spi: Drop warning from spi_stop_queue()

Both callers of spi_stop_queue() (i.e. spi_destroy_queue() and
spi_controller_suspend()) already emit an error message if
spi_stop_queue() fails. Another warning in this case isn't helpful, so
drop it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/spi/spi.c | 4 ----
 1 file changed, 4 deletions(-)


base-commit: dfa449a58323de195773cf928d99db4130702bf7

On Sat, 16 Sep 2023 18:12:35 +0200, Uwe Kleine-König wrote:
> Both callers of spi_stop_queue() (i.e. spi_destroy_queue() and
> spi_controller_suspend()) already emit an error message if
> spi_stop_queue() fails. Another warning in this case isn't helpful, so
> drop it.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: Drop warning from spi_stop_queue()
      commit: 9386c958beb77aee0d95d5fd0c79babd06a86c7d

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

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and review of the tree, please engage with people reporting problems and
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Thanks,
Mark

Hi Uwe,

On Sat, Sep 16, 2023 at 6:14 PM Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:
> Both callers of spi_stop_queue() (i.e. spi_destroy_queue() and
> spi_controller_suspend()) already emit an error message if
> spi_stop_queue() fails. Another warning in this case isn't helpful, so
> drop it.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Thanks for your patch, which is now commit 9386c958beb77aee ("spi:
Drop warning from spi_stop_queue()") in spi/for-next.

> --- a/drivers/spi/spi.c
> +++ b/drivers/spi/spi.c
> @@ -2093,10 +2093,6 @@ static int spi_stop_queue(struct spi_controller *ctlr)
>
>         spin_unlock_irqrestore(&ctlr->queue_lock, flags);
>
> -       if (ret) {
> -               dev_warn(&ctlr->dev, "could not stop message queue\n");
> -               return ret;
> -       }
>         return ret;
>  }

Why did you decide to remove the printed warning from the callee,
instead of the multiple printed warnings from the callers?
The alternative would have reduced kernel size a bit more.

Gr{oetje,eeting}s,

                        Geert

On Tue, Sep 19, 2023 at 09:26:42AM +0200, Geert Uytterhoeven wrote:
> Hi Uwe,
> 
> On Sat, Sep 16, 2023 at 6:14 PM Uwe Kleine-König
> <u.kleine-koenig@pengutronix.de> wrote:
> > Both callers of spi_stop_queue() (i.e. spi_destroy_queue() and
> > spi_controller_suspend()) already emit an error message if
> > spi_stop_queue() fails. Another warning in this case isn't helpful, so
> > drop it.
> >
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> 
> Thanks for your patch, which is now commit 9386c958beb77aee ("spi:
> Drop warning from spi_stop_queue()") in spi/for-next.
> 
> > --- a/drivers/spi/spi.c
> > +++ b/drivers/spi/spi.c
> > @@ -2093,10 +2093,6 @@ static int spi_stop_queue(struct spi_controller *ctlr)
> >
> >         spin_unlock_irqrestore(&ctlr->queue_lock, flags);
> >
> > -       if (ret) {
> > -               dev_warn(&ctlr->dev, "could not stop message queue\n");
> > -               return ret;
> > -       }
> >         return ret;
> >  }
> 
> Why did you decide to remove the printed warning from the callee,
> instead of the multiple printed warnings from the callers?
> The alternative would have reduced kernel size a bit more.

The callers used dev_err, the removed message is a dev_warn. So I kept
the messages with the higher prio.

Also the two error messages are more specific:

	spi_destroy_queue()
	-> dev_err(&ctlr->dev, "problem destroying queue\n");
	spi_controller_suspend()
	-> dev_err(&ctlr->dev, "queue stop failed\n");

But I didn't think about size reduction, if you want to improve further,
you're welcome.

Best regards
Uwe