X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fbridge%2Fbr_sysfs_if.c;h=820643a3ba9c35e98d1b679e50bfbac22e987aa3;hb=9a1607071c293e48b08bd703733480b1d55c7b93;hp=2da22927d8dd158ea341fe53d896dc1f53ea52b6;hpb=9cf637473c8535b5abe27fee79254c2d552e042a;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 2da2292..820643a 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -29,8 +29,7 @@ struct brport_attribute {
 #define BRPORT_ATTR(_name,_mode,_show,_store)		        \
 struct brport_attribute brport_attr_##_name = { 	        \
 	.attr = {.name = __stringify(_name), 			\
-		 .mode = _mode, 				\
-		 .owner = THIS_MODULE, },			\
+		 .mode = _mode },				\
 	.show	= _show,					\
 	.store	= _store,					\
 };
@@ -144,6 +143,22 @@ static ssize_t store_flush(struct net_bridge_port *p, unsigned long v)
 }
 static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);
 
+static ssize_t show_hairpin_mode(struct net_bridge_port *p, char *buf)
+{
+	int hairpin_mode = (p->flags & BR_HAIRPIN_MODE) ? 1 : 0;
+	return sprintf(buf, "%d\n", hairpin_mode);
+}
+static ssize_t store_hairpin_mode(struct net_bridge_port *p, unsigned long v)
+{
+	if (v)
+		p->flags |= BR_HAIRPIN_MODE;
+	else
+		p->flags &= ~BR_HAIRPIN_MODE;
+	return 0;
+}
+static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR,
+		   show_hairpin_mode, store_hairpin_mode);
+
 static struct brport_attribute *brport_attrs[] = {
 	&brport_attr_path_cost,
 	&brport_attr_priority,
@@ -160,6 +175,7 @@ static struct brport_attribute *brport_attrs[] = {
 	&brport_attr_forward_delay_timer,
 	&brport_attr_hold_timer,
 	&brport_attr_flush,
+	&brport_attr_hairpin_mode,
 	NULL
 };
 
@@ -190,7 +206,8 @@ static ssize_t brport_store(struct kobject * kobj,
 
 	val = simple_strtoul(buf, &endp, 0);
 	if (endp != buf) {
-		rtnl_lock();
+		if (!rtnl_trylock())
+			return restart_syscall();
 		if (p->dev && p->br && brport_attr->store) {
 			spin_lock_bh(&p->br->lock);
 			ret = brport_attr->store(p, val);
@@ -230,7 +247,7 @@ int br_sysfs_addif(struct net_bridge_port *p)
 			goto out2;
 	}
 
-	err= sysfs_create_link(&br->ifobj, &p->kobj, p->dev->name);
+	err = sysfs_create_link(br->ifobj, &p->kobj, p->dev->name);
 out2:
 	return err;
 }