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path: root/drivers/scsi/libsas/sas_event.c
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Diffstat (limited to 'drivers/scsi/libsas/sas_event.c')
-rw-r--r--drivers/scsi/libsas/sas_event.c50
1 files changed, 19 insertions, 31 deletions
diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c
index 3613b9b315bc..f3a17191a4fe 100644
--- a/drivers/scsi/libsas/sas_event.c
+++ b/drivers/scsi/libsas/sas_event.c
@@ -10,29 +10,26 @@
#include <scsi/scsi_host.h>
#include "sas_internal.h"
-int sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw)
+bool sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw)
{
- /* it's added to the defer_q when draining so return succeed */
- int rc = 1;
-
if (!test_bit(SAS_HA_REGISTERED, &ha->state))
- return 0;
+ return false;
if (test_bit(SAS_HA_DRAINING, &ha->state)) {
/* add it to the defer list, if not already pending */
if (list_empty(&sw->drain_node))
list_add_tail(&sw->drain_node, &ha->defer_q);
- } else
- rc = queue_work(ha->event_q, &sw->work);
+ return true;
+ }
- return rc;
+ return queue_work(ha->event_q, &sw->work);
}
-static int sas_queue_event(int event, struct sas_work *work,
+static bool sas_queue_event(int event, struct sas_work *work,
struct sas_ha_struct *ha)
{
unsigned long flags;
- int rc;
+ bool rc;
spin_lock_irqsave(&ha->lock, flags);
rc = sas_queue_work(ha, work);
@@ -44,13 +41,12 @@ static int sas_queue_event(int event, struct sas_work *work,
void sas_queue_deferred_work(struct sas_ha_struct *ha)
{
struct sas_work *sw, *_sw;
- int ret;
spin_lock_irq(&ha->lock);
list_for_each_entry_safe(sw, _sw, &ha->defer_q, drain_node) {
list_del_init(&sw->drain_node);
- ret = sas_queue_work(ha, sw);
- if (ret != 1) {
+
+ if (!sas_queue_work(ha, sw)) {
pm_runtime_put(ha->dev);
sas_free_event(to_asd_sas_event(&sw->work));
}
@@ -165,18 +161,17 @@ static bool sas_defer_event(struct asd_sas_phy *phy, struct asd_sas_event *ev)
return deferred;
}
-int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
- gfp_t gfp_flags)
+void sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
+ gfp_t gfp_flags)
{
struct sas_ha_struct *ha = phy->ha;
struct asd_sas_event *ev;
- int ret;
BUG_ON(event >= PORT_NUM_EVENTS);
ev = sas_alloc_event(phy, gfp_flags);
if (!ev)
- return -ENOMEM;
+ return;
/* Call pm_runtime_put() with pairs in sas_port_event_worker() */
pm_runtime_get_noresume(ha->dev);
@@ -184,30 +179,26 @@ int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
INIT_SAS_EVENT(ev, sas_port_event_worker, phy, event);
if (sas_defer_event(phy, ev))
- return 0;
+ return;
- ret = sas_queue_event(event, &ev->work, ha);
- if (ret != 1) {
+ if (!sas_queue_event(event, &ev->work, ha)) {
pm_runtime_put(ha->dev);
sas_free_event(ev);
}
-
- return ret;
}
EXPORT_SYMBOL_GPL(sas_notify_port_event);
-int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
- gfp_t gfp_flags)
+void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
+ gfp_t gfp_flags)
{
struct sas_ha_struct *ha = phy->ha;
struct asd_sas_event *ev;
- int ret;
BUG_ON(event >= PHY_NUM_EVENTS);
ev = sas_alloc_event(phy, gfp_flags);
if (!ev)
- return -ENOMEM;
+ return;
/* Call pm_runtime_put() with pairs in sas_phy_event_worker() */
pm_runtime_get_noresume(ha->dev);
@@ -215,14 +206,11 @@ int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
INIT_SAS_EVENT(ev, sas_phy_event_worker, phy, event);
if (sas_defer_event(phy, ev))
- return 0;
+ return;
- ret = sas_queue_event(event, &ev->work, ha);
- if (ret != 1) {
+ if (!sas_queue_event(event, &ev->work, ha)) {
pm_runtime_put(ha->dev);
sas_free_event(ev);
}
-
- return ret;
}
EXPORT_SYMBOL_GPL(sas_notify_phy_event);