linux-kernel - Re: [PATCH v2 2/2] gpiolib: use a mutex to protect the list of GPIO devices

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Message-ID: <CAMRc=MfV7uf-K-+aGN8QWrGBDjvvtcsimWDTXEBZMHXrmFiSgQ@mail.gmail.com>
Date:   Thu, 14 Dec 2023 13:26:24 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kent Gibson <warthog618@...il.com>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v2 2/2] gpiolib: use a mutex to protect the list of GPIO devices

On Fri, Dec 8, 2023 at 11:20 AM Bartosz Golaszewski <brgl@...ev.pl> wrote:
>
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
>
> The global list of GPIO devices is never modified or accessed from
> atomic context so it's fine to protect it using a mutex. Add a new
> global lock dedicated to the gpio_devices list and use it whenever
> accessing or modifying it.
>
> While at it: fold the sysfs registering of existing devices into
> gpiolib.c and make gpio_devices static within its compilation unit.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

If there are no objections, I'll apply it tomorrow.

Bart