linux-kernel - Re: [PATCH 1/2] gpio: provide gpiod_is

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Message-ID: <8377e050-59d2-4de5-8fd5-bbc26bb72b71@sirena.org.uk>
Date: Mon, 7 Apr 2025 18:11:32 +0100
From: Mark Brown <broonie@...nel.org>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Liam Girdwood <lgirdwood@...il.com>, linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 1/2] gpio: provide gpiod_is_equal()

On Mon, Apr 07, 2025 at 09:08:14AM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> There are users in the kernel that directly compare raw GPIO descriptor
> pointers in order to determine whether they refer to the same physical
> GPIO pin. This accidentally works like this but is not guaranteed by any
> API contract. Let's provide a comparator function that hides the actual
> logic.

Reviewed-by: Mark Brown <broonie@...nel.org>

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