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[SCSI] pm8001: missing break statements
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Code Inspection: found two missing break directives. First one will
result in not retrying an a task that report
IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY, the second will result in cosmetic
debug printk conflicting statement stutter. Because checkpatch.pl came
up with a warning regarding unnecessary space before a newline on one of
the fragments associated with the diff context, I took the liberty of
fixing all the cases of this issue in the pair of files touched by this
defect. These cosmetic changes hide the break changes :-(

To help focus, break changes are in pm8001_hwi.c fragment line 1649 for
the IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY case statement and pm8001_sas.c
line 1000 deals with the conflicting debug print stutter.

Signed-off-by: Mark Salyzyn <mark_salyzyn@us.xyratex.com>
Acked-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Mark Salyzyn authored and James Bottomley committed Oct 2, 2011
1 parent b90b378 commit 6fbc769
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Showing 2 changed files with 41 additions and 39 deletions.
73 changes: 37 additions & 36 deletions drivers/scsi/pm8001/pm8001_hwi.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -567,11 +567,11 @@ static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
value = pm8001_cr32(pm8001_ha, 0, 0x44);
offset = value & 0x03FFFFFF;
PM8001_INIT_DBG(pm8001_ha,
pm8001_printk("Scratchpad 0 Offset: %x \n", offset));
pm8001_printk("Scratchpad 0 Offset: %x\n", offset));
pcilogic = (value & 0xFC000000) >> 26;
pcibar = get_pci_bar_index(pcilogic);
PM8001_INIT_DBG(pm8001_ha,
pm8001_printk("Scratchpad 0 PCI BAR: %d \n", pcibar));
pm8001_printk("Scratchpad 0 PCI BAR: %d\n", pcibar));
pm8001_ha->main_cfg_tbl_addr = base_addr =
pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
pm8001_ha->general_stat_tbl_addr =
Expand Down Expand Up @@ -1245,7 +1245,7 @@ static int mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,

if (mpi_msg_free_get(circularQ, 64, &pMessage) < 0) {
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("No free mpi buffer \n"));
pm8001_printk("No free mpi buffer\n"));
return -1;
}
BUG_ON(!payload);
Expand All @@ -1262,7 +1262,7 @@ static int mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
circularQ->pi_offset, circularQ->producer_idx);
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("after PI= %d CI= %d \n", circularQ->producer_idx,
pm8001_printk("after PI= %d CI= %d\n", circularQ->producer_idx,
circularQ->consumer_index));
return 0;
}
Expand Down Expand Up @@ -1474,7 +1474,7 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
switch (status) {
case IO_SUCCESS:
PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
",param = %d \n", param));
",param = %d\n", param));
if (param == 0) {
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAM_STAT_GOOD;
Expand All @@ -1490,14 +1490,14 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
break;
case IO_ABORTED:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("IO_ABORTED IOMB Tag \n"));
pm8001_printk("IO_ABORTED IOMB Tag\n"));
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_ABORTED_TASK;
break;
case IO_UNDERFLOW:
/* SSP Completion with error */
PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_UNDERFLOW"
",param = %d \n", param));
",param = %d\n", param));
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_DATA_UNDERRUN;
ts->residual = param;
Expand Down Expand Up @@ -1649,6 +1649,7 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_OPEN_REJECT;
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
break;
default:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("Unknown status 0x%x\n", status));
Expand Down Expand Up @@ -1937,14 +1938,14 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
ts->buf_valid_size = sizeof(*resp);
} else
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("response to large \n"));
pm8001_printk("response to large\n"));
}
if (pm8001_dev)
pm8001_dev->running_req--;
break;
case IO_ABORTED:
PM8001_IO_DBG(pm8001_ha,
pm8001_printk("IO_ABORTED IOMB Tag \n"));
pm8001_printk("IO_ABORTED IOMB Tag\n"));
ts->resp = SAS_TASK_COMPLETE;
ts->stat = SAS_ABORTED_TASK;
if (pm8001_dev)
Expand Down Expand Up @@ -2728,11 +2729,11 @@ static int mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
if (status != 0) {
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("%x phy execute %x phy op failed! \n",
pm8001_printk("%x phy execute %x phy op failed!\n",
phy_id, phy_op));
} else
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("%x phy execute %x phy op success! \n",
pm8001_printk("%x phy execute %x phy op success!\n",
phy_id, phy_op));
return 0;
}
Expand Down Expand Up @@ -3018,7 +3019,7 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
break;
case PORT_INVALID:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk(" PortInvalid portID %d \n", port_id));
pm8001_printk(" PortInvalid portID %d\n", port_id));
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk(" Last phy Down and port invalid\n"));
port->port_attached = 0;
Expand All @@ -3027,7 +3028,7 @@ hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
break;
case PORT_IN_RESET:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk(" Port In Reset portID %d \n", port_id));
pm8001_printk(" Port In Reset portID %d\n", port_id));
break;
case PORT_NOT_ESTABLISHED:
PM8001_MSG_DBG(pm8001_ha,
Expand Down Expand Up @@ -3220,7 +3221,7 @@ mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
pm8001_printk(" status = 0x%x\n", status));
for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("inb_IOMB_payload[0x%x] 0x%x, \n", i,
pm8001_printk("inb_IOMB_payload[0x%x] 0x%x,\n", i,
pPayload->inb_IOMB_payload[i]));
return 0;
}
Expand Down Expand Up @@ -3312,12 +3313,12 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
break;
case HW_EVENT_SAS_PHY_UP:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PHY_START_STATUS \n"));
pm8001_printk("HW_EVENT_PHY_START_STATUS\n"));
hw_event_sas_phy_up(pm8001_ha, piomb);
break;
case HW_EVENT_SATA_PHY_UP:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_SATA_PHY_UP \n"));
pm8001_printk("HW_EVENT_SATA_PHY_UP\n"));
hw_event_sata_phy_up(pm8001_ha, piomb);
break;
case HW_EVENT_PHY_STOP_STATUS:
Expand All @@ -3329,12 +3330,12 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
break;
case HW_EVENT_SATA_SPINUP_HOLD:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_SATA_SPINUP_HOLD \n"));
pm8001_printk("HW_EVENT_SATA_SPINUP_HOLD\n"));
sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
break;
case HW_EVENT_PHY_DOWN:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PHY_DOWN \n"));
pm8001_printk("HW_EVENT_PHY_DOWN\n"));
sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
phy->phy_attached = 0;
phy->phy_state = 0;
Expand Down Expand Up @@ -3446,7 +3447,7 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
break;
case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_LINK_ERR_PHY_RESET_FAILED \n"));
pm8001_printk("HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n"));
pm8001_hw_event_ack_req(pm8001_ha, 0,
HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
port_id, phy_id, 0, 0);
Expand All @@ -3456,25 +3457,25 @@ static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
break;
case HW_EVENT_PORT_RESET_TIMER_TMO:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PORT_RESET_TIMER_TMO \n"));
pm8001_printk("HW_EVENT_PORT_RESET_TIMER_TMO\n"));
sas_phy_disconnected(sas_phy);
phy->phy_attached = 0;
sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PORT_RECOVERY_TIMER_TMO \n"));
pm8001_printk("HW_EVENT_PORT_RECOVERY_TIMER_TMO\n"));
sas_phy_disconnected(sas_phy);
phy->phy_attached = 0;
sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
break;
case HW_EVENT_PORT_RECOVER:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PORT_RECOVER \n"));
pm8001_printk("HW_EVENT_PORT_RECOVER\n"));
break;
case HW_EVENT_PORT_RESET_COMPLETE:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("HW_EVENT_PORT_RESET_COMPLETE \n"));
pm8001_printk("HW_EVENT_PORT_RESET_COMPLETE\n"));
break;
case EVENT_BROADCAST_ASYNCH_EVENT:
PM8001_MSG_DBG(pm8001_ha,
Expand Down Expand Up @@ -3502,21 +3503,21 @@ static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)

switch (opc) {
case OPC_OUB_ECHO:
PM8001_MSG_DBG(pm8001_ha, pm8001_printk("OPC_OUB_ECHO \n"));
PM8001_MSG_DBG(pm8001_ha, pm8001_printk("OPC_OUB_ECHO\n"));
break;
case OPC_OUB_HW_EVENT:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_HW_EVENT \n"));
pm8001_printk("OPC_OUB_HW_EVENT\n"));
mpi_hw_event(pm8001_ha, piomb);
break;
case OPC_OUB_SSP_COMP:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_SSP_COMP \n"));
pm8001_printk("OPC_OUB_SSP_COMP\n"));
mpi_ssp_completion(pm8001_ha, piomb);
break;
case OPC_OUB_SMP_COMP:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_SMP_COMP \n"));
pm8001_printk("OPC_OUB_SMP_COMP\n"));
mpi_smp_completion(pm8001_ha, piomb);
break;
case OPC_OUB_LOCAL_PHY_CNTRL:
Expand All @@ -3526,26 +3527,26 @@ static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
break;
case OPC_OUB_DEV_REGIST:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_DEV_REGIST \n"));
pm8001_printk("OPC_OUB_DEV_REGIST\n"));
mpi_reg_resp(pm8001_ha, piomb);
break;
case OPC_OUB_DEREG_DEV:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("unresgister the deviece \n"));
pm8001_printk("unresgister the deviece\n"));
mpi_dereg_resp(pm8001_ha, piomb);
break;
case OPC_OUB_GET_DEV_HANDLE:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_GET_DEV_HANDLE \n"));
pm8001_printk("OPC_OUB_GET_DEV_HANDLE\n"));
break;
case OPC_OUB_SATA_COMP:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_SATA_COMP \n"));
pm8001_printk("OPC_OUB_SATA_COMP\n"));
mpi_sata_completion(pm8001_ha, piomb);
break;
case OPC_OUB_SATA_EVENT:
PM8001_MSG_DBG(pm8001_ha,
pm8001_printk("OPC_OUB_SATA_EVENT \n"));
pm8001_printk("OPC_OUB_SATA_EVENT\n"));
mpi_sata_event(pm8001_ha, piomb);
break;
case OPC_OUB_SSP_EVENT:
Expand Down Expand Up @@ -3858,19 +3859,19 @@ static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
circularQ = &pm8001_ha->inbnd_q_tbl[0];
if (task->data_dir == PCI_DMA_NONE) {
ATAP = 0x04; /* no data*/
PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data \n"));
PM8001_IO_DBG(pm8001_ha, pm8001_printk("no data\n"));
} else if (likely(!task->ata_task.device_control_reg_update)) {
if (task->ata_task.dma_xfer) {
ATAP = 0x06; /* DMA */
PM8001_IO_DBG(pm8001_ha, pm8001_printk("DMA \n"));
PM8001_IO_DBG(pm8001_ha, pm8001_printk("DMA\n"));
} else {
ATAP = 0x05; /* PIO*/
PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO \n"));
PM8001_IO_DBG(pm8001_ha, pm8001_printk("PIO\n"));
}
if (task->ata_task.use_ncq &&
dev->sata_dev.command_set != ATAPI_COMMAND_SET) {
ATAP = 0x07; /* FPDMA */
PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA \n"));
PM8001_IO_DBG(pm8001_ha, pm8001_printk("FPDMA\n"));
}
}
if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag))
Expand Down
7 changes: 4 additions & 3 deletions drivers/scsi/pm8001/pm8001_sas.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -609,7 +609,7 @@ static int pm8001_dev_found_notify(struct domain_device *dev)
flag = 1; /* directly sata*/
}
} /*register this device to HBA*/
PM8001_DISC_DBG(pm8001_ha, pm8001_printk("Found device \n"));
PM8001_DISC_DBG(pm8001_ha, pm8001_printk("Found device\n"));
PM8001_CHIP_DISP->reg_dev_req(pm8001_ha, pm8001_device, flag);
spin_unlock_irqrestore(&pm8001_ha->lock, flags);
wait_for_completion(&completion);
Expand Down Expand Up @@ -958,13 +958,14 @@ int pm8001_query_task(struct sas_task *task)
/* The task is still in Lun, release it then */
case TMF_RESP_FUNC_SUCC:
PM8001_EH_DBG(pm8001_ha,
pm8001_printk("The task is still in Lun \n"));
pm8001_printk("The task is still in Lun\n"));
break;
/* The task is not in Lun or failed, reset the phy */
case TMF_RESP_FUNC_FAILED:
case TMF_RESP_FUNC_COMPLETE:
PM8001_EH_DBG(pm8001_ha,
pm8001_printk("The task is not in Lun or failed,"
" reset the phy \n"));
" reset the phy\n"));
break;
}
}
Expand Down

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