linux-kernel - Re: [PATCH 1/3] mailbox: mtk-cmdq: Remove cmdq_cb

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Message-ID: <1622011887.21671.2.camel@mhfsdcap03>
Date:   Wed, 26 May 2021 14:51:27 +0800
From:   Yongqiang Niu <yongqiang.niu@...iatek.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>
CC:     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>,
        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 1/3] mailbox: mtk-cmdq: Remove cmdq_cb_status


Reviewed-by: Yongqiang Niu <yongqiang.niu@...iatek.com>

On Wed, 2021-05-26 at 14:15 +0800, Chun-Kuang Hu wrote:
> + Yongqiang
> 
> Chun-Kuang Hu <chunkuang.hu@...nel.org> 於 2021年3月15日 週一 上午7:33寫道：
> >
> > cmdq_cb_status is an error status. Use the standard error number
> > instead of cmdq_cb_status to prevent status duplication.
> >
> > 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       | 10 +++++-----
> >  include/linux/mailbox/mtk-cmdq-mailbox.h |  7 +------
> >  2 files changed, 6 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> > index 5665b6ea8119..3d37c1cd40f1 100644
> > --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> > +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> > @@ -180,7 +180,7 @@ static bool cmdq_thread_is_in_wfe(struct cmdq_thread *thread)
> >         return readl(thread->base + CMDQ_THR_WAIT_TOKEN) & CMDQ_THR_IS_WAITING;
> >  }
> >
> > -static void cmdq_task_exec_done(struct cmdq_task *task, enum cmdq_cb_status sta)
> > +static void cmdq_task_exec_done(struct cmdq_task *task, int sta)
> >  {
> >         struct cmdq_task_cb *cb = &task->pkt->async_cb;
> >         struct cmdq_cb_data data;
> > @@ -244,10 +244,10 @@ static void cmdq_thread_irq_handler(struct cmdq *cmdq,
> >                         curr_task = task;
> >
> >                 if (!curr_task || curr_pa == task_end_pa - CMDQ_INST_SIZE) {
> > -                       cmdq_task_exec_done(task, CMDQ_CB_NORMAL);
> > +                       cmdq_task_exec_done(task, 0);
> >                         kfree(task);
> >                 } else if (err) {
> > -                       cmdq_task_exec_done(task, CMDQ_CB_ERROR);
> > +                       cmdq_task_exec_done(task, -ENOEXEC);
> >                         cmdq_task_handle_error(curr_task);
> >                         kfree(task);
> >                 }
> > @@ -415,7 +415,7 @@ static void cmdq_mbox_shutdown(struct mbox_chan *chan)
> >
> >         list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
> >                                  list_entry) {
> > -               cmdq_task_exec_done(task, CMDQ_CB_ERROR);
> > +               cmdq_task_exec_done(task, -ECONNABORTED);
> >                 kfree(task);
> >         }
> >
> > @@ -453,7 +453,7 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)
> >                                  list_entry) {
> >                 cb = &task->pkt->async_cb;
> >                 if (cb->cb) {
> > -                       data.sta = CMDQ_CB_ERROR;
> > +                       data.sta = -ECONNABORTED;
> >                         data.data = cb->data;
> >                         cb->cb(data);
> >                 }
> > diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
> > index d5a983d65f05..2f7d9a37d611 100644
> > --- a/include/linux/mailbox/mtk-cmdq-mailbox.h
> > +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
> > @@ -65,13 +65,8 @@ enum cmdq_code {
> >         CMDQ_CODE_LOGIC = 0xa0,
> >  };
> >
> > -enum cmdq_cb_status {
> > -       CMDQ_CB_NORMAL = 0,
> > -       CMDQ_CB_ERROR
> > -};
> > -
> >  struct cmdq_cb_data {
> > -       enum cmdq_cb_status     sta;
> > +       int                     sta;
> >         void                    *data;
> >  };
> >
> > --
> > 2.17.1
> >