scsi: libsas: Switch back to original event notifiers API

libsas event notifiers required an extension where gfp_t flags must be
explicitly passed. For bisectability, a temporary _gfp() variant of such
functions were added. All call sites then got converted use the _gfp()
variants and explicitly pass GFP context. Having no callers left, the
original libsas notifiers were then modified to accept gfp_t flags by
default.

Switch back to the original event notifiers API, while still passing GFP
context.  The _gfp() notifier variants will be removed afterwards.

Link: https://lore.kernel.org/r/20210118100955.1761652-17-a.darwish@linutronix.de
Cc: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/libsas/sas_event.c

@@ -109,7 +109,7 @@ void sas_enable_revalidation(struct sas_ha_struct *ha)
 
 		sas_phy = container_of(port->phy_list.next, struct asd_sas_phy,
 				port_phy_el);
-		sas_notify_port_event_gfp(sas_phy,
+		sas_notify_port_event(sas_phy,
 				PORTE_BROADCAST_RCVD, GFP_KERNEL);
 	}
 	mutex_unlock(&ha->disco_mutex);
@@ -141,7 +141,7 @@ int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
 
 	BUG_ON(event >= PORT_NUM_EVENTS);
 
-	ev = sas_alloc_event_gfp(phy, gfp_flags);
+	ev = sas_alloc_event(phy, gfp_flags);
 	if (!ev)
 		return -ENOMEM;
 
@@ -171,7 +171,7 @@ int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
 
 	BUG_ON(event >= PHY_NUM_EVENTS);
 
-	ev = sas_alloc_event_gfp(phy, gfp_flags);
+	ev = sas_alloc_event(phy, gfp_flags);
 	if (!ev)
 		return -ENOMEM;
 

drivers/scsi/libsas/sas_init.c

@@ -404,8 +404,8 @@ void sas_resume_ha(struct sas_ha_struct *ha)
 
 		if (phy->suspended) {
 			dev_warn(&phy->phy->dev, "resume timeout\n");
-			sas_notify_phy_event_gfp(phy, PHYE_RESUME_TIMEOUT,
-						 GFP_KERNEL);
+			sas_notify_phy_event(phy, PHYE_RESUME_TIMEOUT,
+					     GFP_KERNEL);
 		}
 	}
 
@@ -604,8 +604,8 @@ struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy,
 			if (cmpxchg(&phy->in_shutdown, 0, 1) == 0) {
 				pr_notice("The phy%d bursting events, shut it down.\n",
 					  phy->id);
-				sas_notify_phy_event_gfp(phy, PHYE_SHUTDOWN,
-							 gfp_flags);
+				sas_notify_phy_event(phy, PHYE_SHUTDOWN,
+						     gfp_flags);
 			}
 		} else {
 			/* Do not support PHY control, stop allocating events */