[SCSI] qla4xxx: cleanup function qla4xxx_process_ddb_changed

We don't need to check ddb old state we can take action
based on ddb new state.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 8b5453a60444caa14dbb5b98caa5cd273bd2eb06..bbb2e903d38a8ee54b7a6715a20795cad77db8a8 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -1409,7 +1409,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                uint32_t state, uint32_t conn_err)
 {
        struct ddb_entry * ddb_entry;
-       uint32_t old_fw_ddb_device_state;
 
        /* check for out of range index */
        if (fw_ddb_index >= MAX_DDB_ENTRIES)
@@ -1425,22 +1424,14 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
        }
 
        /* Device already exists in our database. */
-       old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
        DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
                      "index [%d]\n", ha->host_no, __func__,
                      ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
-       if (old_fw_ddb_device_state == state &&
-           state == DDB_DS_SESSION_ACTIVE) {
-               if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
-                       atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
-                       iscsi_unblock_session(ddb_entry->sess);
-               }
-               return QLA_SUCCESS;
-       }
 
        ddb_entry->fw_ddb_device_state = state;
        /* Device is back online. */
-       if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+       if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) &&
+          (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) {
                atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
                atomic_set(&ddb_entry->relogin_retry_count, 0);
                atomic_set(&ddb_entry->relogin_timer, 0);
@@ -1452,7 +1443,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
                 * Change the lun state to READY in case the lun TIMEOUT before
                 * the device came back.
                 */
-       } else {
+       } else if (ddb_entry->fw_ddb_device_state != DDB_DS_SESSION_ACTIVE) {
                /* Device went away, mark device missing */
                if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) {
                        DEBUG2(ql4_printk(KERN_INFO, ha, "%s mark missing "