From: "K. Y. Srinivasan"
Date: Tue, 1 Dec 2015 16:42:58 -0800
> In an attempt to avoid having to allocate memory on the send path, the netvsc
> driver was requesting additional head room so that both rndis header and the
> netvsc packet (the state that had to persist) could be placed in the skb.
In an attempt to avoid having to allocate memory on the send path, the netvsc
driver was requesting additional head room so that both rndis header and the
netvsc packet (the state that had to persist) could be placed in the skb.
Since the amount of head room requested was exceeding the default head