linux-kernel - Re: [PATCH] mmc: mediatek: use data instead of mrq parameter from msdc_{un}prepare

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Date:   Mon, 24 May 2021 16:10:33 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Yue Hu <zbestahu@...il.com>
Cc:     Chaotian Jing <chaotian.jing@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Yue Hu <huyue2@...ong.com>, zbestahu@....com
Subject: Re: [PATCH] mmc: mediatek: use data instead of mrq parameter from msdc_{un}prepare_data()

On Mon, 17 May 2021 at 12:09, Yue Hu <zbestahu@...il.com> wrote:
>
> From: Yue Hu <huyue2@...ong.com>
>
> We already have 'mrq->data' before calling these two functions, no
> need to find it again via 'mrq->data' internally. Also remove local
> data variable accordingly.
>
> Signed-off-by: Yue Hu <huyue2@...ong.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/host/mtk-sd.c | 20 ++++++++------------
>  1 file changed, 8 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
> index 898ed1b..c4db944 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -724,10 +724,8 @@ static inline void msdc_dma_setup(struct msdc_host *host, struct msdc_dma *dma,
>         writel(lower_32_bits(dma->gpd_addr), host->base + MSDC_DMA_SA);
>  }
>
> -static void msdc_prepare_data(struct msdc_host *host, struct mmc_request *mrq)
> +static void msdc_prepare_data(struct msdc_host *host, struct mmc_data *data)
>  {
> -       struct mmc_data *data = mrq->data;
> -
>         if (!(data->host_cookie & MSDC_PREPARE_FLAG)) {
>                 data->host_cookie |= MSDC_PREPARE_FLAG;
>                 data->sg_count = dma_map_sg(host->dev, data->sg, data->sg_len,
> @@ -735,10 +733,8 @@ static void msdc_prepare_data(struct msdc_host *host, struct mmc_request *mrq)
>         }
>  }
>
> -static void msdc_unprepare_data(struct msdc_host *host, struct mmc_request *mrq)
> +static void msdc_unprepare_data(struct msdc_host *host, struct mmc_data *data)
>  {
> -       struct mmc_data *data = mrq->data;
> -
>         if (data->host_cookie & MSDC_ASYNC_FLAG)
>                 return;
>
> @@ -1140,7 +1136,7 @@ static void msdc_request_done(struct msdc_host *host, struct mmc_request *mrq)
>
>         msdc_track_cmd_data(host, mrq->cmd, mrq->data);
>         if (mrq->data)
> -               msdc_unprepare_data(host, mrq);
> +               msdc_unprepare_data(host, mrq->data);
>         if (host->error)
>                 msdc_reset_hw(host);
>         mmc_request_done(mmc_from_priv(host), mrq);
> @@ -1311,7 +1307,7 @@ static void msdc_ops_request(struct mmc_host *mmc, struct mmc_request *mrq)
>         host->mrq = mrq;
>
>         if (mrq->data)
> -               msdc_prepare_data(host, mrq);
> +               msdc_prepare_data(host, mrq->data);
>
>         /* if SBC is required, we have HW option and SW option.
>          * if HW option is enabled, and SBC does not have "special" flags,
> @@ -1332,7 +1328,7 @@ static void msdc_pre_req(struct mmc_host *mmc, struct mmc_request *mrq)
>         if (!data)
>                 return;
>
> -       msdc_prepare_data(host, mrq);
> +       msdc_prepare_data(host, data);
>         data->host_cookie |= MSDC_ASYNC_FLAG;
>  }
>
> @@ -1340,14 +1336,14 @@ static void msdc_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
>                 int err)
>  {
>         struct msdc_host *host = mmc_priv(mmc);
> -       struct mmc_data *data;
> +       struct mmc_data *data = mrq->data;
>
> -       data = mrq->data;
>         if (!data)
>                 return;
> +
>         if (data->host_cookie) {
>                 data->host_cookie &= ~MSDC_ASYNC_FLAG;
> -               msdc_unprepare_data(host, mrq);
> +               msdc_unprepare_data(host, data);
>         }
>  }
>
> --
> 1.9.1
>