From: Frank Li <Frank.li@oss.nxp.com>
To: xianwei.zhao@amlogic.com
Cc: Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>,
linux-amlogic@lists.infradead.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel test robot <lkp@intel.com>
Subject: Re: [PATCH v2] dmaengine: amlogic: Fix little-endian variable operations issue
Date: Tue, 13 Oct 2026 09:35:18 -0500 [thread overview]
Message-ID: <as5Bpuw5Ddj6UiSf@SMW015318> (raw)
In-Reply-To: <20261013-fix-a9-dma-v2-1-860146b2ef57@amlogic.com>
On Tue, Oct 13, 2026 at 03:21:11AM +0000, Xianwei Zhao via B4 Relay wrote:
> From: Xianwei Zhao <xianwei.zhao@amlogic.com>
>
> In dma_async_tx_descriptor function,fix the situation where the operation
> processing of the little-endian variable requires corresponding conversion.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202610060235.PuCxWQdk-lkp@intel.com/
> Fixes: b84b5197e344 ("dmaengine: amlogic: Add general DMA driver for A9")
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
> ---
> Fix the operation little-endian variable issue.
> ---
> Changes in v2:
> - Simplify processing and rename subject to 'dmaengine', suggested by Frank.
> - Link to v1: https://lore.kernel.org/r/20261012-fix-a9-dma-v1-1-2d83008f3e32@amlogic.com
> ---
> drivers/dma/amlogic-dma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/dma/amlogic-dma.c b/drivers/dma/amlogic-dma.c
> index 78ee2337ae71..dbd23d29397d 100644
> --- a/drivers/dma/amlogic-dma.c
> +++ b/drivers/dma/amlogic-dma.c
> @@ -321,7 +321,7 @@ static struct dma_async_tx_descriptor *aml_dma_prep_slave_sg
>
> /* the last sg set eoc flag */
> sg_link--;
> - sg_link->ctl |= LINK_EOC;
> + sg_link->ctl |= cpu_to_le32(LINK_EOC);
>
> return vchan_tx_prep(&aml_chan->vchan, &aml_desc->vd, flags);
> }
>
> ---
> base-commit: 42c31fec1ca76b8b5f7759def122d418dff2cd4b
> change-id: 20261012-fix-a9-dma-4be7e61ba653
>
> Best regards,
> --
> Xianwei Zhao <xianwei.zhao@amlogic.com>
>
>
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prev parent reply other threads:[~2026-10-13 14:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 3:21 Xianwei Zhao via B4 Relay
2026-10-13 14:35 ` Frank Li [this message]
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