PM / sleep: convert to DEFINE_SHOW_ATTRIBUTE

TinyWindzz · rafaeljw · commit 943a10f85265 · 2018-12-12T23:23:58.000+01:00
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li &lt;tiny.windzz@gmail.com&gt;
Acked-by: Pavel Machek &lt;pavel@ucw.cz&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
diff --git a/kernel/power/main.c b/kernel/power/main.c
@@ -318,23 +318,12 @@ static int suspend_stats_show(struct seq_file *s, void *unused)
 
 	return 0;
 }
-
-static int suspend_stats_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, suspend_stats_show, NULL);
-}
-
-static const struct file_operations suspend_stats_operations = {
-	.open           = suspend_stats_open,
-	.read           = seq_read,
-	.llseek         = seq_lseek,
-	.release        = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(suspend_stats);
 
 static int __init pm_debugfs_init(void)
 {
 	debugfs_create_file("suspend_stats", S_IFREG | S_IRUGO,
-			NULL, NULL, &suspend_stats_operations);
+			NULL, NULL, &suspend_stats_fops);
 	return 0;
 }
 
