linux-kernel - [PATCH] timekeeping: convert to DEFINE_SHOW

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Date:   Tue, 11 Dec 2018 11:37:44 -0500
From:   Yangtao Li <tiny.windzz@...il.com>
To:     john.stultz@...aro.org, tglx@...utronix.de, sboyd@...nel.org
Cc:     linux-kernel@...r.kernel.org, Yangtao Li <tiny.windzz@...il.com>
Subject: [PATCH] timekeeping: convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 kernel/time/timekeeping_debug.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/kernel/time/timekeeping_debug.c b/kernel/time/timekeeping_debug.c
index 238e4be60229..a937300df452 100644
--- a/kernel/time/timekeeping_debug.c
+++ b/kernel/time/timekeeping_debug.c
@@ -28,7 +28,7 @@
 
 static unsigned int sleep_time_bin[NUM_BINS] = {0};
 
-static int tk_debug_show_sleep_time(struct seq_file *s, void *data)
+static int tk_debug_sleep_time_show(struct seq_file *s, void *data)
 {
 	unsigned int bin;
 	seq_puts(s, "      time (secs)        count\n");
@@ -42,18 +42,7 @@ static int tk_debug_show_sleep_time(struct seq_file *s, void *data)
 	}
 	return 0;
 }
-
-static int tk_debug_sleep_time_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, tk_debug_show_sleep_time, NULL);
-}
-
-static const struct file_operations tk_debug_sleep_time_fops = {
-	.open		= tk_debug_sleep_time_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(tk_debug_sleep_time);
 
 static int __init tk_debug_sleep_time_init(void)
 {
-- 
2.17.0