lkml.org 
[lkml]   [2020]   [Sep]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] gpiolib: switch to simpler IDA interface
Date
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 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
\
 
 \ /
  Last update: 2020-09-08 21:39    [W:0.066 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site