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clockevents: Use DEVICE_ATTR_[RO|WO] macros

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Use the DEVICE_ATTR_[RO|WO] helpers instead of plain DEVICE_ATTR, which
makes the code a bit shorter and easier to read.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210523065825.19684-1-yuehaibing@huawei.com
This commit is contained in:
YueHaibing 2021-05-23 14:58:25 +08:00 committed by Thomas Gleixner
parent 8124c8a6b3
commit 1fa98d96ea
1 changed files with 8 additions and 8 deletions
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8
kernel/time/clockevents.c
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@ -668,7 +668,7 @@ static struct bus_type clockevents_subsys = {
static DEFINE_PER_CPU(struct device, tick_percpu_dev);
static struct tick_device *tick_get_tick_dev(struct device *dev);
static ssize_t sysfs_show_current_tick_dev(struct device *dev,
static ssize_t current_device_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
@ -682,10 +682,10 @@ static ssize_t sysfs_show_current_tick_dev(struct device *dev,
raw_spin_unlock_irq(&clockevents_lock);
return count;
}
static DEVICE_ATTR(current_device, 0444, sysfs_show_current_tick_dev, NULL);
static DEVICE_ATTR_RO(current_device);
/* We don't support the abomination of removable broadcast devices */
static ssize_t sysfs_unbind_tick_dev(struct device *dev,
static ssize_t unbind_device_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
@ -714,7 +714,7 @@ static ssize_t sysfs_unbind_tick_dev(struct device *dev,
mutex_unlock(&clockevents_mutex);
return ret ? ret : count;
}
static DEVICE_ATTR(unbind_device, 0200, NULL, sysfs_unbind_tick_dev);
static DEVICE_ATTR_WO(unbind_device);
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
static struct device tick_bc_dev = {