Commit 198caeca authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ipv6: ip6_ptr rcu annotations 



(struct net_device)->ip6_ptr is rcu protected :

add __rcu annotation and proper rcu primitives.

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b616b09a

include/linux/netdevice.h

+1 −1
Original line number Diff line number Diff line
@@ -952,7 +952,7 @@ struct net_device { 
	void 			*atalk_ptr;	/* AppleTalk link 	*/

	struct in_device __rcu	*ip_ptr;	/* IPv4 specific data	*/

	void                    *dn_ptr;        /* DECnet specific data */

	void                    *ip6_ptr;       /* IPv6 specific data */

	struct inet6_dev __rcu	*ip6_ptr;       /* IPv6 specific data */

	void			*ec_ptr;	/* Econet specific data	*/

	void			*ax25_ptr;	/* AX.25 specific data */

	struct wireless_dev	*ieee80211_ptr;	/* IEEE 802.11 specific data,

net/core/dev.c

+1 −1
Original line number Diff line number Diff line
@@ -5416,7 +5416,7 @@ void netdev_run_todo(void) 
		/* paranoia */

		BUG_ON(netdev_refcnt_read(dev));

		WARN_ON(rcu_dereference_raw(dev->ip_ptr));

		WARN_ON(dev->ip6_ptr);

		WARN_ON(rcu_dereference_raw(dev->ip6_ptr));

		WARN_ON(dev->dn_ptr);



		if (dev->destructor)

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