netdev - Re: [PATCH bpf-next] nfp: bpf: allow source ptr type be map ptr in memcpy optimization

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Message-ID: <6b7c9a6e-a969-1fea-3cbf-19c4fca05616@iogearbox.net>
Date:   Wed, 27 Jun 2018 10:58:13 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        alexei.starovoitov@...il.com
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        Jiong Wang <jiong.wang@...ronome.com>
Subject: Re: [PATCH bpf-next] nfp: bpf: allow source ptr type be map ptr in
 memcpy optimization

On 06/27/2018 04:48 AM, Jakub Kicinski wrote:
> From: Jiong Wang <jiong.wang@...ronome.com>
> 
> Map read has been supported on NFP, this patch enables optimization
> for memcpy from map to packet.
> 
> This patch also fixed one latent bug which will cause copying from
> unexpected address once memcpy for map pointer enabled.  The fixed
> code path was not exercised before.
> 
> Reported-by: Mary Pham <mary.pham@...ronome.com>
> Reported-by: David Beckett <david.beckett@...ronome.com>
> Signed-off-by: Jiong Wang <jiong.wang@...ronome.com>
> Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
> Acked-by: Song Liu <songliubraving@...com>

Applied to bpf-next, thanks guys!