linux-kernel - [PATCH] net/bluetooth: Change to use DEFINE_SHOW

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Date:   Mon,  5 Nov 2018 09:56:19 -0500
From:   Yangtao Li <tiny.windzz@...il.com>
To:     marcel@...tmann.org, johan.hedberg@...il.com, davem@...emloft.net,
        keescook@...omium.org, gustavo@...eddedor.com, dvlasenk@...hat.com
Cc:     linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yangtao Li <tiny.windzz@...il.com>
Subject: [PATCH] net/bluetooth: Change to use DEFINE_SHOW_ATTRIBUTE macro

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 net/bluetooth/l2cap_core.c  | 12 +-----------
 net/bluetooth/rfcomm/core.c | 12 +-----------
 net/bluetooth/rfcomm/sock.c | 12 +-----------
 net/bluetooth/sco.c         | 12 +-----------
 4 files changed, 4 insertions(+), 44 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index d17a4736e47c..38d92ced5fb5 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -7615,17 +7615,7 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p)
 	return 0;
 }
 
-static int l2cap_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, l2cap_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations l2cap_debugfs_fops = {
-	.open		= l2cap_debugfs_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(l2cap_debugfs);
 
 static struct dentry *l2cap_debugfs;
 
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index b98225d65e87..1a635df80643 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -2166,17 +2166,7 @@ static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
 	return 0;
 }
 
-static int rfcomm_dlc_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, rfcomm_dlc_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations rfcomm_dlc_debugfs_fops = {
-	.open		= rfcomm_dlc_debugfs_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rfcomm_dlc_debugfs);
 
 static struct dentry *rfcomm_dlc_debugfs;
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index d606e9212291..aa0db1d1bd9b 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1020,17 +1020,7 @@ static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p)
 	return 0;
 }
 
-static int rfcomm_sock_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, rfcomm_sock_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations rfcomm_sock_debugfs_fops = {
-	.open		= rfcomm_sock_debugfs_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rfcomm_sock_debugfs);
 
 static struct dentry *rfcomm_sock_debugfs;
 
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 8f0f9279eac9..529b38996d8b 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1173,17 +1173,7 @@ static int sco_debugfs_show(struct seq_file *f, void *p)
 	return 0;
 }
 
-static int sco_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, sco_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations sco_debugfs_fops = {
-	.open		= sco_debugfs_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(sco_debugfs);
 
 static struct dentry *sco_debugfs;
 
-- 
2.17.0