mcc_cq_lock spin_lock is used only in beiscsi_process_mcc which is called
only when all interrupts are disabled from mgmt_epfw_cleanup during
unloading of driver. There is no other context where there can be
contention for the processing of CQ.
Signed-off-by: Jitendra Bhivare <jitendra.bhivare@xxxxxxxxxxxx>
Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
---
drivers/scsi/be2iscsi/be.h | 1 -
drivers/scsi/be2iscsi/be_cmds.c | 2 --
drivers/scsi/be2iscsi/be_main.c | 1 -
3 files changed, 4 deletions(-)
diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
index 7d425af..1524fe4 100644
--- a/drivers/scsi/be2iscsi/be.h
+++ b/drivers/scsi/be2iscsi/be.h
@@ -132,7 +132,6 @@ struct be_ctrl_info {
/* MCC Rings */
struct be_mcc_obj mcc_obj;
spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
- spinlock_t mcc_cq_lock;
wait_queue_head_t mcc_wait[MAX_MCC_CMD + 1];
unsigned int mcc_tag[MAX_MCC_CMD];
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index 34c33d4..e8e9d22 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -532,7 +532,6 @@ int beiscsi_process_mcc(struct beiscsi_hba *phba)
int num = 0, status = 0;
struct be_ctrl_info *ctrl = &phba->ctrl;
- spin_lock_bh(&phba->ctrl.mcc_cq_lock);
while ((compl = be_mcc_compl_get(phba))) {
if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
beiscsi_process_async_event(phba, compl);
@@ -547,7 +546,6 @@ int beiscsi_process_mcc(struct beiscsi_hba *phba)
if (num)
hwi_ring_cq_db(phba, phba->ctrl.mcc_obj.cq.id, num, 1);
- spin_unlock_bh(&phba->ctrl.mcc_cq_lock);
return status;
}
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 70179e1..314fd2c 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -730,7 +730,6 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
mutex_init(&ctrl->mbox_lock);
spin_lock_init(&phba->ctrl.mcc_lock);
- spin_lock_init(&phba->ctrl.mcc_cq_lock);
return status;
}
--
2.5.0
--
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