linux-kernel - [PATCH 1/1] rtc: x1205: use DEVICE_ATTR

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Message-ID: <20210602063828.10958-1-thunder.leizhen@huawei.com>
Date:   Wed, 2 Jun 2021 14:38:28 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi <linux-scsi@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH 1/1] rtc: x1205: use DEVICE_ATTR_RO macro

Use DEVICE_ATTR_RO macro helper instead of plain DEVICE_ATTR, which makes
the code a bit shorter and easier to read.

Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
---
 drivers/rtc/rtc-x1205.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index d1d5a44d9122ad9..351e4725a7a5439 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -566,8 +566,8 @@ static const struct rtc_class_ops x1205_rtc_ops = {
 	.set_alarm	= x1205_rtc_set_alarm,
 };
 
-static ssize_t x1205_sysfs_show_atrim(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static ssize_t atrim_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
 {
 	int err, atrim;
 
@@ -577,10 +577,10 @@ static ssize_t x1205_sysfs_show_atrim(struct device *dev,
 
 	return sprintf(buf, "%d.%02d pF\n", atrim / 1000, atrim % 1000);
 }
-static DEVICE_ATTR(atrim, S_IRUGO, x1205_sysfs_show_atrim, NULL);
+static DEVICE_ATTR_RO(atrim);
 
-static ssize_t x1205_sysfs_show_dtrim(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static ssize_t dtrim_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
 {
 	int err, dtrim;
 
@@ -590,7 +590,7 @@ static ssize_t x1205_sysfs_show_dtrim(struct device *dev,
 
 	return sprintf(buf, "%d ppm\n", dtrim);
 }
-static DEVICE_ATTR(dtrim, S_IRUGO, x1205_sysfs_show_dtrim, NULL);
+static DEVICE_ATTR_RO(dtrim);
 
 static int x1205_sysfs_register(struct device *dev)
 {
-- 
2.26.0.106.g9fadedd