[PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Lukas Bulwahn]

There never was a config IMX_GPT_ICAP in the repository. So remove the code
conditional on this config and simplify the callers that just called empty
functions.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
---
 drivers/staging/media/imx/imx-media-fim.c | 54 -----------------------
 1 file changed, 54 deletions(-)

diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
index 3a9182933508..19a48eb445fd 100644
--- a/drivers/staging/media/imx/imx-media-fim.c
+++ b/drivers/staging/media/imx/imx-media-fim.c
@@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
 		send_fim_event(fim, error_avg);
 }
 
-#ifdef CONFIG_IMX_GPT_ICAP
-/*
- * Input Capture method of measuring frame intervals. Not subject
- * to interrupt latency.
- */
-static void fim_input_capture_handler(int channel, void *dev_id,
-				      ktime_t timestamp)
-{
-	struct imx_media_fim *fim = dev_id;
-	unsigned long flags;
-
-	spin_lock_irqsave(&fim->lock, flags);
-
-	frame_interval_monitor(fim, timestamp);
-
-	if (!completion_done(&fim->icap_first_event))
-		complete(&fim->icap_first_event);
-
-	spin_unlock_irqrestore(&fim->lock, flags);
-}
-
-static int fim_request_input_capture(struct imx_media_fim *fim)
-{
-	init_completion(&fim->icap_first_event);
-
-	return mxc_request_input_capture(fim->icap_channel,
-					 fim_input_capture_handler,
-					 fim->icap_flags, fim);
-}
-
-static void fim_free_input_capture(struct imx_media_fim *fim)
-{
-	mxc_free_input_capture(fim->icap_channel, fim);
-}
-
-#else /* CONFIG_IMX_GPT_ICAP */
-
-static int fim_request_input_capture(struct imx_media_fim *fim)
-{
-	return 0;
-}
-
-static void fim_free_input_capture(struct imx_media_fim *fim)
-{
-}
-
-#endif /* CONFIG_IMX_GPT_ICAP */
-
 /*
  * In case we are monitoring the first frame interval after streamon
  * (when fim->num_skip = 0), we need a valid fim->last_ts before we
@@ -435,14 +387,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
 		spin_unlock_irqrestore(&fim->lock, flags);
 
 		if (icap_enabled(fim)) {
-			ret = fim_request_input_capture(fim);
-			if (ret)
-				goto out;
 			fim_acquire_first_ts(fim);
 		}
-	} else {
-		if (icap_enabled(fim))
-			fim_free_input_capture(fim);
 	}
 
 	fim->stream_on = on;
-- 
2.17.1

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Tommaso Merciai]

Hi Lukas,

On Tue, Nov 22, 2022 at 02:23:30PM +0100, Lukas Bulwahn wrote:
> There never was a config IMX_GPT_ICAP in the repository. So remove the code
> conditional on this config and simplify the callers that just called empty
> functions.
> 
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> ---
>  drivers/staging/media/imx/imx-media-fim.c | 54 -----------------------
>  1 file changed, 54 deletions(-)
> 
> diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> index 3a9182933508..19a48eb445fd 100644
> --- a/drivers/staging/media/imx/imx-media-fim.c
> +++ b/drivers/staging/media/imx/imx-media-fim.c
> @@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
>  		send_fim_event(fim, error_avg);
>  }
>  
> -#ifdef CONFIG_IMX_GPT_ICAP
> -/*
> - * Input Capture method of measuring frame intervals. Not subject
> - * to interrupt latency.
> - */
> -static void fim_input_capture_handler(int channel, void *dev_id,
> -				      ktime_t timestamp)
> -{
> -	struct imx_media_fim *fim = dev_id;
> -	unsigned long flags;
> -
> -	spin_lock_irqsave(&fim->lock, flags);
> -
> -	frame_interval_monitor(fim, timestamp);
> -
> -	if (!completion_done(&fim->icap_first_event))
> -		complete(&fim->icap_first_event);
> -
> -	spin_unlock_irqrestore(&fim->lock, flags);
> -}
> -
> -static int fim_request_input_capture(struct imx_media_fim *fim)
> -{
> -	init_completion(&fim->icap_first_event);
> -
> -	return mxc_request_input_capture(fim->icap_channel,
> -					 fim_input_capture_handler,
> -					 fim->icap_flags, fim);
> -}
> -
> -static void fim_free_input_capture(struct imx_media_fim *fim)
> -{
> -	mxc_free_input_capture(fim->icap_channel, fim);
> -}
> -
> -#else /* CONFIG_IMX_GPT_ICAP */
> -
> -static int fim_request_input_capture(struct imx_media_fim *fim)
> -{
> -	return 0;
> -}
> -
> -static void fim_free_input_capture(struct imx_media_fim *fim)
> -{
> -}
> -
> -#endif /* CONFIG_IMX_GPT_ICAP */
> -
>  /*
>   * In case we are monitoring the first frame interval after streamon
>   * (when fim->num_skip = 0), we need a valid fim->last_ts before we
> @@ -435,14 +387,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
>  		spin_unlock_irqrestore(&fim->lock, flags);
>  
>  		if (icap_enabled(fim)) {
> -			ret = fim_request_input_capture(fim);
> -			if (ret)
> -				goto out;
>  			fim_acquire_first_ts(fim);
>  		}

As suggested by the checkpatch.pl:
WARNING: braces {} are not necessary for single statement blocks

> -	} else {
> -		if (icap_enabled(fim))
> -			fim_free_input_capture(fim);
>  	}
>  
>  	fim->stream_on = on;
> -- 
> 2.17.1
> 

Apart of this, patch looks good to me.
Thanks.

Regards,
Tommaso

-- 
Tommaso Merciai
Embedded Linux Engineer
tommaso.merciai@amarulasolutions.com
__________________________________

Amarula Solutions SRL
Via Le Canevare 30, 31100 Treviso, Veneto, IT
T. +39 042 243 5310
info@amarulasolutions.com
www.amarulasolutions.com

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Lukas Bulwahn]

On Tue, Nov 22, 2022 at 5:09 PM Tommaso Merciai
<tommaso.merciai@amarulasolutions.com> wrote:
>
> Hi Lukas,
>
> On Tue, Nov 22, 2022 at 02:23:30PM +0100, Lukas Bulwahn wrote:
> > There never was a config IMX_GPT_ICAP in the repository. So remove the code
> > conditional on this config and simplify the callers that just called empty
> > functions.
> >
> > Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> > ---
> >  drivers/staging/media/imx/imx-media-fim.c | 54 -----------------------
> >  1 file changed, 54 deletions(-)
> >
> > diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> > index 3a9182933508..19a48eb445fd 100644
> > --- a/drivers/staging/media/imx/imx-media-fim.c
> > +++ b/drivers/staging/media/imx/imx-media-fim.c
> > @@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
> >               send_fim_event(fim, error_avg);
> >  }
> >
> > -#ifdef CONFIG_IMX_GPT_ICAP
> > -/*
> > - * Input Capture method of measuring frame intervals. Not subject
> > - * to interrupt latency.
> > - */
> > -static void fim_input_capture_handler(int channel, void *dev_id,
> > -                                   ktime_t timestamp)
> > -{
> > -     struct imx_media_fim *fim = dev_id;
> > -     unsigned long flags;
> > -
> > -     spin_lock_irqsave(&fim->lock, flags);
> > -
> > -     frame_interval_monitor(fim, timestamp);
> > -
> > -     if (!completion_done(&fim->icap_first_event))
> > -             complete(&fim->icap_first_event);
> > -
> > -     spin_unlock_irqrestore(&fim->lock, flags);
> > -}
> > -
> > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > -{
> > -     init_completion(&fim->icap_first_event);
> > -
> > -     return mxc_request_input_capture(fim->icap_channel,
> > -                                      fim_input_capture_handler,
> > -                                      fim->icap_flags, fim);
> > -}
> > -
> > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > -{
> > -     mxc_free_input_capture(fim->icap_channel, fim);
> > -}
> > -
> > -#else /* CONFIG_IMX_GPT_ICAP */
> > -
> > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > -{
> > -     return 0;
> > -}
> > -
> > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > -{
> > -}
> > -
> > -#endif /* CONFIG_IMX_GPT_ICAP */
> > -
> >  /*
> >   * In case we are monitoring the first frame interval after streamon
> >   * (when fim->num_skip = 0), we need a valid fim->last_ts before we
> > @@ -435,14 +387,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
> >               spin_unlock_irqrestore(&fim->lock, flags);
> >
> >               if (icap_enabled(fim)) {
> > -                     ret = fim_request_input_capture(fim);
> > -                     if (ret)
> > -                             goto out;
> >                       fim_acquire_first_ts(fim);
> >               }
>
> As suggested by the checkpatch.pl:
> WARNING: braces {} are not necessary for single statement blocks
>
> > -     } else {
> > -             if (icap_enabled(fim))
> > -                     fim_free_input_capture(fim);
> >       }
> >
> >       fim->stream_on = on;
> > --
> > 2.17.1
> >
>

Strangely, my checkpatch invocation on next-20221116 did not show that
warning and I am unaware that I made any specific changes to
checkpatch or its configuration.

Anyway, checkpatch and you, Tommaso, are right and the patch can of
course be improved. I sent out a patch v2:

https://lore.kernel.org/all/20221123075216.28193-1-lukas.bulwahn@gmail.com/

I hope to get an Acked-by: tag from you now. Thanks.

Lukas

> Apart of this, patch looks good to me.
> Thanks.
>
> Regards,
> Tommaso
>
> --
> Tommaso Merciai
> Embedded Linux Engineer
> tommaso.merciai@amarulasolutions.com
> __________________________________
>
> Amarula Solutions SRL
> Via Le Canevare 30, 31100 Treviso, Veneto, IT
> T. +39 042 243 5310
> info@amarulasolutions.com
> www.amarulasolutions.com

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Dan Carpenter]

On Wed, Nov 23, 2022 at 08:56:06AM +0100, Lukas Bulwahn wrote:
> 
> Strangely, my checkpatch invocation on next-20221116 did not show that
> warning and I am unaware that I made any specific changes to
> checkpatch or its configuration.
> 

I think you need to apply the patch and retest with the -f option.

regards,
dan carpenter

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Lukas Bulwahn]

On Wed, Nov 23, 2022 at 8:59 AM Dan Carpenter <error27@gmail.com> wrote:
>
> On Wed, Nov 23, 2022 at 08:56:06AM +0100, Lukas Bulwahn wrote:
> >
> > Strangely, my checkpatch invocation on next-20221116 did not show that
> > warning and I am unaware that I made any specific changes to
> > checkpatch or its configuration.
> >
>
> I think you need to apply the patch and retest with the -f option.
>

Thanks, Dan, for the hint. Now, I know. I need to see if this can
become part of my usual patch submission workflow.

Lukas

> regards,
> dan carpenter
>

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Tommaso Merciai]

Hi Lukas,

On Wed, Nov 23, 2022 at 08:56:06AM +0100, Lukas Bulwahn wrote:
> On Tue, Nov 22, 2022 at 5:09 PM Tommaso Merciai
> <tommaso.merciai@amarulasolutions.com> wrote:
> >
> > Hi Lukas,
> >
> > On Tue, Nov 22, 2022 at 02:23:30PM +0100, Lukas Bulwahn wrote:
> > > There never was a config IMX_GPT_ICAP in the repository. So remove the code
> > > conditional on this config and simplify the callers that just called empty
> > > functions.
> > >
> > > Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> > > ---
> > >  drivers/staging/media/imx/imx-media-fim.c | 54 -----------------------
> > >  1 file changed, 54 deletions(-)
> > >
> > > diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> > > index 3a9182933508..19a48eb445fd 100644
> > > --- a/drivers/staging/media/imx/imx-media-fim.c
> > > +++ b/drivers/staging/media/imx/imx-media-fim.c
> > > @@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
> > >               send_fim_event(fim, error_avg);
> > >  }
> > >
> > > -#ifdef CONFIG_IMX_GPT_ICAP
> > > -/*
> > > - * Input Capture method of measuring frame intervals. Not subject
> > > - * to interrupt latency.
> > > - */
> > > -static void fim_input_capture_handler(int channel, void *dev_id,
> > > -                                   ktime_t timestamp)
> > > -{
> > > -     struct imx_media_fim *fim = dev_id;
> > > -     unsigned long flags;
> > > -
> > > -     spin_lock_irqsave(&fim->lock, flags);
> > > -
> > > -     frame_interval_monitor(fim, timestamp);
> > > -
> > > -     if (!completion_done(&fim->icap_first_event))
> > > -             complete(&fim->icap_first_event);
> > > -
> > > -     spin_unlock_irqrestore(&fim->lock, flags);
> > > -}
> > > -
> > > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > > -{
> > > -     init_completion(&fim->icap_first_event);
> > > -
> > > -     return mxc_request_input_capture(fim->icap_channel,
> > > -                                      fim_input_capture_handler,
> > > -                                      fim->icap_flags, fim);
> > > -}
> > > -
> > > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > > -{
> > > -     mxc_free_input_capture(fim->icap_channel, fim);
> > > -}
> > > -
> > > -#else /* CONFIG_IMX_GPT_ICAP */
> > > -
> > > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > > -{
> > > -     return 0;
> > > -}
> > > -
> > > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > > -{
> > > -}
> > > -
> > > -#endif /* CONFIG_IMX_GPT_ICAP */
> > > -
> > >  /*
> > >   * In case we are monitoring the first frame interval after streamon
> > >   * (when fim->num_skip = 0), we need a valid fim->last_ts before we
> > > @@ -435,14 +387,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
> > >               spin_unlock_irqrestore(&fim->lock, flags);
> > >
> > >               if (icap_enabled(fim)) {
> > > -                     ret = fim_request_input_capture(fim);
> > > -                     if (ret)
> > > -                             goto out;
> > >                       fim_acquire_first_ts(fim);
> > >               }
> >
> > As suggested by the checkpatch.pl:
> > WARNING: braces {} are not necessary for single statement blocks
> >
> > > -     } else {
> > > -             if (icap_enabled(fim))
> > > -                     fim_free_input_capture(fim);
> > >       }
> > >
> > >       fim->stream_on = on;
> > > --
> > > 2.17.1
> > >
> >
> 
> Strangely, my checkpatch invocation on next-20221116 did not show that
> warning and I am unaware that I made any specific changes to
> checkpatch or its configuration.
> 
> Anyway, checkpatch and you, Tommaso, are right and the patch can of
> course be improved. I sent out a patch v2:
> 
> https://lore.kernel.org/all/20221123075216.28193-1-lukas.bulwahn@gmail.com/
> 
> I hope to get an Acked-by: tag from you now. Thanks.

Sorry I miss the tag :)

Acked-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>

Apply the patch then run:
 scripts/checkpatch.pl -f drivers/staging/media/imx/imx-media-fim.c

Regards,
Tommaso

> 
> Lukas
> 
> > Apart of this, patch looks good to me.
> > Thanks.
> >
> > Regards,
> > Tommaso
> >
> > --
> > Tommaso Merciai
> > Embedded Linux Engineer
> > tommaso.merciai@amarulasolutions.com
> > __________________________________
> >
> > Amarula Solutions SRL
> > Via Le Canevare 30, 31100 Treviso, Veneto, IT
> > T. +39 042 243 5310
> > info@amarulasolutions.com
> > www.amarulasolutions.com

-- 
Tommaso Merciai
Embedded Linux Engineer
tommaso.merciai@amarulasolutions.com
__________________________________

Amarula Solutions SRL
Via Le Canevare 30, 31100 Treviso, Veneto, IT
T. +39 042 243 5310
info@amarulasolutions.com
www.amarulasolutions.com

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Lukas Bulwahn]

On Wed, Nov 23, 2022 at 9:21 AM Tommaso Merciai
<tommaso.merciai@amarulasolutions.com> wrote:
>
> Hi Lukas,
>
> On Wed, Nov 23, 2022 at 08:56:06AM +0100, Lukas Bulwahn wrote:
> > On Tue, Nov 22, 2022 at 5:09 PM Tommaso Merciai
> > <tommaso.merciai@amarulasolutions.com> wrote:
> > >
> > > Hi Lukas,
> > >
> > > On Tue, Nov 22, 2022 at 02:23:30PM +0100, Lukas Bulwahn wrote:
> > > > There never was a config IMX_GPT_ICAP in the repository. So remove the code
> > > > conditional on this config and simplify the callers that just called empty
> > > > functions.
> > > >
> > > > Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> > > > ---
> > > >  drivers/staging/media/imx/imx-media-fim.c | 54 -----------------------
> > > >  1 file changed, 54 deletions(-)
> > > >
> > > > diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c
> > > > index 3a9182933508..19a48eb445fd 100644
> > > > --- a/drivers/staging/media/imx/imx-media-fim.c
> > > > +++ b/drivers/staging/media/imx/imx-media-fim.c
> > > > @@ -187,54 +187,6 @@ static void frame_interval_monitor(struct imx_media_fim *fim,
> > > >               send_fim_event(fim, error_avg);
> > > >  }
> > > >
> > > > -#ifdef CONFIG_IMX_GPT_ICAP
> > > > -/*
> > > > - * Input Capture method of measuring frame intervals. Not subject
> > > > - * to interrupt latency.
> > > > - */
> > > > -static void fim_input_capture_handler(int channel, void *dev_id,
> > > > -                                   ktime_t timestamp)
> > > > -{
> > > > -     struct imx_media_fim *fim = dev_id;
> > > > -     unsigned long flags;
> > > > -
> > > > -     spin_lock_irqsave(&fim->lock, flags);
> > > > -
> > > > -     frame_interval_monitor(fim, timestamp);
> > > > -
> > > > -     if (!completion_done(&fim->icap_first_event))
> > > > -             complete(&fim->icap_first_event);
> > > > -
> > > > -     spin_unlock_irqrestore(&fim->lock, flags);
> > > > -}
> > > > -
> > > > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > > > -{
> > > > -     init_completion(&fim->icap_first_event);
> > > > -
> > > > -     return mxc_request_input_capture(fim->icap_channel,
> > > > -                                      fim_input_capture_handler,
> > > > -                                      fim->icap_flags, fim);
> > > > -}
> > > > -
> > > > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > > > -{
> > > > -     mxc_free_input_capture(fim->icap_channel, fim);
> > > > -}
> > > > -
> > > > -#else /* CONFIG_IMX_GPT_ICAP */
> > > > -
> > > > -static int fim_request_input_capture(struct imx_media_fim *fim)
> > > > -{
> > > > -     return 0;
> > > > -}
> > > > -
> > > > -static void fim_free_input_capture(struct imx_media_fim *fim)
> > > > -{
> > > > -}
> > > > -
> > > > -#endif /* CONFIG_IMX_GPT_ICAP */
> > > > -
> > > >  /*
> > > >   * In case we are monitoring the first frame interval after streamon
> > > >   * (when fim->num_skip = 0), we need a valid fim->last_ts before we
> > > > @@ -435,14 +387,8 @@ int imx_media_fim_set_stream(struct imx_media_fim *fim,
> > > >               spin_unlock_irqrestore(&fim->lock, flags);
> > > >
> > > >               if (icap_enabled(fim)) {
> > > > -                     ret = fim_request_input_capture(fim);
> > > > -                     if (ret)
> > > > -                             goto out;
> > > >                       fim_acquire_first_ts(fim);
> > > >               }
> > >
> > > As suggested by the checkpatch.pl:
> > > WARNING: braces {} are not necessary for single statement blocks
> > >
> > > > -     } else {
> > > > -             if (icap_enabled(fim))
> > > > -                     fim_free_input_capture(fim);
> > > >       }
> > > >
> > > >       fim->stream_on = on;
> > > > --
> > > > 2.17.1
> > > >
> > >
> >
> > Strangely, my checkpatch invocation on next-20221116 did not show that
> > warning and I am unaware that I made any specific changes to
> > checkpatch or its configuration.
> >
> > Anyway, checkpatch and you, Tommaso, are right and the patch can of
> > course be improved. I sent out a patch v2:
> >
> > https://lore.kernel.org/all/20221123075216.28193-1-lukas.bulwahn@gmail.com/
> >
> > I hope to get an Acked-by: tag from you now. Thanks.
>
> Sorry I miss the tag :)
>
> Acked-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
>
> Apply the patch then run:
>  scripts/checkpatch.pl -f drivers/staging/media/imx/imx-media-fim.c
>

I see. I usually just run checkpatch.pl on the patch, but do not apply
the patch and run checkpatch on the file. That explains the difference
of observations. Good to know.

Lukas

> Regards,
> Tommaso
>
> >
> > Lukas
> >
> > > Apart of this, patch looks good to me.
> > > Thanks.
> > >
> > > Regards,
> > > Tommaso
> > >
> > > --
> > > Tommaso Merciai
> > > Embedded Linux Engineer
> > > tommaso.merciai@amarulasolutions.com
> > > __________________________________
> > >
> > > Amarula Solutions SRL
> > > Via Le Canevare 30, 31100 Treviso, Veneto, IT
> > > T. +39 042 243 5310
> > > info@amarulasolutions.com
> > > www.amarulasolutions.com
>
> --
> Tommaso Merciai
> Embedded Linux Engineer
> tommaso.merciai@amarulasolutions.com
> __________________________________
>
> Amarula Solutions SRL
> Via Le Canevare 30, 31100 Treviso, Veneto, IT
> T. +39 042 243 5310
> info@amarulasolutions.com
> www.amarulasolutions.com

Re: [PATCH] media: imx: remove code for non-existing config IMX_GPT_ICAP

[Deepak R Varma]

On Wed, Nov 23, 2022 at 09:24:42AM +0100, Lukas Bulwahn wrote:
> On Wed, Nov 23, 2022 at 9:21 AM Tommaso Merciai
> <tommaso.merciai@amarulasolutions.com> wrote:
> >
>
> I see. I usually just run checkpatch.pl on the patch, but do not apply
> the patch and run checkpatch on the file. That explains the difference
> of observations. Good to know.

There is a section "Git post-commit hooks" on this [1] web-link that is useful
to configure auto-checkpatch verification at the time of commit.

Hope this is useful.


[1] https://kernelnewbies.org/Outreachyfirstpatch

./drv

>
> Lukas