Merge branch 'next' into for-linus

1 files changed, 36 insertions, 7 deletions

diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index 2dc55343f671..d81c3b1989f7 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -37,7 +37,32 @@
 
 #include "../scsi_sas_internal.h"
 
-struct kmem_cache *sas_task_cache;
+static struct kmem_cache *sas_task_cache;
+
+struct sas_task *sas_alloc_task(gfp_t flags)
+{
+        struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
+
+        if (task) {
+                INIT_LIST_HEAD(&task->list);
+                spin_lock_init(&task->task_state_lock);
+                task->task_state_flags = SAS_TASK_STATE_PENDING;
+                init_timer(&task->timer);
+                init_completion(&task->completion);
+        }
+
+        return task;
+}
+EXPORT_SYMBOL_GPL(sas_alloc_task);
+
+void sas_free_task(struct sas_task *task)
+{
+        if (task) {
+                BUG_ON(!list_empty(&task->list));
+                kmem_cache_free(sas_task_cache, task);
+        }
+}
+EXPORT_SYMBOL_GPL(sas_free_task);
 
 /*------------ SAS addr hash -----------*/
 void sas_hash_addr(u8 *hashed, const u8 *sas_addr)
@@ -152,10 +177,15 @@ int sas_unregister_ha(struct sas_ha_struct *sas_ha)
 
 static int sas_get_linkerrors(struct sas_phy *phy)
 {
-        if (scsi_is_sas_phy_local(phy))
-                /* FIXME: we have no local phy stats
-                 * gathering at this time */
-                return -EINVAL;
+        if (scsi_is_sas_phy_local(phy)) {
+                struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+                struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
+                struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
+                struct sas_internal *i =
+                        to_sas_internal(sas_ha->core.shost->transportt);
+
+                return i->dft->lldd_control_phy(asd_phy, PHY_FUNC_GET_EVENTS, NULL);
+        }
 
         return sas_smp_get_phy_events(phy);
 }
@@ -293,8 +323,7 @@ EXPORT_SYMBOL_GPL(sas_domain_release_transport);
 
 static int __init sas_class_init(void)
 {
-        sas_task_cache = kmem_cache_create("sas_task", sizeof(struct sas_task),
-                                           0, SLAB_HWCACHE_ALIGN, NULL);
+        sas_task_cache = KMEM_CACHE(sas_task, SLAB_HWCACHE_ALIGN);
         if (!sas_task_cache)
                 return -ENOMEM;