linux-kernel - Re: [PATCH 3/3] mailbox: mtk-cmdq: Add struct cmdq_pkt in struct cmdq_cb

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Message-ID: <CAAOTY_-L1URHwkiCQv5Z0sF_caWTkU7_2+jw=9DLfCyPyhfT+Q@mail.gmail.com>
Date:   Wed, 26 May 2021 14:18:12 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Jassi Brar <jassisinghbrar@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Houlong Wei <houlong.wei@...iatek.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 3/3] mailbox: mtk-cmdq: Add struct cmdq_pkt in struct cmdq_cb_data

+ Yongqiang

Chun-Kuang Hu <chunkuang.hu@...nel.org> 於 2021年3月15日 週一 上午7:33寫道：
>
> Current client use 'struct cmdq_pkt' as callback data, so
> change 'void *data' to 'struct cmdq_pkt *pkt'. Keep data
> until client use pkt instead of data.
>
> Cc: Jassi Brar <jassisinghbrar@...il.com>
> Cc: Matthias Brugger <matthias.bgg@...il.com>
> Cc: Houlong Wei <houlong.wei@...iatek.com>
> Cc: Bibby Hsieh <bibby.hsieh@...iatek.com>
> Cc: Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-mediatek@...ts.infradead.org
> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>
> ---
>  drivers/mailbox/mtk-cmdq-mailbox.c       | 2 ++
>  include/linux/mailbox/mtk-cmdq-mailbox.h | 1 +
>  2 files changed, 3 insertions(+)
>
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> index ef59e2234f22..99a9e0787501 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -188,6 +188,7 @@ static void cmdq_task_exec_done(struct cmdq_task *task, int sta)
>         WARN_ON(cb->cb == (cmdq_async_flush_cb)NULL);
>         data.sta = sta;
>         data.data = cb->data;
> +       data.pkt = task->pkt;
>         if (cb->cb)
>                 cb->cb(data);
>
> @@ -456,6 +457,7 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)
>                                  list_entry) {
>                 data.sta = -ECONNABORTED;
>                 data.data = cb->data;
> +               data.pkt = task->pkt;
>                 cb = &task->pkt->async_cb;
>                 if (cb->cb)
>                         cb->cb(data);
> diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
> index 2f7d9a37d611..44365aab043c 100644
> --- a/include/linux/mailbox/mtk-cmdq-mailbox.h
> +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
> @@ -68,6 +68,7 @@ enum cmdq_code {
>  struct cmdq_cb_data {
>         int                     sta;
>         void                    *data;
> +       struct cmdq_pkt         *pkt;
>  };
>
>  typedef void (*cmdq_async_flush_cb)(struct cmdq_cb_data data);
> --
> 2.17.1
>