linux-kernel - [tip: timers/core] clockevents: Use DEVICE_ATTR

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Date:   Mon, 31 May 2021 15:07:00 -0000
From:   "tip-bot2 for YueHaibing" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     YueHaibing <yuehaibing@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: timers/core] clockevents: Use DEVICE_ATTR_[RO|WO] macros

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     1fa98d96ea0ff6c8770eeba90417aab4b4e07f52
Gitweb:        https://git.kernel.org/tip/1fa98d96ea0ff6c8770eeba90417aab4b4e07f52
Author:        YueHaibing <yuehaibing@...wei.com>
AuthorDate:    Sun, 23 May 2021 14:58:25 +08:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 31 May 2021 17:04:42 +02:00

clockevents: Use DEVICE_ATTR_[RO|WO] macros

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@...wei.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/r/20210523065825.19684-1-yuehaibing@huawei.com

---
 kernel/time/clockevents.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index f549022..0056d2b 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -668,9 +668,9 @@ 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,
-					   struct device_attribute *attr,
-					   char *buf)
+static ssize_t current_device_show(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buf)
 {
 	struct tick_device *td;
 	ssize_t count = 0;
@@ -682,12 +682,12 @@ 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,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
+static ssize_t unbind_device_store(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
 {
 	char name[CS_NAME_LEN];
 	ssize_t ret = sysfs_get_uname(buf, name, 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 = {