From: Tom Herbert <therb...@google.com>
commit 81249bea1fb003b6fcbc1709dd5a5fc1e26e168d upstream
Use skb_checksum_simple_validate to verify checksum.
Signed-off-by: Tom Herbert <therb...@google.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Jianchuan Wang <jianchuan.w...@windriver.com>
---
net/ipv6/ip6_gre.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 084bde3..4f7f364 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -468,17 +468,7 @@ static int ip6gre_rcv(struct sk_buff *skb)
goto drop;
if (flags&GRE_CSUM) {
- switch (skb->ip_summed) {
- case CHECKSUM_COMPLETE:
- csum = csum_fold(skb->csum);
- if (!csum)
- break;
- /* fall through */
- case CHECKSUM_NONE:
- skb->csum = 0;
- csum = __skb_checksum_complete(skb);
- skb->ip_summed = CHECKSUM_COMPLETE;
- }
+ csum = skb_checksum_simple_validate(skb);
offset += 4;
}
if (flags&GRE_KEY) {
--
1.9.1
--
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