netfilter: only do skb_checksum_help on CHECKSUM_PARTIAL in nfnetlink_queue

As we will set ip_summed to CHECKSUM_NONE when necessary in
nfqnl_mangle, there is no need to zap CHECKSUM_COMPLETE in
nfqnl_build_packet_message.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 7ba4abc..08c1a33 100644 (file)
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -245,8 +245,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
                break;
 
        case NFQNL_COPY_PACKET:
-               if ((entskb->ip_summed == CHECKSUM_PARTIAL ||
-                    entskb->ip_summed == CHECKSUM_COMPLETE) &&
+               if (entskb->ip_summed == CHECKSUM_PARTIAL &&
                    skb_checksum_help(entskb)) {
                        spin_unlock_bh(&queue->lock);
                        return NULL;