linux-kernel - [PATCH -next] gpu: host1x: Convert to DEFINE_SHOW

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Date:   Thu, 16 Jul 2020 17:03:23 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thierry Reding <thierry.reding@...il.com>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] gpu: host1x: Convert to DEFINE_SHOW_ATTRIBUTE

From: Yongqiang Liu <liuyongqiang13@...wei.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yongqiang Liu <liuyongqiang13@...wei.com>
---
 drivers/gpu/host1x/debug.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/host1x/debug.c b/drivers/gpu/host1x/debug.c
index 545fc0afb..1688e98c4 100644
--- a/drivers/gpu/host1x/debug.c
+++ b/drivers/gpu/host1x/debug.c
@@ -110,7 +110,7 @@ static void show_all(struct host1x *m, struct output *o, bool show_fifo)
 	}
 }
 
-static int host1x_debug_show_all(struct seq_file *s, void *unused)
+static int host1x_debug_all_show(struct seq_file *s, void *unused)
 {
 	struct output o = {
 		.fn = write_to_seqfile,
@@ -122,6 +122,8 @@ static int host1x_debug_show_all(struct seq_file *s, void *unused)
 	return 0;
 }
 
+DEFINE_SHOW_ATTRIBUTE(host1x_debug_all);
+
 static int host1x_debug_show(struct seq_file *s, void *unused)
 {
 	struct output o = {
@@ -134,29 +136,7 @@ static int host1x_debug_show(struct seq_file *s, void *unused)
 	return 0;
 }
 
-static int host1x_debug_open_all(struct inode *inode, struct file *file)
-{
-	return single_open(file, host1x_debug_show_all, inode->i_private);
-}
-
-static const struct file_operations host1x_debug_all_fops = {
-	.open = host1x_debug_open_all,
-	.read_iter = seq_read_iter,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static int host1x_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, host1x_debug_show, inode->i_private);
-}
-
-static const struct file_operations host1x_debug_fops = {
-	.open = host1x_debug_open,
-	.read_iter = seq_read_iter,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(host1x_debug);
 
 static void host1x_debugfs_init(struct host1x *host1x)
 {
-- 
2.17.1