net: Add ndo_gso_check
Add ndo_gso_check which a device can define to indicate whether is
is capable of doing GSO on a packet. This funciton would be called from
the stack to determine whether software GSO is needed to be done. A
driver should populate this function if it advertises GSO types for
which there are combinations that it wouldn't be able to handle. For
instance a device that performs UDP tunneling might only implement
support for transparent Ethernet bridging type of inner packets
or might have limitations on lengths of inner headers.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index 4699dcf..9f77a78 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2675,7 +2675,7 @@
if (skb->encapsulation)
features &= dev->hw_enc_features;
- if (netif_needs_gso(skb, features)) {
+ if (netif_needs_gso(dev, skb, features)) {
struct sk_buff *segs;
segs = skb_gso_segment(skb, features);