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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Fri, 5 Mar 2021 09:18:30 +0100
Message-ID: <CAMuHMdXRK5=w1-Z=EbM60Sf2bLY1EiVaxbZjMP+XyQ3g7nBpZw@mail.gmail.com>
Subject: Re: [PATCH v2 08/12] drivers: export device_is_bound()
To:     Bartosz Golaszewski <brgl@bgdev.pl>
Cc:     Joel Becker <jlbec@evilplan.org>, Christoph Hellwig <hch@lst.de>,
        Shuah Khan <shuah@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        =?UTF-8?Q?Uwe_Kleine=2DK=C3=B6nig?= 
        <u.kleine-koenig@pengutronix.de>,
        Kent Gibson <warthog618@gmail.com>,
        Jonathan Corbet <corbet@lwn.net>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Greg KH <gregkh@linuxfoundation.org>
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CC Greg

On Thu, Mar 4, 2021 at 11:30 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> Export the symbol for device_is_bound() so that we can use it in gpio-sim
> to check if the simulated GPIO chip is bound before fetching its driver
> data from configfs callbacks in order to retrieve the name of the GPIO
> chip device.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
>  drivers/base/dd.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index 9179825ff646..c62c02e3490a 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -353,6 +353,7 @@ bool device_is_bound(struct device *dev)
>  {
>         return dev->p && klist_node_attached(&dev->p->knode_driver);
>  }
> +EXPORT_SYMBOL_GPL(device_is_bound);
>
>  static void driver_bound(struct device *dev)
>  {
> --
> 2.29.1