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ipv6: introduce ip6_rt_put()

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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>
This commit is contained in:
Amerigo Wang 2012-10-29 00:13:19 +00:00 • committed by David S. Miller
parent 6da025fa23
commit 94e187c015
11 changed files with 32 additions and 26 deletions
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9
include/net/ip6_fib.h
View file

@ -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;