Re: [PATCH v2] qla2xxx: Split the __qla2x00_abort_all_cmds() function

2018-12-07 Thread Martin K. Petersen


Bart,

> Nesting in __qla2x00_abort_all_cmds() is way too deep. Reduce the
> nesting level by introducing a helper function. This patch does not
> change any functionality.

Applied to 4.21/scsi-queue. Thank you.

-- 
Martin K. Petersen  Oracle Linux Engineering


[PATCH v2] qla2xxx: Split the __qla2x00_abort_all_cmds() function

2018-11-29 Thread Bart Van Assche
Nesting in __qla2x00_abort_all_cmds() is way too deep. Reduce the nesting
level by introducing a helper function. This patch does not change any
functionality.

Reviewed-by: Laurence Oberman 
Acked-by: Himanshu Madhani 
Signed-off-by: Bart Van Assche 
---

Changes in v2 compared to v1: rebased on top of Martin's 4.21/scsi-queue
  branch.

 drivers/scsi/qla2xxx/qla_os.c | 74 +--
 1 file changed, 36 insertions(+), 38 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 518f15141170..4a75e0572121 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1746,6 +1746,41 @@ qla2x00_loop_reset(scsi_qla_host_t *vha)
return QLA_SUCCESS;
 }
 
+static void qla2x00_abort_srb(struct qla_qpair *qp, srb_t *sp, const int res,
+ unsigned long *flags)
+   __releases(qp->qp_lock_ptr)
+   __acquires(qp->qp_lock_ptr)
+{
+   scsi_qla_host_t *vha = qp->vha;
+   struct qla_hw_data *ha = vha->hw;
+
+   if (sp->type == SRB_NVME_CMD || sp->type == SRB_NVME_LS) {
+   if (!sp_get(sp)) {
+   /* got sp */
+   spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
+   qla_nvme_abort(ha, sp, res);
+   spin_lock_irqsave(qp->qp_lock_ptr, *flags);
+   }
+   } else if (GET_CMD_SP(sp) && !ha->flags.eeh_busy &&
+  !test_bit(ABORT_ISP_ACTIVE, >dpc_flags) &&
+  !qla2x00_isp_reg_stat(ha) && sp->type == SRB_SCSI_CMD) {
+   /*
+* Don't abort commands in adapter during EEH recovery as it's
+* not accessible/responding.
+*
+* Get a reference to the sp and drop the lock. The reference
+* ensures this sp->done() call and not the call in
+* qla2xxx_eh_abort() ends the SCSI cmd (with result 'res').
+*/
+   if (!sp_get(sp)) {
+   spin_unlock_irqrestore(qp->qp_lock_ptr, *flags);
+   qla2xxx_eh_abort(GET_CMD_SP(sp));
+   spin_lock_irqsave(qp->qp_lock_ptr, *flags);
+   }
+   }
+   sp->done(sp, res);
+}
+
 static void
 __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
 {
@@ -1768,44 +1803,7 @@ __qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
req->outstanding_cmds[cnt] = NULL;
switch (sp->cmd_type) {
case TYPE_SRB:
-   if (sp->type == SRB_NVME_CMD ||
-   sp->type == SRB_NVME_LS) {
-   if (!sp_get(sp)) {
-   /* got sp */
-   spin_unlock_irqrestore
-   (qp->qp_lock_ptr,
-flags);
-   qla_nvme_abort(ha, sp, res);
-   spin_lock_irqsave
-   (qp->qp_lock_ptr, 
flags);
-   }
-   } else if (GET_CMD_SP(sp) &&
-   !ha->flags.eeh_busy &&
-   (!test_bit(ABORT_ISP_ACTIVE,
-   >dpc_flags)) &&
-   !qla2x00_isp_reg_stat(ha) &&
-   (sp->type == SRB_SCSI_CMD)) {
-   /*
-* Don't abort commands in adapter
-* during EEH recovery as it's not
-* accessible/responding.
-*
-* Get a reference to the sp and drop
-* the lock. The reference ensures this
-* sp->done() call and not the call in
-* qla2xxx_eh_abort() ends the SCSI cmd
-* (with result 'res').
-*/
-   if (!sp_get(sp)) {
-   spin_unlock_irqrestore
-   (qp->qp_lock_ptr, 
flags);
-   qla2xxx_eh_abort(
-   GET_CMD_SP(sp));
-   spin_lock_irqsave
-   (qp->qp_lock_ptr, 
flags);
-   }
-   }
-