Re: [Xen-devel] [PATCH net-next] xen-netback: fix xenvif_count_skb_slots()

[David Miller <davem@xxxxxxxxxxxxx>]

From: Paul Durrant <paul.durrant@xxxxxxxxxx>
Date: Fri, 4 Oct 2013 17:26:23 +0100

> Commit 4f0581d25827d5e864bcf07b05d73d0d12a20a5c introduced an error into
> xenvif_count_skb_slots() for skbs with a linear area spanning a page
> boundary. The alignment of skb->data needs to be taken into account, not
> just the head length. This patch fixes the issue by dry-running the code
> from xenvif_gop_skb() (and adjusting the comment above the function to note
> that).
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

There seems to be a lot of back and forth about what is the most
desirable way forward wrt. this commit and another similar one.

Please advise.

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