scsi_dh_alua: remove 'rel_port' from alua_dh_data structure

The 'relative port' field is not used, and might get stale when
the port group changes. So remove the field altogether.

Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index d02894d..7a351cf 100644 (file)
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -87,7 +87,6 @@ struct alua_port_group {
 struct alua_dh_data {
        struct alua_port_group  *pg;
        int                     group_id;
-       int                     rel_port;
        struct scsi_device      *sdev;
        activate_complete       callback_fn;
        void                    *callback_data;
@@ -325,12 +324,10 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h,
                        return SCSI_DH_NOMEM;
                return SCSI_DH_DEV_UNSUPP;
        }
-       h->rel_port = rel_port;
-
        sdev_printk(KERN_INFO, sdev,
                    "%s: device %s port group %x rel port %x\n",
                    ALUA_DH_NAME, h->pg->device_id_str,
-                   h->group_id, h->rel_port);
+                   h->group_id, rel_port);
 
        return alua_rtpg(sdev, h->pg);
 }
@@ -762,7 +759,6 @@ static int alua_bus_attach(struct scsi_device *sdev)
        if (!h)
                return -ENOMEM;
        h->pg = NULL;
-       h->rel_port = -1;
        h->sdev = sdev;
 
        err = alua_initialize(sdev, h);