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authorBart Van Assche <bvanassche@acm.org>2019-04-17 14:44:34 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2019-04-29 17:24:51 -0400
commit982cc4be05d6d0d8b15b1340416737ad60bddcae (patch)
tree0ad79bef5e1fa62702341387cfa8cfb247078716 /drivers
parent1956eee58872e622cfe03f060a5d8a20d24afe47 (diff)
downloadlinux-982cc4be05d6d0d8b15b1340416737ad60bddcae.tar.gz
scsi: qla2xxx: Use an on-stack completion in qla24xx_control_vp()
This patch reduces the size of struct srb. Cc: Himanshu Madhani <hmadhani@marvell.com> Cc: Giridhar Malavali <gmalavali@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/qla2xxx/qla_def.h2
-rw-r--r--drivers/scsi/qla2xxx/qla_iocb.c1
-rw-r--r--drivers/scsi/qla2xxx/qla_mid.c9
3 files changed, 8 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index c9f0169b21ea..6dd2d41713c9 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -545,7 +545,7 @@ typedef struct srb {
u32 gen2; /* scratch */
int rc;
int retry_count;
- struct completion comp;
+ struct completion *comp;
wait_queue_head_t *cwaitq;
union {
struct srb_iocb iocb_cmd;
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 7ab157c079ca..60f6685cb342 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2570,7 +2570,6 @@ void qla2x00_init_timer(srb_t *sp, unsigned long tmo)
timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
sp->free = qla2x00_sp_free;
- init_completion(&sp->comp);
if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
add_timer(&sp->u.iocb_cmd.timer);
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 099d8e9851cb..b2977e49356b 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -905,7 +905,8 @@ static void qla_ctrlvp_sp_done(void *s, int res)
{
struct srb *sp = s;
- complete(&sp->comp);
+ if (sp->comp)
+ complete(sp->comp);
/* don't free sp here. Let the caller do the free */
}
@@ -922,6 +923,7 @@ int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
struct qla_hw_data *ha = vha->hw;
int vp_index = vha->vp_idx;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+ DECLARE_COMPLETION_ONSTACK(comp);
srb_t *sp;
ql_dbg(ql_dbg_vport, vha, 0x10c1,
@@ -936,6 +938,7 @@ int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
sp->type = SRB_CTRL_VP;
sp->name = "ctrl_vp";
+ sp->comp = &comp;
sp->done = qla_ctrlvp_sp_done;
sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
@@ -953,7 +956,9 @@ int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
sp->name, sp->handle);
- wait_for_completion(&sp->comp);
+ wait_for_completion(&comp);
+ sp->comp = NULL;
+
rval = sp->rc;
switch (rval) {
case QLA_FUNCTION_TIMEOUT: