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Message-ID: <87cyogkkju.fsf@kernel.org>
Date: Mon, 17 Jun 2024 12:03:49 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Breno Leitao <leitao@...ian.org>
Cc: linux-wireless@...r.kernel.org, Felix Fietkau <nbd@....name>, Lorenzo
Bianconi <lorenzo@...nel.org>, Ryder Lee <ryder.lee@...iatek.com>,
Shayne Chen <shayne.chen@...iatek.com>, Sean Wang
<sean.wang@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
netdev@...r.kernel.org, horms@...nel.org, kees@...nel.org,
kuba@...nel.org, Bo Jiao <Bo.Jiao@...iatek.com>, Daniel Golle
<daniel@...rotopia.org>, Alexander Couzens <lynxis@...0.eu>, Deren Wu
<deren.wu@...iatek.com>, Ming Yen Hsieh <mingyen.hsieh@...iatek.com>,
Leon Yen <leon.yen@...iatek.com>, Quan Zhou <quan.zhou@...iatek.com>,
Ingo Rohloff <lundril@....de>, Sujuan Chen <sujuan.chen@...iatek.com>,
StanleyYP Wang <StanleyYP.Wang@...iatek.com>, Benjamin Lin
<benjamin-jw.lin@...iatek.com>, Peter Chiu <chui-hao.chiu@...iatek.com>,
linux-kernel@...r.kernel.org (open list:ARM/Mediatek SoC support),
linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC
support), linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek
SoC support)
Subject: Re: [PATCH] wifi: mt76: un-embedd netdev from mt76_dev
Breno Leitao <leitao@...ian.org> writes:
> Embedding net_device into structures prohibits the usage of flexible
> arrays in the net_device structure. For more details, see the discussion
> at [1].
>
> Un-embed the net_devices from struct mt76_dev by converting them
> into pointers, and allocating them dynamically. Use the leverage
> alloc_netdev_dummy() to allocate the net_device object at
> mt76_dma_init().
>
> The free of the device occurs at mt76_dma_cleanup().
>
> Link: https://lore.kernel.org/all/20240229225910.79e224cf@kernel.org/ [1]
> Signed-off-by: Breno Leitao <leitao@...ian.org>
> ---
>
> PS: Due to the lack of hardware, this patch was not tested on a real
> hardware, unfortunately.
>
> PS2: this is the last driver that is still using embedded netdevices.
Is this patch a dependency to other patches? I'm asking because it will
be _slow_ to get this patch to net-next via wireless trees. If there's
urgency then it's much better to take it directly to net-next (of course
with acks from Felix and Lorenzo).
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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