[PATCH net-next] hv_netvsc: use skb_get_hash() instead of a homegrown implementation

[David Miller]

From: Vitaly Kuznetsov <vkuznets at redhat.com>
Date: Mon, 25 Jan 2016 16:00:41 +0100

> Recent changes to 'struct flow_keys' (e.g commit d34af823ff40 ("net: Add
> VLAN ID to flow_keys")) introduced a performance regression in netvsc
> driver. Is problem is, however, not the above mentioned commit but the
> fact that netvsc_set_hash() function did some assumptions on the struct
> flow_keys data layout and this is wrong.
> 
> Get rid of netvsc_set_hash() by switching to skb_get_hash(). This change
> will also imply switching to Jenkins hash from the currently used Toeplitz
> but it seems there is no good excuse for Toeplitz to stay.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets at redhat.com>

Applied.