Commit c15c0ab1 authored by Johannes Berg's avatar Johannes Berg Committed by David S. Miller
Browse files

ipv6: suppress sparse warnings in IP6_ECN_set_ce() 



Pass the correct type __wsum to csum_sub() and csum_add(). This doesn't
really change anything since __wsum really *is* __be32, but removes the
address space warnings from sparse.

Cc: Eric Dumazet <edumazet@google.com>
Fixes: 34ae6a1a ("ipv6: update skb->csum when CE mark is propagated")
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Acked-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0ed661d5

include/net/inet_ecn.h

+2 −1
Original line number Diff line number Diff line
@@ -128,7 +128,8 @@ static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph) 
	to = from | htonl(INET_ECN_CE << 20);

	*(__be32 *)iph = to;

	if (skb->ip_summed == CHECKSUM_COMPLETE)

		skb->csum = csum_add(csum_sub(skb->csum, from), to);

		skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from),

				     (__force __wsum)to);

	return 1;

}

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