bridge: simplify the flush_store by calling store_bridge_parm

There are some repetitive codes in flush_store, we can remove
them by calling store_bridge_parm, also, it would send rtnl notification
after we add it in store_bridge_parm in the following patches.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 6b8091407ca3126b333c76c5104f5a8ca6803e49..c48f6b0b20229a9c1b8eb032b3d85c7fe58763a1 100644 (file)
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -336,17 +336,17 @@ static ssize_t group_addr_store(struct device *d,
 
 static DEVICE_ATTR_RW(group_addr);
 
+static int set_flush(struct net_bridge *br, unsigned long val)
+{
+       br_fdb_flush(br);
+       return 0;
+}
+
 static ssize_t flush_store(struct device *d,
                           struct device_attribute *attr,
                           const char *buf, size_t len)
 {
-       struct net_bridge *br = to_bridge(d);
-
-       if (!ns_capable(dev_net(br->dev)->user_ns, CAP_NET_ADMIN))
-               return -EPERM;
-
-       br_fdb_flush(br);
-       return len;
+       return store_bridge_parm(d, buf, len, set_flush);
 }
 static DEVICE_ATTR_WO(flush);