From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Linus Walleij <linus.walleij@linaro.org>,
Jonathan Corbet <corbet@lwn.net>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Kent Gibson <warthog618@gmail.com>
Cc: linux-gpio@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH 06/23] gpiolib: switch to simpler IDA interface
Date: Fri, 4 Sep 2020 17:45:30 +0200 [thread overview]
Message-ID: <20200904154547.3836-7-brgl@bgdev.pl> (raw)
In-Reply-To: <20200904154547.3836-1-brgl@bgdev.pl>
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.
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 15c99cf560ee..591777bc2285 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -471,7 +471,7 @@ 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);
@@ -582,7 +582,7 @@ 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;
@@ -753,7 +753,7 @@ 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
next prev parent reply other threads:[~2020-09-04 15:47 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 15:45 [PATCH 00/23] gpio: mockup: support dynamically created and removed chips Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 01/23] lib: cmdline: export next_arg() Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 02/23] lib: string_helpers: provide kfree_strarray() Bartosz Golaszewski
2020-09-04 16:33 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 03/23] lib: uaccess: provide getline_from_user() Bartosz Golaszewski
2020-09-04 16:35 ` Andy Shevchenko
2020-09-07 10:02 ` Bartosz Golaszewski
2020-09-07 10:18 ` Andy Shevchenko
2020-09-07 10:28 ` Bartosz Golaszewski
2020-09-07 11:45 ` Andy Shevchenko
2020-09-07 11:57 ` Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 04/23] gpiolib: generalize devprop_gpiochip_set_names() for device properties Bartosz Golaszewski
2020-09-04 16:38 ` Andy Shevchenko
2020-09-07 10:56 ` Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 05/23] gpiolib: unexport devprop_gpiochip_set_names() Bartosz Golaszewski
2020-09-04 16:40 ` Andy Shevchenko
2020-09-07 10:53 ` Bartosz Golaszewski
2020-09-04 15:45 ` Bartosz Golaszewski [this message]
2020-09-04 16:41 ` [PATCH 06/23] gpiolib: switch to simpler IDA interface Andy Shevchenko
2020-09-07 10:50 ` Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 07/23] gpio: mockup: drop unneeded includes Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 08/23] gpio: mockup: use pr_fmt() Bartosz Golaszewski
2020-09-04 16:29 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 09/23] gpio: mockup: use KBUILD_MODNAME Bartosz Golaszewski
2020-09-04 16:30 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 10/23] gpio: mockup: fix resource leak in error path Bartosz Golaszewski
2020-09-04 17:00 ` Andy Shevchenko
2020-09-07 11:04 ` Bartosz Golaszewski
2020-09-07 11:47 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 11/23] gpio: mockup: remove the limit on number of dummy chips Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 12/23] gpio: mockup: define a constant for chip label size Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 13/23] gpio: mockup: pass the chip label as device property Bartosz Golaszewski
2020-09-04 16:48 ` Andy Shevchenko
2020-09-07 11:01 ` Bartosz Golaszewski
2020-09-07 11:48 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 14/23] gpio: mockup: use the generic 'gpio-line-names' property Bartosz Golaszewski
2020-09-04 16:46 ` Andy Shevchenko
2020-09-07 10:58 ` Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 15/23] gpio: mockup: use dynamic device IDs Bartosz Golaszewski
2020-09-04 16:49 ` Andy Shevchenko
2020-09-07 11:04 ` Bartosz Golaszewski
2020-09-07 11:50 ` Andy Shevchenko
2020-09-07 11:59 ` Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 16/23] gpio: mockup: refactor the module init function Bartosz Golaszewski
2020-09-04 16:50 ` Andy Shevchenko
2020-09-07 11:05 ` Bartosz Golaszewski
2020-09-07 11:51 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 17/23] gpio: mockup: rename and move around debugfs callbacks Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 18/23] gpio: mockup: require debugfs to build Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 19/23] gpio: mockup: add a symlink for the per-chip debugfs directory Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 20/23] gpio: mockup: add a lock for dummy device list Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 21/23] gpio: mockup: provide a way to delete dummy chips Bartosz Golaszewski
2020-09-04 16:56 ` Andy Shevchenko
2020-09-04 15:45 ` [PATCH 22/23] gpio: mockup: provide a way to create new " Bartosz Golaszewski
2020-09-04 15:45 ` [PATCH 23/23] Documentation: gpio: add documentation for gpio-mockup Bartosz Golaszewski
2020-09-04 16:58 ` Andy Shevchenko
2020-09-05 3:15 ` Randy Dunlap
2020-09-07 9:59 ` Andy Shevchenko
2020-09-07 10:26 ` Bartosz Golaszewski
2020-09-07 11:53 ` Andy Shevchenko
2020-09-07 12:06 ` Bartosz Golaszewski
2020-09-07 12:22 ` Greg Kroah-Hartman
2020-09-07 13:49 ` Bartosz Golaszewski
2020-09-07 14:08 ` Andy Shevchenko
2020-09-07 15:14 ` Bartosz Golaszewski
2020-09-07 15:23 ` Geert Uytterhoeven
2020-09-07 16:08 ` Bartosz Golaszewski
2020-09-08 17:03 ` Bartosz Golaszewski
2020-09-11 12:56 ` Greg Kroah-Hartman
2020-09-11 13:07 ` Bartosz Golaszewski
2020-09-07 12:38 ` Andy Shevchenko
2020-09-07 12:57 ` Bartosz Golaszewski
2020-09-07 13:52 ` Andy Shevchenko
2020-09-07 10:45 ` Bartosz Golaszewski
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