Merge "bridge: Add bridge API to access the bridge slave port" (1d6b7833) · Commits · e / devices / android_kernel_fairphone_FP5

include/linux/if_bridge.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -52,6 +52,11 @@ struct br_ip_list {

		extern void brioctl_set(int (ioctl_hook)(struct net , unsigned int, void __user *));

		#ifdef CONFIG_ENABLE_SFE
		extern struct net_device br_port_dev_get(struct net_device dev,
		unsigned char *addr);
		#endif

		#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
		int br_multicast_list_adjacent(struct net_device *dev,
		struct list_head *br_ip_list);

+33 −0

Original line number	Diff line number	Diff line
		@@ -757,3 +757,36 @@ bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
		return p->flags & flag;
		}
		EXPORT_SYMBOL_GPL(br_port_flag_is_set);

		#ifdef CONFIG_ENABLE_SFE
		/* br_port_dev_get()
		* Using the given addr, identify the port to which it is reachable,
		* returing a reference to the net device associated with that port.
		*
		* NOTE: Return NULL if given dev is not a bridge or
		* the mac has no associated port
		*/
		struct net_device br_port_dev_get(struct net_device dev, unsigned char *addr)
		{
		struct net_bridge_fdb_entry *fdbe;
		struct net_bridge *br;
		struct net_device *netdev = NULL;

		/* Is this a bridge? */
		if (!(dev->priv_flags & IFF_EBRIDGE))
		return NULL;

		br = netdev_priv(dev);

		/* Lookup the fdb entry and get reference to the port dev */
		rcu_read_lock();
		fdbe = br_fdb_find_rcu(br, addr, 0);
		if (fdbe && fdbe->dst) {
		netdev = fdbe->dst->dev; /* port device */
		dev_hold(netdev);
		}
		rcu_read_unlock();
		return netdev;
		}
		EXPORT_SYMBOL(br_port_dev_get);
		#endif