linux-kernel - Re: [PATCH v4 2/2] staging: most: dim2: correct misleading struct type name

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Date:   Thu, 20 Oct 2022 02:00:29 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     outreachy@...ts.linux.dev, gregkh@...uxfoundation.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        kumarpraveen@...ux.microsoft.com, saurabh.truth@...il.com
Subject: Re: [PATCH v4 2/2] staging: most: dim2: correct misleading struct
 type name

On Wed, Oct 19, 2022 at 10:08:53PM +0200, Julia Lawall wrote:
>
>
> On Thu, 20 Oct 2022, Deepak R Varma wrote:
>
> > Correct misleading struct type name dim_ch_state_t to dim_ch_state
> > since this not a typedef but a normal structure declaration.
> >
> > Suggested-by: Julia Lawall <julia.lawall@...ia.fr>
> > Signed-off-by: Deepak R Varma <drv@...lo.com>
> > ---
> >
> > Changes in v4:
> >    1. Correct patch subject and log message. Use struct type name instead of
> >       variable name for the change description. Feedback from julia.lawall@...ia.fr
> >
> > Changes in v3:
> >    1. Patch introduced in the patch set
> >
> >  drivers/staging/most/dim2/dim2.c | 2 +-
> >  drivers/staging/most/dim2/hal.c  | 4 ++--
> >  drivers/staging/most/dim2/hal.h  | 6 +++---
> >  3 files changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
> > index 4c1f27898a29..a69a61a69283 100644
> > --- a/drivers/staging/most/dim2/dim2.c
> > +++ b/drivers/staging/most/dim2/dim2.c
> > @@ -161,7 +161,7 @@ static int try_start_dim_transfer(struct hdm_channel *hdm_ch)
> >  	struct list_head *head = &hdm_ch->pending_list;
> >  	struct mbo *mbo;
> >  	unsigned long flags;
> > -	struct dim_ch_state_t st;
> > +	struct dim_ch_state st;
>
> Is there another use in service_done_flag?

Hi,
I did not understand your question fully. This is from a different function
try_start_dim_transfer where the variable st is used down the line in the
execution. This time the channel state is retrieved by calling
dim_get_channel_state function. The state is simply computed and set. Should I
improve this as well?

If you are asking something different, could you please elaborate?

./drv

>
> julia
>
> >
> >  	BUG_ON(!hdm_ch);
> >  	BUG_ON(!hdm_ch->is_initialized);
> > diff --git a/drivers/staging/most/dim2/hal.c b/drivers/staging/most/dim2/hal.c
> > index 65282c276862..a5d40b5b138a 100644
> > --- a/drivers/staging/most/dim2/hal.c
> > +++ b/drivers/staging/most/dim2/hal.c
> > @@ -943,8 +943,8 @@ u8 dim_service_channel(struct dim_channel *ch)
> >  	return channel_service(ch);
> >  }
> >
> > -struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
> > -					     struct dim_ch_state_t *state_ptr)
> > +struct dim_ch_state *dim_get_channel_state(struct dim_channel *ch,
> > +					   struct dim_ch_state *state_ptr)
> >  {
> >  	if (!ch || !state_ptr)
> >  		return NULL;
> > diff --git a/drivers/staging/most/dim2/hal.h b/drivers/staging/most/dim2/hal.h
> > index 20531449acab..ef10a8741c10 100644
> > --- a/drivers/staging/most/dim2/hal.h
> > +++ b/drivers/staging/most/dim2/hal.h
> > @@ -27,7 +27,7 @@ enum mlb_clk_speed {
> >  	CLK_8192FS = 7,
> >  };
> >
> > -struct dim_ch_state_t {
> > +struct dim_ch_state {
> >  	bool ready; /* Shows readiness to enqueue next buffer */
> >  	u16 done_buffers; /* Number of completed buffers */
> >  };
> > @@ -87,8 +87,8 @@ void dim_service_ahb_int_irq(struct dim_channel *const *channels);
> >
> >  u8 dim_service_channel(struct dim_channel *ch);
> >
> > -struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
> > -					     struct dim_ch_state_t *state_ptr);
> > +struct dim_ch_state *dim_get_channel_state(struct dim_channel *ch,
> > +					   struct dim_ch_state *state_ptr);
> >
> >  u16 dim_dbr_space(struct dim_channel *ch);
> >
> > --
> > 2.30.2
> >
> >
> >
> >
> >