Re: [PATCH v2 16/16] net: Add support for networking over Thunderbolt cable

[David Miller]

From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Date: Wed, 27 Sep 2017 16:42:38 +0300

> Using build_skb() then would require to allocate larger buffer, that
> includes NET_SKB_PAD + SKB_DATA_ALIGN(skb_shared_info) and that exceeds
> page size. Is this something supported by build_skb()? It was not clear
> to me based on the code and other users of build_skb() but I may be
> missing something.

You need NET_SKB_PAD before and SKB_DATA_ALIGN(skb_shared_info) afterwards.
An order 1 page, if that's what you need, should work just fine.