linux-kernel - Re: [PATCH v2 04/11] gpio: Ensure struct gpio_chip for gpiochip_setup

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Message-ID: <CAMRc=McJjJNsrG7ZfWYQTBb2-8CgV4OVqZKhSFJDw=cTB0r=dA@mail.gmail.com>
Date: Wed, 4 Feb 2026 04:36:00 -0600
From: Bartosz Golaszewski <brgl@...nel.org>
To: Tzung-Bi Shih <tzungbi@...nel.org>
Cc: Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>, 
	Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
	Wolfram Sang <wsa+renesas@...g-engineering.com>, Jason Gunthorpe <jgg@...dia.com>, 
	Johan Hovold <johan@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, chrome-platform@...ts.linux.dev, 
	Dan Williams <dan.j.williams@...el.com>, linux-gpio@...r.kernel.org, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Danilo Krummrich <dakr@...nel.org>, Bartosz Golaszewski <brgl@...ev.pl>, Linus Walleij <linusw@...nel.org>
Subject: Re: [PATCH v2 04/11] gpio: Ensure struct gpio_chip for gpiochip_setup_dev()

On Tue, 3 Feb 2026 07:10:51 +0100, Tzung-Bi Shih <tzungbi@...nel.org> said:
> Ensure struct gpio_chip for gpiochip_setup_dev().  This eliminates a few
> checks for struct gpio_chip.
>
> Signed-off-by: Tzung-Bi Shih <tzungbi@...nel.org>

Same comment as patch 3. I don't like seeing both gpio_chip and gpio_device
being passed to the same function. If you already dereferenced gpio_chip, pass
it on its own and get the address of the associated devices from its member
pointer.

Bartosz