linux-kernel - Re: [PATCH v2 5/5] iommu/mediatek: Remove a unused "mapping" which is only for v1

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Date:   Thu, 16 Jun 2022 15:56:39 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>
Cc:     iommu@...ts.linux-foundation.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        mingyuan.ma@...iatek.com, yf.wang@...iatek.com,
        libo.kang@...iatek.com, chengci.xu@...iatek.com,
        youlin.pei@...iatek.com, anan.sun@...iatek.com,
        xueqi.zhang@...iatek.com, Guenter Roeck <groeck@...omium.org>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v2 5/5] iommu/mediatek: Remove a unused "mapping" which is
 only for v1



On 16/06/2022 07:42, Yong Wu wrote:
> Just remove a unused variable that only is for mtk_iommu_v1.
> 
> Fixes: 9485a04a5bb9 ("iommu/mediatek: Separate mtk_iommu_data for v1 and v2")

It does not fix a bug, so no fixes tag here needed.

With that:
Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

> Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> ---
>   drivers/iommu/mtk_iommu.c | 3 ---
>   1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index 5e86fd48928a..e65e705d9fc1 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -221,10 +221,7 @@ struct mtk_iommu_data {
>   	struct device			*smicomm_dev;
>   
>   	struct mtk_iommu_bank_data	*bank;
> -
> -	struct dma_iommu_mapping	*mapping; /* For mtk_iommu_v1.c */
>   	struct regmap			*pericfg;
> -
>   	struct mutex			mutex; /* Protect m4u_group/m4u_dom above */
>   
>   	/*