scsi: libsas: kill useless ha_event and do some cleanup

The ha_event now has only one event HAE_RESET, and this event does
nothing. Kill it and do some cleanup.

This is a preparation for enhance libsas hotplug feature in the next
patches.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
CC: Johannes Thumshirn <jthumshirn@suse.de>
CC: Ewan Milne <emilne@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Tomas Henzl <thenzl@redhat.com>
CC: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 6c0dc6155ee7..52b3e863bea8 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -60,11 +60,6 @@ enum sas_phy_type {
  * so when updating/adding events here, please also
  * update the other file too.
  */
-enum ha_event {
-        HAE_RESET             = 0U,
-        HA_NUM_EVENTS         = 1,
-};
-
 enum port_event {
         PORTE_BYTES_DMAED     = 0U,
         PORTE_BROADCAST_RCVD  = 1,
@@ -362,18 +357,6 @@ struct scsi_core {
 
 };
 
-struct sas_ha_event {
-        struct sas_work work;
-        struct sas_ha_struct *ha;
-};
-
-static inline struct sas_ha_event *to_sas_ha_event(struct work_struct *work)
-{
-        struct sas_ha_event *ev = container_of(work, typeof(*ev), work.work);
-
-        return ev;
-}
-
 enum sas_ha_state {
         SAS_HA_REGISTERED,
         SAS_HA_DRAINING,
@@ -383,9 +366,6 @@ enum sas_ha_state {
 
 struct sas_ha_struct {
 /* private: */
-        struct sas_ha_event ha_events[HA_NUM_EVENTS];
-        unsigned long    pending;
-
         struct list_head  defer_q; /* work queued while draining */
         struct mutex      drain_mutex;
         unsigned long     state;
@@ -415,7 +395,6 @@ struct sas_ha_struct {
                                 * their siblings when forming wide ports */
 
         /* LLDD calls these to notify the class of an event. */
-        int (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
         int (*notify_port_event)(struct asd_sas_phy *, enum port_event);
         int (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);