From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Kent Gibson <warthog618@gmail.com>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: Re: [PATCH] gpiolib: switch to simpler IDA interface
Date: Tue, 8 Sep 2020 16:47:33 +0300 [thread overview]
Message-ID: <20200908134733.GA1891694@smile.fi.intel.com> (raw)
In-Reply-To: <20200908131225.10870-1-brgl@bgdev.pl>
On Tue, Sep 08, 2020 at 03:12:25PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> We don't need to specify any ranges when allocating IDs so we can switch
> to ida_alloc() and ida_free() instead of the ida_simple_ counterparts.
>
> ida_simple_get(ida, 0, 0, gfp) is equivalent to
> ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to
> ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID
> larger than INT_MAX.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
> drivers/gpio/gpiolib.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> index 80137c1b3cdc..97f76334ec7e 100644
> --- a/drivers/gpio/gpiolib.c
> +++ b/drivers/gpio/gpiolib.c
> @@ -426,7 +426,7 @@ static void gpiodevice_release(struct device *dev)
> struct gpio_device *gdev = dev_get_drvdata(dev);
>
> list_del(&gdev->list);
> - ida_simple_remove(&gpio_ida, gdev->id);
> + ida_free(&gpio_ida, gdev->id);
> kfree_const(gdev->label);
> kfree(gdev->descs);
> kfree(gdev);
> @@ -537,7 +537,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
> gc->of_node = gdev->dev.of_node;
> #endif
>
> - gdev->id = ida_simple_get(&gpio_ida, 0, 0, GFP_KERNEL);
> + gdev->id = ida_alloc(&gpio_ida, GFP_KERNEL);
> if (gdev->id < 0) {
> ret = gdev->id;
> goto err_free_gdev;
> @@ -705,7 +705,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
> err_free_descs:
> kfree(gdev->descs);
> err_free_ida:
> - ida_simple_remove(&gpio_ida, gdev->id);
> + ida_free(&gpio_ida, gdev->id);
> err_free_gdev:
> /* failures here can mean systems won't boot... */
> pr_err("%s: GPIOs %d..%d (%s) failed to register, %d\n", __func__,
> --
> 2.26.1
>
--
With Best Regards,
Andy Shevchenko
prev parent reply other threads:[~2020-09-08 17:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-08 13:12 [PATCH] gpiolib: switch to simpler IDA interface Bartosz Golaszewski
2020-09-08 13:47 ` Andy Shevchenko [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200908134733.GA1891694@smile.fi.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=bgolaszewski@baylibre.com \
--cc=brgl@bgdev.pl \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=warthog618@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox