi/elx/libefc_sli/sli4.c:1372:6: note: Condition 'valid' is always true if (valid && clear) { ^ drivers/scsi/elx/libefc_sli/sli4.c:1425:6: warning: Condition 'valid' is always true [knownConditionTrueFalse] if (valid && clear) { ^ drivers/scsi/elx/libefc_sli/sli4.c:1420:6: note: Assuming that condition '!valid' is not redundant if (!valid) { ^ drivers/scsi/elx/libefc_sli/sli4.c:1425:6: note: Condition 'valid' is always true if (valid && clear) { ^ extent->resource_type = cpu_to_le16(rtype); ^ drivers/scsi/elx/libefc_sli/sli4.c:4011:6: note: Assuming that condition 'extent' is not redundant if (extent) ^ drivers/scsi/elx/libefc_sli/sli4.c:4018:2: note: Null pointer dereference extent->resource_type = cpu_to_le16(rtype); ^ drivers/scsi/elx/libefc_sli/sli4.c:2175:19: warning: The scope of the variable 'bptr' can be reduced. [variableScope] struct sli4_bde *bptr; ^ struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe; ^ drivers/scsi/elx/libefc_sli/sli4.c:2995:29: note: Shadowed declaration struct sli4_fc_async_rcqe *rcqe = (void *)cqe; ^ drivers/scsi/elx/libefc_sli/sli4.c:3068:35: note: Shadow variable struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe; ^ u16 rq_element_index = ^ drivers/scsi/elx/libefc_sli/sli4.c:2999:6: note: Shadowed declaration u16 rq_element_index; ^ drivers/scsi/elx/libefc_sli/sli4.c:3069:7: note: Shadow variable u16 rq_element_index = ^ u32 i = 0, size = 0; ^ drivers/scsi/elx/libefc_sli/sli4.c:4470:7: note: Shadowed declaration u32 i; ^ drivers/scsi/elx/libefc_sli/sli4.c:4487:8: note: Shadow variable u32 i = 0, size = 0; ^ buf += offsetof(struct sli4_cmd_sli_config, payload.embed); ^ SLI4_PORT_CTRL_FDD = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:223:29: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_PORT_STATUS_ERR = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:315:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SGE_LAST = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:418:24: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_MCQE_VALID = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:682:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_EQESZ = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:685:23: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_EQ_ARM = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:729:25: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] CREATE_MQEXT_VAL = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:2665:30: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_READ_LNKSTAT_CLOF = (1 << 31), ^ drivers/scsi/elx/libefc_sli/sli4.h:3473:35: warning: Shifting signed 32-bit value by 31 bits is implementation-defined behaviour [shiftTooManyBitsSigned] SLI4_SET_RECONFIG_LINKID_FD = (1 << 31), ^ vim +/rc +829 drivers/scsi/elx/efct/efct_driver.c 3569c2ab8265ff James Smart 2020-04-11 823 3569c2ab8265ff James Smart 2020-04-11 824 static 3569c2ab8265ff James Smart 2020-04-11 825 int __init efct_init(void) 3569c2ab8265ff James Smart 2020-04-11 826 { 3569c2ab8265ff James Smart 2020-04-11 827 int rc = -ENODEV; 3569c2ab8265ff James Smart 2020-04-11 828 3569c2ab8265ff James Smart 2020-04-11 @829 rc = efct_device_init(); 3569c2ab8265ff James Smart 2020-04-11 830 if (rc) { 3569c2ab8265ff James Smart 2020-04-11 831 pr_err("efct_device_init failed rc=%d\n", rc); 3569c2ab8265ff James Smart 2020-04-11 832 return -ENOMEM; 3569c2ab8265ff James Smart 2020-04-11 833 } 3569c2ab8265ff James Smart 2020-04-11 834 3569c2ab8265ff James Smart 2020-04-11 835 rc = pci_register_driver(&efct_pci_driver); 3569c2ab8265ff James Smart 2020-04-11 836 if (rc) 3569c2ab8265ff James Smart 2020-04-11 837 goto l1; 3569c2ab8265ff James Smart 2020-04-11 838 3569c2ab8265ff James Smart 2020-04-11 839 return rc; 3569c2ab8265ff James Smart 2020-04-11 840 3569c2ab8265ff James Smart 2020-04-11 841 l1: 3569c2ab8265ff James Smart 2020-04-11 842 efct_device_shutdown(); 3569c2ab8265ff James Smart 2020-04-11 843 return rc; 3569c2ab8265ff James Smart 2020-04-11 844 } 3569c2ab8265ff James Smart 2020-04-11 845 :::::: The code at line 829 was first introduced by commit :::::: 3569c2ab8265ffc43780ee31f4c4ef80e37cf0f7 elx: efct: Driver initialization routines :::::: TO: James Smart <jsmart2021(a)gmail.com&gt; :::::: CC: 0day robot <lkp(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org