linux-kernel - [PATCH 24/42] drivers/scsi/hptiop: Convert snprintf to sysfs

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Date: Tue, 16 Jan 2024 12:51:33 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: linux-kernel@...r.kernel.org
Cc: Li Zhijian <lizhijian@...itsu.com>,
	HighPoint Linux Team <linux@...hpoint-tech.com>,
	"James E.J. Bottomley" <jejb@...ux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	linux-scsi@...r.kernel.org
Subject: [PATCH 24/42] drivers/scsi/hptiop: Convert snprintf to sysfs_emit

Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.

coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().

> ./drivers/scsi/hptiop.c:1114:8-16: WARNING: please use sysfs_emit
> ./drivers/scsi/hptiop.c:1123:8-16: WARNING: please use sysfs_emit

No functional change intended

CC: HighPoint Linux Team <linux@...hpoint-tech.com>
CC: "James E.J. Bottomley" <jejb@...ux.ibm.com>
CC: "Martin K. Petersen" <martin.petersen@...cle.com>
CC: linux-scsi@...r.kernel.org
Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
 drivers/scsi/hptiop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index f5334ccbf2ca..65426df93270 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1111,7 +1111,7 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
 static ssize_t hptiop_show_version(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
+	return sysfs_emit(buf, "%s\n", driver_ver);
 }
 
 static ssize_t hptiop_show_fw_version(struct device *dev,
@@ -1120,7 +1120,7 @@ static ssize_t hptiop_show_fw_version(struct device *dev,
 	struct Scsi_Host *host = class_to_shost(dev);
 	struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
 
-	return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
+	return sysfs_emit(buf, "%d.%d.%d.%d\n",
 				hba->firmware_version >> 24,
 				(hba->firmware_version >> 16) & 0xff,
 				(hba->firmware_version >> 8) & 0xff,
-- 
2.29.2