From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Sun, 29 Mar 2015 21:07:58 -0700

The network protocol used to communicate with the host is the remote ndis (rndis)
protocol. We need to decorate each outgoing packet with a rndis header and
additional rndis state (rndis per-packet state). To manage this state, we
currently allocate memory in the transmit path. Eliminate this allocation by
requesting additional head room in the skb.

Series applied, thanks.