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udp: unbreak build lacking CONFIG_XFRM

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We must use pre-processor conditional block or suitable accessors to
manipulate skb->sp elsewhere builds lacking the CONFIG_XFRM will break.

Fixes: dce4551cb2 ("udp: preserve head state for IP_CMSG_PASSSEC")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2017-07-26 11:33:49 +02:00 committed by David S. Miller
parent 4813497b53
commit 9688f9b020
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/udp.c
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@ -1786,7 +1786,7 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
* the IP options and the cmsg flags, elsewhere can we clear all
* pending head states while they are hot in the cache
*/
if (likely(IPCB(skb)->opt.optlen == 0 && !skb->sp))
if (likely(IPCB(skb)->opt.optlen == 0 && !skb_sec_path(skb)))
skb_release_head_state(skb);
rc = __udp_enqueue_schedule_skb(sk, skb);