> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Joseph Gasparakis
> Sent: Monday, November 12, 2012 5:04 AM
> To: [email protected]; [email protected]; [email protected]
> Cc: Joseph Gasparakis; [email protected]; [email protected];
> Peter P Waskiewicz Jr
> Subject: [PATCH v2 3/3] ipgre: capture inner headers during encapsulation
> 
> Populating the inner header pointers of skb for ipgre
> This patch has been compile-tested only.
> 
> v2 Makes sure that checksumming does not take place if the offload flag is 
> set in
> the skb's netdev features
> 
> Signed-off-by: Joseph Gasparakis <[email protected]>
> Signed-off-by: Peter P Waskiewicz Jr <[email protected]>
> ---
>  net/ipv4/ip_gre.c | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
> index 7240f8e..e35ed52 100644
> --- a/net/ipv4/ip_gre.c
> +++ b/net/ipv4/ip_gre.c
> @@ -766,8 +766,10 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff
> *skb, struct net_device *dev
>       int    gre_hlen;
>       __be32 dst;
>       int    mtu;
> +     unsigned int offset;
> 
> -     if (skb->ip_summed == CHECKSUM_PARTIAL &&
> +     if (!(skb->dev->features & NETIF_F_HW_CSUM_ENC_BIT) &&

 You should test for NETIF_F_HW_CSUM_ENC and not for NETIF_F_HW_CSUM_ENC_BIT

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