linux-kernel - [PATCH v1 3/4] platform/x86: ideapad-laptop: Re-use DEFINE_SHOW

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Date:   Mon, 22 Jan 2018 18:05:45 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Darren Hart <dvhart@...radead.org>,
        platform-driver-x86@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Lee Jones <lee.jones@...aro.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 3/4] platform/x86: ideapad-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro

...instead of open coding file operations followed by custom ->open()
callbacks per each attribute.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/platform/x86/ideapad-laptop.c | 28 ++--------------------------
 1 file changed, 2 insertions(+), 26 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 5ab638d4d243..7e9e9bf78f1d 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -284,19 +284,7 @@ static int debugfs_status_show(struct seq_file *s, void *data)
 
 	return 0;
 }
-
-static int debugfs_status_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, debugfs_status_show, inode->i_private);
-}
-
-static const struct file_operations debugfs_status_fops = {
-	.owner = THIS_MODULE,
-	.open = debugfs_status_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(debugfs_status);
 
 static int debugfs_cfg_show(struct seq_file *s, void *data)
 {
@@ -337,19 +325,7 @@ static int debugfs_cfg_show(struct seq_file *s, void *data)
 	}
 	return 0;
 }
-
-static int debugfs_cfg_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, debugfs_cfg_show, inode->i_private);
-}
-
-static const struct file_operations debugfs_cfg_fops = {
-	.owner = THIS_MODULE,
-	.open = debugfs_cfg_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(debugfs_cfg);
 
 static int ideapad_debugfs_init(struct ideapad_private *priv)
 {
-- 
2.15.1