linux-kernel - [PATCH] scsi: csiostor: Replace snprintf in show functions with sysfs

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Date:   Fri,  5 Nov 2021 09:03:21 +0000
From:   cgel.zte@...il.com
To:     jejb@...ux.ibm.com
Cc:     martin.petersen@...cle.com, bvanassche@....org,
        jiapeng.chong@...ux.alibaba.com, yao.jing2@....com.cn,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] scsi: csiostor: Replace snprintf in show functions with  sysfs_emit

From: Jing Yao <yao.jing2@....com.cn>

coccicheck complains about the use of snprintf() in sysfs show
functions:
WARNING use scnprintf or sprintf

Use sysfs_emit instead of scnprintf, snprintf or sprintf makes more
sense.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Jing Yao <yao.jing2@....com.cn>
---
 drivers/scsi/csiostor/csio_scsi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index 55db02521221..f9b87ae2aa25 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -1366,9 +1366,9 @@ csio_show_hw_state(struct device *dev,
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 
 	if (csio_is_hw_ready(hw))
-		return snprintf(buf, PAGE_SIZE, "ready\n");
+		return sysfs_emit(buf, "ready\n");
 	else
-		return snprintf(buf, PAGE_SIZE, "not ready\n");
+		return sysfs_emit(buf, "not ready\n");
 }
 
 /* Device reset */
@@ -1430,7 +1430,7 @@ csio_show_dbg_level(struct device *dev,
 {
 	struct csio_lnode *ln = shost_priv(class_to_shost(dev));
 
-	return snprintf(buf, PAGE_SIZE, "%x\n", ln->params.log_level);
+	return sysfs_emit(buf, "%x\n", ln->params.log_level);
 }
 
 /* Store debug level */
@@ -1476,7 +1476,7 @@ csio_show_num_reg_rnodes(struct device *dev,
 {
 	struct csio_lnode *ln = shost_priv(class_to_shost(dev));
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", ln->num_reg_rnodes);
+	return sysfs_emit(buf, "%d\n", ln->num_reg_rnodes);
 }
 
 static DEVICE_ATTR(num_reg_rnodes, S_IRUGO, csio_show_num_reg_rnodes, NULL);
-- 
2.25.1