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-rw-r--r--net/bridge/br_private.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 229d820..045d56e 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -426,6 +426,16 @@ netdev_features_t br_features_recompute(struct net_bridge *br,
int br_handle_frame_finish(struct sk_buff *skb);
rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
+static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
+{
+ return rcu_dereference(dev->rx_handler) == br_handle_frame;
+}
+
+static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
+{
+ return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
+}
+
/* br_ioctl.c */
int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
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