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authorAlexander Duyck <aduyck@mirantis.com>2016-02-05 15:28:26 -0800
committerDavid S. Miller <davem@davemloft.net>2016-02-11 08:55:34 -0500
commitf245d079c1d11dc6927e56f5a89dd566fef2a415 (patch)
treeb04ab120785a4f827079361fffc1b78cfb88f8f3 /net/core/skbuff.c
parentudp: Use uh->len instead of skb->len to compute checksum in segmentation (diff)
downloadlinux-dev-f245d079c1d11dc6927e56f5a89dd566fef2a415.tar.xz
linux-dev-f245d079c1d11dc6927e56f5a89dd566fef2a415.zip
net: Allow tunnels to use inner checksum offloads with outer checksums needed
This patch enables us to use inner checksum offloads if provided by hardware with outer checksums computed by software. It basically reduces encap_hdr_csum to an advisory flag for now, but based on the fact that SCTP may be getting segmentation support before long I thought we may want to keep it as it is possible we may need to support CRC32c and 1's compliment checksum in the same packet at some point in the future. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/skbuff.c')
-rw-r--r--net/core/skbuff.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 88262c82b96a..b0cce744e2a0 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3004,8 +3004,7 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
if (unlikely(!proto))
return ERR_PTR(-EINVAL);
- csum = !head_skb->encap_hdr_csum &&
- !!can_checksum_protocol(features, proto);
+ csum = !!can_checksum_protocol(features, proto);
headroom = skb_headroom(head_skb);
pos = skb_headlen(head_skb);