linux-kernel - Re: [PATCH] gpiolib: cdev: add fdinfo output for line request file descriptors

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Message-ID: <Yyn8qABbRDGYAnnv@smile.fi.intel.com>
Date:   Tue, 20 Sep 2022 20:47:20 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Kent Gibson <warthog618@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpiolib: cdev: add fdinfo output for line request file
 descriptors

On Tue, Sep 20, 2022 at 08:29:29PM +0300, Andy Shevchenko wrote:
> On Tue, Sep 20, 2022 at 08:19:25PM +0300, Andy Shevchenko wrote:
> > On Tue, Sep 20, 2022 at 03:54:35PM +0200, Bartosz Golaszewski wrote:

...

> > Also don't forget that sizes over PAGE_SIZE in sysfs sometimes problematic and
> > racy.(the commit 888be6067b97 ("ACPI: sysfs: Fix a buffer overrun problem with
> > description_show()") for the reference).
> 
> This is not the commit I wanted to point to... But suddenly can't find easily
> the one I remembered happened in the kernel.

Found the one:
00ee22c28915 ("PM / wakeup: Use seq_open() to show wakeup stats")

-- 
With Best Regards,
Andy Shevchenko