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Message-ID: <20240620171950.GO959333@kernel.org>
Date: Thu, 20 Jun 2024 18:19:50 +0100
From: Simon Horman <horms@...nel.org>
To: Breno Leitao <leitao@...ian.org>
Cc: kvalo@...nel.org, linux-wireless@...r.kernel.org, davem@...emloft.net,
	edumazet@...gle.com, pabeni@...hat.com,
	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, kees@...nel.org,
	Bo Jiao <Bo.Jiao@...iatek.com>, 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>,
	Peter Chiu <chui-hao.chiu@...iatek.com>,
	StanleyYP Wang <StanleyYP.Wang@...iatek.com>,
	Benjamin Lin <benjamin-jw.lin@...iatek.com>,
	"open list:ARM/Mediatek SoC support" <linux-kernel@...r.kernel.org>,
	"moderated list:ARM/Mediatek SoC support" <linux-arm-kernel@...ts.infradead.org>,
	"moderated list:ARM/Mediatek SoC support" <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH net-next v2] wifi: mt76: un-embedd netdev from mt76_dev

On Wed, Jun 19, 2024 at 03:52:36AM -0700, Breno Leitao wrote:
> 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]
> Reviewed-by: Simon Horman <horms@...nel.org>
> Signed-off-by: Breno Leitao <leitao@...ian.org>
> ---
> 
> Changelog:
>  * v2:
> 	- Renamed mt76_from_netdev() to mt76_priv(), and returns a
> 	  void pointer instead of struct mt76_dev, avoiding the cast
> 	  later, as suggested by Simon Horman.

Thanks for the update, it looks good to me.

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