From 9e56c21486f2a64473f36fa49475fd253422fbf6 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 8 Apr 2010 14:52:28 +0200 Subject: [PATCH] netfilter: only do skb_checksum_help on CHECKSUM_PARTIAL in ip_queue While doing yet another audit on ip_summed I noticed ip_queue calling skb_checksum_help unnecessarily. As we will set ip_summed to CHECKSUM_NONE when necessary in ipq_mangle_ipv4, there is no need to zap CHECKSUM_COMPLETE in ipq_build_packet_message. Signed-off-by: Herbert Xu Signed-off-by: Patrick McHardy --- net/ipv4/netfilter/ip_queue.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c index 2855f1f38cbc..d781513282d4 100644 --- a/net/ipv4/netfilter/ip_queue.c +++ b/net/ipv4/netfilter/ip_queue.c @@ -160,8 +160,7 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp) break; case IPQ_COPY_PACKET: - if ((entry->skb->ip_summed == CHECKSUM_PARTIAL || - entry->skb->ip_summed == CHECKSUM_COMPLETE) && + if (entry->skb->ip_summed == CHECKSUM_PARTIAL && (*errp = skb_checksum_help(entry->skb))) { read_unlock_bh(&queue_lock); return NULL; -- 2.30.2