1 files changed, 17 insertions, 0 deletions

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 4a3cdf8f3813..820643a3ba9c 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -143,6 +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,
@@ -159,6 +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
 };