Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

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

 drivers/scsi/snic/snic_debugfs.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/scsi/snic/snic_debugfs.c b/drivers/scsi/snic/snic_debugfs.c
index 2b3493655..a142e17aa 100644
--- a/drivers/scsi/snic/snic_debugfs.c
+++ b/drivers/scsi/snic/snic_debugfs.c
@@ -334,25 +334,7 @@ snic_stats_show(struct seq_file *sfp, void *data)
        return 0;
 }
 
-/*
- * snic_stats_open - Open the stats file for specific host
- *
- * Description:
- * This routine opens a debugfs file stats of specific host
- */
-static int
-snic_stats_open(struct inode *inode, struct file *filp)
-{
-       return single_open(filp, snic_stats_show, inode->i_private);
-}
-
-static const struct file_operations snic_stats_fops = {
-       .owner  = THIS_MODULE,
-       .open   = snic_stats_open,
-       .read   = seq_read,
-       .llseek = seq_lseek,
-       .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(snic_stats);
 
 static const struct file_operations snic_reset_stats_fops = {
        .owner = THIS_MODULE,
-- 
2.23.0

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