netdev - Re: [PATCH net] net: airoha: Update tx cpu dma ring idx at the end of xmit loop

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Message-ID: <20241007135809.GB32733@kernel.org>
Date: Mon, 7 Oct 2024 14:58:09 +0100
From: Simon Horman <horms@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: Felix Fietkau <nbd@....name>, Sean Wang <sean.wang@...iatek.com>,
	Mark Lee <Mark-MC.Lee@...iatek.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org
Subject: Re: [PATCH net] net: airoha: Update tx cpu dma ring idx at the end
 of xmit loop

On Fri, Oct 04, 2024 at 03:51:26PM +0200, Lorenzo Bianconi wrote:
> Move the tx cpu dma ring index update out of transmit loop of
> airoha_dev_xmit routine in order to not start transmitting the packet
> before it is fully DMA mapped (e.g. fragmented skbs).
> 
> Fixes: 23020f049327 ("net: airoha: Introduce ethernet support for EN7581 SoC")
> Reported-by: Felix Fietkau <nbd@....name>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>

Reviewed-by: Simon Horman <horms@...nel.org>