scsi: libfc: Replace ->rport_destroy callback with function call

The ->rport_destroy callback only ever had one implementation,
so we can as well call it directly and drop the callback.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/fcoe/fcoe_ctlr.c

@@ -2180,7 +2180,7 @@ static void fcoe_ctlr_disc_stop_locked(struct fc_lport *lport)
 	list_for_each_entry_rcu(rdata, &lport->disc.rports, peers) {
 		if (kref_get_unless_zero(&rdata->kref)) {
 			lport->tt.rport_logoff(rdata);
-			kref_put(&rdata->kref, lport->tt.rport_destroy);
+			kref_put(&rdata->kref, fc_rport_destroy);
 		}
 	}
 	rcu_read_unlock();
@@ -2566,7 +2566,7 @@ static int fcoe_ctlr_vn_lookup(struct fcoe_ctlr *fip, u32 port_id, u8 *mac)
 		frport = fcoe_ctlr_rport(rdata);
 		memcpy(mac, frport->enode_mac, ETH_ALEN);
 		ret = 0;
-		kref_put(&rdata->kref, lport->tt.rport_destroy);
+		kref_put(&rdata->kref, fc_rport_destroy);
 	}
 	return ret;
 }
@@ -2678,7 +2678,7 @@ static void fcoe_ctlr_vn_beacon(struct fcoe_ctlr *fip,
 			}
 			frport->time = jiffies;
 		}
-		kref_put(&rdata->kref, lport->tt.rport_destroy);
+		kref_put(&rdata->kref, fc_rport_destroy);
 		return;
 	}
 	if (fip->state != FIP_ST_VNMP_UP)
@@ -2719,7 +2719,7 @@ static unsigned long fcoe_ctlr_vn_age(struct fcoe_ctlr *fip)
 			continue;
 		frport = fcoe_ctlr_rport(rdata);
 		if (!frport->time) {
-			kref_put(&rdata->kref, lport->tt.rport_destroy);
+			kref_put(&rdata->kref, fc_rport_destroy);
 			continue;
 		}
 		deadline = frport->time +
@@ -2732,7 +2732,7 @@ static unsigned long fcoe_ctlr_vn_age(struct fcoe_ctlr *fip)
 			lport->tt.rport_logoff(rdata);
 		} else if (time_before(deadline, next_time))
 			next_time = deadline;
-		kref_put(&rdata->kref, lport->tt.rport_destroy);
+		kref_put(&rdata->kref, fc_rport_destroy);
 	}
 	rcu_read_unlock();
 	return next_time;
@@ -3089,7 +3089,7 @@ static void fcoe_ctlr_vn_disc(struct fcoe_ctlr *fip)
 		frport = fcoe_ctlr_rport(rdata);
 		if (frport->time)
 			lport->tt.rport_login(rdata);
-		kref_put(&rdata->kref, lport->tt.rport_destroy);
+		kref_put(&rdata->kref, fc_rport_destroy);
 	}
 	rcu_read_unlock();
 	if (callback)

drivers/scsi/libfc/fc_disc.c

@@ -72,7 +72,7 @@ static void fc_disc_stop_rports(struct fc_disc *disc)
 	list_for_each_entry_rcu(rdata, &disc->rports, peers) {
 		if (kref_get_unless_zero(&rdata->kref)) {
 			lport->tt.rport_logoff(rdata);
-			kref_put(&rdata->kref, lport->tt.rport_destroy);
+			kref_put(&rdata->kref, fc_rport_destroy);
 		}
 	}
 	rcu_read_unlock();
@@ -303,7 +303,7 @@ static void fc_disc_done(struct fc_disc *disc, enum fc_disc_event event)
 			else
 				lport->tt.rport_logoff(rdata);
 		}
-		kref_put(&rdata->kref, lport->tt.rport_destroy);
+		kref_put(&rdata->kref, fc_rport_destroy);
 	}
 	rcu_read_unlock();
 	mutex_unlock(&disc->disc_mutex);
@@ -649,7 +649,7 @@ static void fc_disc_gpn_id_resp(struct fc_seq *sp, struct fc_frame *fp,
 		mutex_unlock(&disc->disc_mutex);
 	}
 out:
-	kref_put(&rdata->kref, lport->tt.rport_destroy);
+	kref_put(&rdata->kref, fc_rport_destroy);
 }
 
 /**

drivers/scsi/libfc/fc_lport.c

@@ -247,7 +247,7 @@ static void fc_lport_ptp_setup(struct fc_lport *lport,
 {
 	if (lport->ptp_rdata) {
 		lport->tt.rport_logoff(lport->ptp_rdata);
-		kref_put(&lport->ptp_rdata->kref, lport->tt.rport_destroy);
+		kref_put(&lport->ptp_rdata->kref, fc_rport_destroy);
 	}
 	mutex_lock(&lport->disc.disc_mutex);
 	lport->ptp_rdata = lport->tt.rport_create(lport, remote_fid);
@@ -1017,7 +1017,7 @@ static void fc_lport_reset_locked(struct fc_lport *lport)
 
 	if (lport->ptp_rdata) {
 		lport->tt.rport_logoff(lport->ptp_rdata);
-		kref_put(&lport->ptp_rdata->kref, lport->tt.rport_destroy);
+		kref_put(&lport->ptp_rdata->kref, fc_rport_destroy);
 		lport->ptp_rdata = NULL;
 	}
 
@@ -2129,7 +2129,7 @@ int fc_lport_bsg_request(struct fc_bsg_job *job)
 			if (!rdata)
 				break;
 			tov = rdata->e_d_tov;
-			kref_put(&rdata->kref, lport->tt.rport_destroy);
+			kref_put(&rdata->kref, fc_rport_destroy);
 		}
 
 		rc = fc_lport_ct_request(job, lport, did, tov);

include/scsi/libfc.h

@@ -651,12 +651,6 @@ struct libfc_function_template {
 	 */
 	struct fc_rport_priv *(*rport_lookup)(const struct fc_lport *, u32);
 
-	/*
-	 * Destroy an rport after final kref_put().
-	 * The argument is a pointer to the kref inside the fc_rport_priv.
-	 */
-	void (*rport_destroy)(struct kref *);
-
 	/*
 	 * Callback routine after the remote port is logged in
 	 *
@@ -1035,6 +1029,7 @@ void fc_lport_iterate(void (*func)(struct fc_lport *, void *), void *);
  *****************************/
 int fc_rport_init(struct fc_lport *);
 void fc_rport_terminate_io(struct fc_rport *);
+void fc_rport_destroy(struct kref *kref);
 
 /*
  * DISCOVERY LAYER