[PATCH -next] pktcdvd: Convert to DEFINE_SHOW_ATTRIBUTE

[Qinglang Miao]

From: Liu Shixin <liushix...@huawei.com>

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Liu Shixin <liushix...@huawei.com>
---
 drivers/block/pktcdvd.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index c81f63714..6a79770db 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -452,23 +452,12 @@ static void pkt_sysfs_cleanup(void)
 
  *******************************************************************/
 
-static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
+static int pkt_debugfs_show(struct seq_file *m, void *p)
 {
        return pkt_seq_show(m, p);
 }
 
-static int pkt_debugfs_fops_open(struct inode *inode, struct file *file)
-{
-       return single_open(file, pkt_debugfs_seq_show, inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
-       .open           = pkt_debugfs_fops_open,
-       .read_iter              = seq_read_iter,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-       .owner          = THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(pkt_debugfs);
 
 static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 {
@@ -479,7 +468,7 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
                return;
 
        pd->dfs_f_info = debugfs_create_file("info", 0444,
-                                            pd->dfs_d_root, pd, &debug_fops);
+                                            pd->dfs_d_root, pd, 
&pkt_debugfs_fops);
 }
 
 static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd)
-- 
2.17.1