On Mon, May 13, 2013 at 3:29 PM, Pravin B Shelar <pshe...@nicira.com> wrote:
> diff --git a/datapath/linux/compat/netdevice.c
> b/datapath/linux/compat/netdevice.c
> index d26fb5e..eea4c0f 100644
> --- a/datapath/linux/compat/netdevice.c
> +++ b/datapath/linux/compat/netdevice.c
> +struct sk_buff *rpl___skb_gso_segment(struct sk_buff *skb,
> + netdev_features_t features,
> + bool tx_path)
> +{
> + struct sk_buff *nskb;
> + char cb[sizeof(skb->cb)];
> +
> + /* From 3.9 kernel skb->cb is used by skb gso. Therefore
> + * make copy of it to restore it back. */
> +
> + memcpy(cb, skb->cb, sizeof(cb));
We usually try to have the main code use the APIs of the most recent
kernel and then add any hacks for old kernels in the compatibility
code. I think this is particularly important for the upstream versions
because as we upstream everything, pieces that are in compat code are
likely to be missed.
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