Fix lockdep error in __lpfc_sli_ringtx_put():
The hbalock is valid for sli3, but not for sli4.
Change lockdep to look at ring lock if sli4.
Also update comment in __lpfc_sli_issue_iocb_s4()
to reflect proper lock. note: lockdep check is
already correct.
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_sli.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 379c37451645..3a6520187ee5 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -9004,7 +9004,8 @@ lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
* @pring: Pointer to driver SLI ring object.
* @piocb: Pointer to address of newly added command iocb.
*
- * This function is called with hbalock held to add a command
+ * This function is called with hbalock held for SLI3 ports or
+ * the ring lock held for SLI4 ports to add a command
* iocb to the txq when SLI layer cannot submit the command iocb
* to the ring.
**/
@@ -9012,7 +9013,10 @@ void
__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb)
{
- lockdep_assert_held(&phba->hbalock);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lockdep_assert_held(&pring->ring_lock);
+ else
+ lockdep_assert_held(&phba->hbalock);
/* Insert the caller's iocb in the txq tail for later processing. */
list_add_tail(&piocb->list, &pring->txq);
}
@@ -9903,7 +9907,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
* __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
* an iocb command to an HBA with SLI-4 interface spec.
*
- * This function is called with hbalock held. The function will return success
+ * This function is called with ringlock held. The function will return success
* after it successfully submit the iocb to firmware or after adding to the
* txq.
**/
--
2.13.7
