From: Vinod Koul <vkoul@kernel.org>
To: Frank.Li@kernel.org, biju.das.jz@bp.renesas.com,
geert+renesas@glider.be,
Claudiu Beznea <claudiu.beznea@kernel.org>
Cc: claudiu.beznea@tuxon.dev, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>,
stable@vger.kernel.org,
Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Subject: Re: [PATCH] dmaengine: sh: rz-dmac: Fix off-by-one in residue lmdesc lookup
Date: Mon, 05 Oct 2026 17:43:28 +0200 [thread overview]
Message-ID: <179121500885.358863.14766200941521520131.b4-ty@kernel.org> (raw)
In-Reply-To: <20260922092037.224884-1-claudiu.beznea@kernel.org>
On Tue, 22 Sep 2026 12:20:37 +0300, Claudiu Beznea wrote:
> lmdesc->nxla is the address of the next descriptor, so comparing it
> against CRLA, which is the address of the current descriptor,
> finds the descriptor before the active one, not the active one.
> The residue loops below then summed one lmdesc too many on top of
> that.
>
> Compare each descriptor's own address to CRLA instead, and add tb
> after advancing to the next lmdesc.
>
> [...]
Applied, thanks!
[1/1] dmaengine: sh: rz-dmac: Fix off-by-one in residue lmdesc lookup
commit: 9db8e502b34bc1df8078abd0169a4fa0624de3bb
Best regards,
--
~Vinod
prev parent reply other threads:[~2026-10-05 15:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-22 9:20 Claudiu Beznea
2026-09-24 21:17 ` Frank Li
2026-10-05 15:43 ` Vinod Koul [this message]
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