linux-kernel - Re: [PATCH 15/23] gpio: mockup: use dynamic device IDs

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Message-ID: <CAMRc=MeG8xuB0GNbMLi6+QZTphSN==77Hsw1fjVNU_+Z=Ky2qQ@mail.gmail.com>
Date:   Mon, 7 Sep 2020 13:04:29 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Jonathan Corbet <corbet@....net>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Kent Gibson <warthog618@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-doc <linux-doc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-acpi@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH 15/23] gpio: mockup: use dynamic device IDs

On Fri, Sep 4, 2020 at 6:49 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Fri, Sep 04, 2020 at 05:45:39PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >
> > We're currently creating chips at module init time only so using a
> > static index for dummy devices is fine. We want to support dynamically
> > created chips however so we need to switch to dynamic device IDs.
>
> It misses ida_destroy().
>

No, we always call ida_free() for separate IDs when removing devices
and we remove all devices at module exit so no need to call
ida_destroy().

> What about XArray API?
>

Answered that somewhere - xarray is already used internally by IDA.

Bart