Commit f7a6082b authored by Kuniyuki Iwashima's avatar Kuniyuki Iwashima Committed by Jakub Kicinski
Browse files

ipv6: Add __in6_dev_get_rtnl_net(). 



We will convert rtnl_lock() with rtnl_net_lock(), and we want to
convert __in6_dev_get() too.

__in6_dev_get() uses rcu_dereference_rtnl(), but as written in its
comment, rtnl_dereference() or rcu_dereference() is preferable.

Let's add __in6_dev_get_rtnl_net() that uses rtnl_net_dereference().

We can add the RCU version helper later if needed.

Signed-off-by: default avatarKuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-2-kuniyu@amazon.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent ba5f7850

include/net/addrconf.h

+5 −0
Original line number Diff line number Diff line
@@ -347,6 +347,11 @@ static inline struct inet6_dev *__in6_dev_get(const struct net_device *dev) 
	return rcu_dereference_rtnl(dev->ip6_ptr);

}



static inline struct inet6_dev *__in6_dev_get_rtnl_net(const struct net_device *dev)

{

	return rtnl_net_dereference(dev_net(dev), dev->ip6_ptr);

}



/**

 * __in6_dev_stats_get - get inet6_dev pointer for stats

 * @dev: network device