[PATCH] fs/debugfs: Convert to DEFINE_SHOW_ATTRIBUTE

[zuoqilin1]

From: zuoqilin <zuoqi...@yulong.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: zuoqilin <zuoqi...@yulong.com>
---
 fs/debugfs/file.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 686e0ad..d670ca3 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -1045,7 +1045,7 @@ void debugfs_print_regs32(struct seq_file *s, const 
struct debugfs_reg32 *regs,
 }
 EXPORT_SYMBOL_GPL(debugfs_print_regs32);
 
-static int debugfs_show_regset32(struct seq_file *s, void *data)
+static int regset32_show(struct seq_file *s, void *data)
 {
        struct debugfs_regset32 *regset = s->private;
 
@@ -1060,17 +1060,7 @@ static int debugfs_show_regset32(struct seq_file *s, 
void *data)
        return 0;
 }
 
-static int debugfs_open_regset32(struct inode *inode, struct file *file)
-{
-       return single_open(file, debugfs_show_regset32, inode->i_private);
-}
-
-static const struct file_operations fops_regset32 = {
-       .open =         debugfs_open_regset32,
-       .read =         seq_read,
-       .llseek =       seq_lseek,
-       .release =      single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(regset32);
 
 /**
  * debugfs_create_regset32 - create a debugfs file that returns register values
@@ -1091,7 +1081,7 @@ void debugfs_create_regset32(const char *name, umode_t 
mode,
                             struct dentry *parent,
                             struct debugfs_regset32 *regset)
 {
-       debugfs_create_file(name, mode, parent, regset, &fops_regset32);
+       debugfs_create_file(name, mode, parent, regset, &regset32_fops);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_regset32);
 
-- 
1.9.1