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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Koichiro Den <den@valinux.co.jp>
Cc: Frank Li <Frank.li@oss.nxp.com>,
	linux-renesas-soc@vger.kernel.org, Vinod Koul <vkoul@kernel.org>,
	Frank Li <Frank.Li@kernel.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
	dmaengine@vger.kernel.org
Subject: Re: [PATCH 2/3] dmaengine: rcar-dmac: Add missing dma_descriptor_unmap()
Date: Sun, 27 Sep 2026 14:43:31 +0200	[thread overview]
Message-ID: <arkPcxePb1G1vyZt@shikoro> (raw)
In-Reply-To: <3odvtlxs62ulw4obrzfy3xlf74k4wltjkj6k4axsmdx3hnyo3a@rx2pm422eozp>

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Hi Koichiro-san,

> actually fine, but in any case, I personally feel the unmap infrastructure could
> use some cleanup.)

I share this thought, and I guess, Laurent expressed this, too. This is
a separate task to tackle, though. I still think your original patch
here makes the situation better by making sure the cache gets
invalidated and should be applied. Or am I missing something?

Happy hacking,

   Wolfram


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  reply	other threads:[~2026-09-27 12:43 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-17  7:12 [PATCH 0/3] dmaengine: rcar-dmac: collection of small missed fixes Wolfram Sang
2026-09-17  7:12 ` [PATCH 1/3] dmaengine: rcar-dmac: Fix PM usage counter imbalance Wolfram Sang
2026-09-17  7:17   ` Laurent Pinchart
2026-09-17  7:12 ` [PATCH 2/3] dmaengine: rcar-dmac: Add missing dma_descriptor_unmap() Wolfram Sang
2026-09-17  7:25   ` sashiko-bot
2026-09-17  7:38   ` Laurent Pinchart
2026-09-17  8:23     ` Wolfram Sang
2026-09-17 16:39   ` Frank Li
2026-09-18 13:07     ` Koichiro Den
2026-09-27 12:43       ` Wolfram Sang [this message]
2026-09-27 13:11         ` Wolfram Sang
2026-09-29  4:13           ` Koichiro Den
2026-09-27 12:38     ` Wolfram Sang
2026-09-17  7:12 ` [PATCH 3/3] dmaengine: rcar-dmac: Remove redundant dev_err()/dev_err_probe() Wolfram Sang

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