From 6e7bc478c9a006c701c14476ec9d389a484b4864 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 3 Feb 2017 14:29:42 -0800 Subject: [PATCH] net: skb_needs_check() accepts CHECKSUM_NONE for tx My recent change missed fact that UFO would perform a complete UDP checksum before segmenting in frags. In this case skb->ip_summed is set to CHECKSUM_NONE. We need to add this valid case to skb_needs_check() Fixes: b2504a5dbef3 ("net: reduce skb_warn_bad_offload() noise") Signed-off-by: Eric Dumazet Cc: Willem de Bruijn Signed-off-by: David S. Miller --- net/core/dev.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 4cde8bf..42ba037 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2637,9 +2637,10 @@ EXPORT_SYMBOL(skb_mac_gso_segment); static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path) { if (tx_path) - return skb->ip_summed != CHECKSUM_PARTIAL; - else - return skb->ip_summed == CHECKSUM_NONE; + return skb->ip_summed != CHECKSUM_PARTIAL && + skb->ip_summed != CHECKSUM_NONE; + + return skb->ip_summed == CHECKSUM_NONE; } /** -- 2.7.4