net: fix sparse warning in sk_dst_set()
[ Upstream commit5925a0555b
] 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 <edumazet@google.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Fixes:7f50236153
("ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix") Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1796,7 +1796,7 @@ sk_dst_set(struct sock *sk, struct dst_entry *dst)
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struct dst_entry *old_dst;
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sk_tx_queue_clear(sk);
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old_dst = xchg(&sk->sk_dst_cache, dst);
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old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst);
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dst_release(old_dst);
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}
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