scsi: target: split out helper for cxn timeout error stashing

Replace existing nested code blocks with helper function calls.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/iscsi/iscsi_target_erl0.c

@@ -770,21 +770,8 @@ void iscsit_handle_time2retain_timeout(struct timer_list *t)
 
 	pr_err("Time2Retain timer expired for SID: %u, cleaning up"
 			" iSCSI session.\n", sess->sid);
-	{
-	struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
-
-	if (tiqn) {
-		spin_lock(&tiqn->sess_err_stats.lock);
-		strcpy(tiqn->sess_err_stats.last_sess_fail_rem_name,
-			(void *)sess->sess_ops->InitiatorName);
-		tiqn->sess_err_stats.last_sess_failure_type =
-				ISCSI_SESS_ERR_CXN_TIMEOUT;
-		tiqn->sess_err_stats.cxn_timeout_errors++;
-		atomic_long_inc(&sess->conn_timeout_errors);
-		spin_unlock(&tiqn->sess_err_stats.lock);
-	}
-	}
 
+	iscsit_fill_cxn_timeout_err_stats(sess);
 	spin_unlock_bh(&se_tpg->session_lock);
 	iscsit_close_session(sess);
 }

drivers/target/iscsi/iscsi_target_util.c

@@ -933,22 +933,7 @@ void iscsit_handle_nopin_response_timeout(struct timer_list *t)
 	conn->nopin_response_timer_flags &= ~ISCSI_TF_RUNNING;
 	spin_unlock_bh(&conn->nopin_timer_lock);
 
-	{
-	struct iscsi_portal_group *tpg = conn->sess->tpg;
-	struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
-
-	if (tiqn) {
-		spin_lock_bh(&tiqn->sess_err_stats.lock);
-		strcpy(tiqn->sess_err_stats.last_sess_fail_rem_name,
-				conn->sess->sess_ops->InitiatorName);
-		tiqn->sess_err_stats.last_sess_failure_type =
-				ISCSI_SESS_ERR_CXN_TIMEOUT;
-		tiqn->sess_err_stats.cxn_timeout_errors++;
-		atomic_long_inc(&conn->sess->conn_timeout_errors);
-		spin_unlock_bh(&tiqn->sess_err_stats.lock);
-	}
-	}
-
+	iscsit_fill_cxn_timeout_err_stats(sess);
 	iscsit_cause_connection_reinstatement(conn, 0);
 	iscsit_dec_conn_usage_count(conn);
 }
@@ -1407,3 +1392,22 @@ struct iscsi_tiqn *iscsit_snmp_get_tiqn(struct iscsi_conn *conn)
 
 	return tpg->tpg_tiqn;
 }
+
+void iscsit_fill_cxn_timeout_err_stats(struct iscsi_session *sess)
+{
+	struct iscsi_portal_group *tpg = sess->tpg;
+	struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
+
+	if (!tiqn)
+		return;
+
+	spin_lock_bh(&tiqn->sess_err_stats.lock);
+	strlcpy(tiqn->sess_err_stats.last_sess_fail_rem_name,
+			sess->sess_ops->InitiatorName,
+			sizeof(tiqn->sess_err_stats.last_sess_fail_rem_name));
+	tiqn->sess_err_stats.last_sess_failure_type =
+			ISCSI_SESS_ERR_CXN_TIMEOUT;
+	tiqn->sess_err_stats.cxn_timeout_errors++;
+	atomic_long_inc(&sess->conn_timeout_errors);
+	spin_unlock_bh(&tiqn->sess_err_stats.lock);
+}

drivers/target/iscsi/iscsi_target_util.h

@@ -67,5 +67,6 @@ extern int rx_data(struct iscsi_conn *, struct kvec *, int, int);
 extern int tx_data(struct iscsi_conn *, struct kvec *, int, int);
 extern void iscsit_collect_login_stats(struct iscsi_conn *, u8, u8);
 extern struct iscsi_tiqn *iscsit_snmp_get_tiqn(struct iscsi_conn *);
+extern void iscsit_fill_cxn_timeout_err_stats(struct iscsi_session *);
 
 #endif /*** ISCSI_TARGET_UTIL_H ***/