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xfrm: fix bogus WARN_ON with ipv6 

net/xfrm/xfrm_input.c:378:17: warning: this statement may fall through [-Wimplicit-fallthrough=]
skb->protocol = htons(ETH_P_IPV6);

... the fallthrough then causes a bogus WARN_ON().

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 4c203b0454 ("xfrm: remove eth_proto value from xfrm_state_afinfo")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Florian Westphal 2019-06-12 10:30:58 +02:00 committed by Steffen Klassert
parent 4f518e802c
commit 1be451d993
1 changed files with 1 additions and 0 deletions
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net/xfrm/xfrm_input.c
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@ -376,6 +376,7 @@ static int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb)
break;
case AF_INET6:
skb->protocol = htons(ETH_P_IPV6);
break;
default:
WARN_ON_ONCE(1);
break;