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net: fix sparse warning in sk_dst_set()

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sk_dst_cache has __rcu annotation, so we need a cast to avoid
following sparse error :

include/net/sock.h:1774:19: warning: incorrect type in initializer (different address spaces)
include/net/sock.h:1774:19:    expected struct dst_entry [noderef] <asn:4>*__ret
include/net/sock.h:1774:19:    got struct dst_entry *dst

Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: kbuild test robot <[email protected]>
Fixes: 7f50236153 ("ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix")
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2014-07-02 02:39:38 -07:00 • committed by David S. Miller
commit 5925a0555b
1 changed files with 1 additions and 1 deletions
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2
include/net/sock.h
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@ -1771,7 +1771,7 @@ sk_dst_set(struct sock *sk, struct dst_entry *dst)
struct dst_entry *old_dst;
sk_tx_queue_clear(sk);
old_dst = xchg(&sk->sk_dst_cache, dst);
old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst);
dst_release(old_dst);
}