linux-kernel - [PATCH -next v2] scsi: snic: Convert to DEFINE_SHOW

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Date:   Sat, 19 Sep 2020 10:52:04 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Karan Tilak Kumar <kartilak@...co.com>,
        Sesidhar Baddela <sebaddel@...co.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Qinglang Miao" <miaoqinglang@...wei.com>
Subject: [PATCH -next v2] scsi: snic: Convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.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