linux-kernel - Re: [PATCH v2 1/1] gpiolib: Fix debug messaging in gpiod_find_and

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Date: Thu, 28 Mar 2024 23:00:19 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Bartosz Golaszewski <brgl@...ev.pl>, 
	Stephen Boyd <swboyd@...omium.org>, Ferry Toth <ftoth@...londelft.nl>, 
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH v2 1/1] gpiolib: Fix debug messaging in gpiod_find_and_request()

On Wed, Mar 20, 2024 at 5:59 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:

> When consolidating GPIO lookups in ACPI code, the debug messaging
> had been reworked that the user may see
>
>   [   13.401147] (NULL device *): using ACPI '\_SB.LEDS.led-0' for '(null)' GPIO lookup
>   [   13.401378] gpio gpiochip0: Persistence not supported for GPIO 40
>   [   13.401402] gpio-40 (?): no flags found for (null)
>
> instead of
>
>   [   14.182962] gpio gpiochip0: Persistence not supported for GPIO 40
>   [   14.182994] gpio-40 (?): no flags found for gpios
>
> The '(null)' parts are less informative and likely scare the users.
> Replace them by '(default)' which can point out to the default connection
> IDs, such as 'gpios'.
>
> While at it, amend other places where con_id is used in the messages.
>
> Reported-by: Ferry Toth <ftoth@...londelft.nl>
> Fixes: 8eb1f71e7acc ("gpiolib: consolidate GPIO lookups")
> Suggested-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

LGTM
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij