[PATCH -next v2] gpu: host1x: debug: Convert to DEFINE_SHOW_ATTRIBUTE

[Qinglang Miao]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang at huawei.com>
---
v2: based on linux-next(20200917), and can be applied to
    mainline cleanly now.

 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 1b4997bda..1aa46d430 100644
--- a/drivers/gpu/host1x/debug.c
+++ b/drivers/gpu/host1x/debug.c
@@ -114,7 +114,7 @@ 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,
@@ -126,6 +126,8 @@ 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 = {
@@ -138,29 +140,7 @@ 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 = seq_read,
-	.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 = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(host1x_debug);
 
 static void host1x_debugfs_init(struct host1x *host1x)
 {
-- 
2.23.0