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| author | Florian Westphal <fw@strlen.de> | 2014-10-20 13:49:16 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-20 12:38:12 -0400 |
| commit | 1e16aa3ddf863c6b9f37eddf52503230a62dedb3 (patch) | |
| tree | 7e62dc2a614a315a05c3e182c29108d0ec0a029f /net/ipv6 | |
| parent | ce8ec4896749783bd6cdc457e6012cfc18e09c8b (diff) | |
| download | linux-1e16aa3ddf863c6b9f37eddf52503230a62dedb3.tar.gz linux-1e16aa3ddf863c6b9f37eddf52503230a62dedb3.tar.bz2 linux-1e16aa3ddf863c6b9f37eddf52503230a62dedb3.zip | |
net: gso: use feature flag argument in all protocol gso handlers
skb_gso_segment() has a 'features' argument representing offload features
available to the output path.
A few handlers, e.g. GRE, instead re-fetch the features of skb->dev and use
those instead of the provided ones when handing encapsulation/tunnels.
Depending on dev->hw_enc_features of the output device skb_gso_segment() can
then return NULL even when the caller has disabled all GSO feature bits,
as segmentation of inner header thinks device will take care of segmentation.
This e.g. affects the tbf scheduler, which will silently drop GRE-encap GSO skbs
that did not fit the remaining token quota as the segmentation does not work
when device supports corresponding hw offload capabilities.
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 91014d32488d..a071563a7e6e 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -90,7 +90,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, encap = SKB_GSO_CB(skb)->encap_level > 0; if (encap) - features = skb->dev->hw_enc_features & netif_skb_features(skb); + features &= skb->dev->hw_enc_features; SKB_GSO_CB(skb)->encap_level += sizeof(*ipv6h); ipv6h = ipv6_hdr(skb); |