From 1a9e9ef684ec2bd27fcdb373a82957a0c050daf6 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 27 Sep 2006 19:03:36 -0700 Subject: [PATCH] [IPV6]: Disable SG for GSO unless we have checksum Because the system won't turn off the SG flag for us we need to do this manually on the IPv6 path. Otherwise we will throw IPv6 packets with bad checksums at the hardware. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- net/ipv6/ipv6_sockglue.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 4f3bb7fcc8b..de6b91981b3 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -123,6 +123,9 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features) struct ipv6hdr *ipv6h; struct inet6_protocol *ops; + if (!(features & NETIF_F_HW_CSUM)) + features &= ~NETIF_F_SG; + if (unlikely(skb_shinfo(skb)->gso_type & ~(SKB_GSO_UDP | SKB_GSO_DODGY | -- 2.20.1