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path: root/drivers/scsi/lpfc/lpfc_sli.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 2c7057fa2adb..cea89c6ce1d6 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -187,7 +187,6 @@ lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
{
struct lpfc_mqe *temp_mqe;
struct lpfc_register doorbell;
- uint32_t host_index;
/* sanity check on queue memory */
if (unlikely(!q))
@@ -202,7 +201,6 @@ lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
q->phba->mbox = (MAILBOX_t *)temp_mqe;
/* Update the host index before invoking device */
- host_index = q->host_index;
q->host_index = ((q->host_index + 1) % q->entry_count);
/* Ring Doorbell */
@@ -2435,11 +2433,9 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
IOCB_t * irsp;
WORD5 * w5p;
uint32_t Rctl, Type;
- uint32_t match;
struct lpfc_iocbq *iocbq;
struct lpfc_dmabuf *dmzbuf;
- match = 0;
irsp = &(saveq->iocb);
if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
@@ -2865,7 +2861,7 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
void lpfc_poll_eratt(unsigned long ptr)
{
struct lpfc_hba *phba;
- uint32_t eratt = 0, rem;
+ uint32_t eratt = 0;
uint64_t sli_intr, cnt;
phba = (struct lpfc_hba *)ptr;
@@ -2880,7 +2876,7 @@ void lpfc_poll_eratt(unsigned long ptr)
cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
/* 64-bit integer division not supporte on 32-bit x86 - use do_div */
- rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
+ do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
phba->sli.slistat.sli_ips = cnt;
phba->sli.slistat.sli_prev_intr = sli_intr;
@@ -5953,9 +5949,6 @@ lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
curr_blks++;
}
- /* Calculate the total requested length of the dma memory. */
- req_len = curr_blks * sizeof(uint16_t);
-
/*
* Calculate the size of an embedded mailbox. The uint32_t
* accounts for extents-specific word.
@@ -6766,13 +6759,16 @@ void
lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
- MAILBOX_t *mb = &pmbox->u.mb;
+ MAILBOX_t *mb = NULL;
+
struct lpfc_sli *psli = &phba->sli;
/* If the mailbox completed, process the completion and return */
if (lpfc_sli4_process_missed_mbox_completions(phba))
return;
+ if (pmbox != NULL)
+ mb = &pmbox->u.mb;
/* Check the pmbox pointer first. There is a race condition
* between the mbox timeout handler getting executed in the
* worklist and the mailbox actually completing. When this
@@ -8121,7 +8117,6 @@ lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
cpup += cpu;
return cpup->channel_id;
}
- chann = cpu;
}
chann = atomic_add_return(1, &phba->fcp_qidx);
chann = (chann % phba->cfg_fcp_io_channel);
@@ -12604,6 +12599,9 @@ lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
* Process all the event on FCP fast-path EQ
*/
while ((eqe = lpfc_sli4_eq_get(fpeq))) {
+ if (eqe == NULL)
+ break;
+
lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
if (!(++ecount % fpeq->entry_repost))
lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
@@ -14244,7 +14242,6 @@ lpfc_sli4_post_sgl(struct lpfc_hba *phba,
"2511 POST_SGL mailbox failed with "
"status x%x add_status x%x, mbx status x%x\n",
shdr_status, shdr_add_status, rc);
- rc = -ENXIO;
}
return 0;
}