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authorEric Dumazet <eric.dumazet@gmail.com>2011-01-20 07:37:53 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-20 16:59:34 -0800
commitf2eda47df46f9953fc8a4fec820f34d539a8efbb (patch)
tree3f4a745c93f44a0375d85c96b284bff5d3b4e640 /net/ipv6
parent6193d2be290990b789021e06fa770ecb45319f2d (diff)
downloadop-kernel-dev-f2eda47df46f9953fc8a4fec820f34d539a8efbb.zip
op-kernel-dev-f2eda47df46f9953fc8a4fec820f34d539a8efbb.tar.gz
ipv6: raw: rcu annotations
Remove sparse warnings, using a function typedef to be able to use __rcu annotation on mh_filter pointer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/raw.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 86c3952..2bc6cd7 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -123,18 +123,18 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
}
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
-static int (*mh_filter)(struct sock *sock, struct sk_buff *skb);
+typedef int mh_filter_t(struct sock *sock, struct sk_buff *skb);
-int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
- struct sk_buff *skb))
+static mh_filter_t __rcu *mh_filter __read_mostly;
+
+int rawv6_mh_filter_register(mh_filter_t filter)
{
rcu_assign_pointer(mh_filter, filter);
return 0;
}
EXPORT_SYMBOL(rawv6_mh_filter_register);
-int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
- struct sk_buff *skb))
+int rawv6_mh_filter_unregister(mh_filter_t filter)
{
rcu_assign_pointer(mh_filter, NULL);
synchronize_rcu();
@@ -192,10 +192,10 @@ static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
* policy is placed in rawv6_rcv() because it is
* required for each socket.
*/
- int (*filter)(struct sock *sock, struct sk_buff *skb);
+ mh_filter_t *filter;
filter = rcu_dereference(mh_filter);
- filtered = filter ? filter(sk, skb) : 0;
+ filtered = filter ? (*filter)(sk, skb) : 0;
break;
}
#endif
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