[PATCH -next v2] crypto: hisilicon/qm - Convert to DEFINE_SHOW_ATTRIBUTE

[Qinglang Miao]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

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

 drivers/crypto/hisilicon/qm.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 07efc5283..1923f153d 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -1050,17 +1050,7 @@ static int qm_regs_show(struct seq_file *s, void *unused)
 	return 0;
 }
 
-static int qm_regs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, qm_regs_show, inode->i_private);
-}
-
-static const struct file_operations qm_regs_fops = {
-	.owner = THIS_MODULE,
-	.open = qm_regs_open,
-	.read = seq_read,
-	.release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(qm_regs);
 
 static ssize_t qm_cmd_read(struct file *filp, char __user *buffer,
 			   size_t count, loff_t *pos)
-- 
2.23.0