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authorAmerigo Wang <amwang@redhat.com>2012-10-29 00:13:19 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-03 14:59:05 -0400
commit94e187c01512c9cf29e2ff54bf1a1b045f38293d (patch)
tree2149f4652fb0fc997ce5728f9574e1ab5351f0e5 /include/net/ip6_fib.h
parent6da025fa23bb10c82f80de319c837ed2b02306e4 (diff)
downloadlwn-94e187c01512c9cf29e2ff54bf1a1b045f38293d.tar.gz
lwn-94e187c01512c9cf29e2ff54bf1a1b045f38293d.zip
ipv6: introduce ip6_rt_put()
As suggested by Eric, we could introduce a helper function for ipv6 too, to avoid checking if rt is NULL before dst_release(). Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip6_fib.h')
-rw-r--r--include/net/ip6_fib.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 20210d79e36a..d1327e4d126b 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -213,6 +213,15 @@ static inline void rt6_set_from(struct rt6_info *rt, struct rt6_info *from)
dst_hold(new);
}
+static inline void ip6_rt_put(struct rt6_info *rt)
+{
+ /* dst_release() accepts a NULL parameter.
+ * We rely on dst being first structure in struct rt6_info
+ */
+ BUILD_BUG_ON(offsetof(struct rt6_info, dst) != 0);
+ dst_release(&rt->dst);
+}
+
struct fib6_walker_t {
struct list_head lh;
struct fib6_node *root, *node;