| From | Ben Hutchings <> | Date | Mon, 14 Nov 2016 00:14:20 +0000 | Subject | [PATCH 3.16 181/346] ipv6: suppress sparse warnings in IP6_ECN_set_ce() |
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3.16.39-rc1 review patch. If anyone has any objections, please let me know.
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From: Johannes Berg <johannes.berg@intel.com>
commit c15c0ab12fd62f2b19181d05c62d24bc9fa55a42 upstream.
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: 34ae6a1aa054 ("ipv6: update skb->csum when CE mark is propagated") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- include/net/inet_ecn.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -128,7 +128,8 @@ static inline int IP6_ECN_set_ce(struct 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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