netdev - [PATCH 4/7] icmp: Call skb_checksum_simple

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Message-ID: <alpine.DEB.2.02.1405071643110.944@tomh.mtv.corp.google.com>
Date:	Wed, 7 May 2014 16:52:21 -0700 (PDT)
From:	Tom Herbert <therbert@...gle.com>
To:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 4/7] icmp: Call skb_checksum_simple_validate

Use skb_checksum_simple_validate to verify checksum.

Signed-off-by: Tom Herbert <therbert@...gle.com>
---
 net/ipv4/icmp.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 0134663..fe52666 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -908,16 +908,8 @@ int icmp_rcv(struct sk_buff *skb)
 
 	ICMP_INC_STATS_BH(net, ICMP_MIB_INMSGS);
 
-	switch (skb->ip_summed) {
-	case CHECKSUM_COMPLETE:
-		if (!csum_fold(skb->csum))
-			break;
-		/* fall through */
-	case CHECKSUM_NONE:
-		skb->csum = 0;
-		if (__skb_checksum_complete(skb))
-			goto csum_error;
-	}
+	if (skb_checksum_simple_validate(skb))
+		goto csum_error;
 
 	if (!pskb_pull(skb, sizeof(*icmph)))
 		goto error;
-- 
1.9.1.423.g4596e3a

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