linux-kernel - Re: [PATCH net-next v3 0/5] allocate dummy device dynamically

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Date: Thu, 04 Apr 2024 14:59:59 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Breno Leitao <leitao@...ian.org>
Cc: aleksander.lobakin@...el.com,  kuba@...nel.org,  davem@...emloft.net,
  pabeni@...hat.com,  edumazet@...gle.com,  elder@...nel.org,
  linux-arm-kernel@...ts.infradead.org,
  linux-mediatek@...ts.infradead.org,  nbd@....name,
  sean.wang@...iatek.com,  Mark-MC.Lee@...iatek.com,  lorenzo@...nel.org,
  taras.chornyi@...ision.eu,  Matthias Brugger <matthias.bgg@...il.com>,
  AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
  quic_jjohnson@...cinc.com,  leon@...nel.org,
  dennis.dalessandro@...nelisnetworks.com,  linux-kernel@...r.kernel.org,
  netdev@...r.kernel.org,  bpf@...r.kernel.org
Subject: Re: [PATCH net-next v3 0/5] allocate dummy device dynamically

Breno Leitao <leitao@...ian.org> writes:

> struct net_device shouldn't be embedded into any structure, instead,
> the owner should use the private space to embed their state into
> net_device.
>
> But, in some cases the net_device is embedded inside the private
> structure, which blocks the usage of zero-length arrays inside
> net_device.
>
> Create a helper to allocate a dummy device at dynamically runtime, and
> move the Ethernet devices to use it, instead of embedding the dummy
> device inside the private structure.
>
> This fixes all the network cases except for wireless drivers.
>
> PS: Due to lack of hardware, unfortunately all these patches are
> compiled tested only.

BTW if it helps, and if you have an ath10k or ath11k patch already, I
can run a quick test on real hardware.

-- 
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