linux-kernel - [PATCH] scsi: ibmvfc: convert sysfs sprintf/snprintf family to sysfs

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Message-Id: <1612333669-103403-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Wed,  3 Feb 2021 14:27:49 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     tyreld@...ux.ibm.com
Cc:     mpe@...erman.id.au, benh@...nel.crashing.org, paulus@...ba.org,
        jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] scsi: ibmvfc: convert sysfs sprintf/snprintf family to sysfs_emit

Fix the following coccicheck warning:

./drivers/scsi/ibmvscsi/ibmvfc.c: WARNING: use scnprintf or
sprintf.

Reported-by: Abaci Robot<abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/scsi/ibmvscsi/ibmvfc.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 65f168c..99f5575 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -3038,8 +3038,7 @@ static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			vhost->login_buf->resp.partition_name);
+	return sysfs_emit(buf, "%s\n", vhost->login_buf->resp.partition_name);
 }
 
 static ssize_t ibmvfc_show_host_device_name(struct device *dev,
@@ -3048,8 +3047,7 @@ static ssize_t ibmvfc_show_host_device_name(struct device *dev,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			vhost->login_buf->resp.device_name);
+	return sysfs_emit(buf, "%s\n", vhost->login_buf->resp.device_name);
 }
 
 static ssize_t ibmvfc_show_host_loc_code(struct device *dev,
@@ -3058,8 +3056,7 @@ static ssize_t ibmvfc_show_host_loc_code(struct device *dev,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			vhost->login_buf->resp.port_loc_code);
+	return sysfs_emit(buf, "%s\n", vhost->login_buf->resp.port_loc_code);
 }
 
 static ssize_t ibmvfc_show_host_drc_name(struct device *dev,
@@ -3068,8 +3065,7 @@ static ssize_t ibmvfc_show_host_drc_name(struct device *dev,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			vhost->login_buf->resp.drc_name);
+	return sysfs_emit(buf, "%s\n", vhost->login_buf->resp.drc_name);
 }
 
 static ssize_t ibmvfc_show_host_npiv_version(struct device *dev,
@@ -3077,7 +3073,7 @@ static ssize_t ibmvfc_show_host_npiv_version(struct device *dev,
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
-	return snprintf(buf, PAGE_SIZE, "%d\n", be32_to_cpu(vhost->login_buf->resp.version));
+	return sysfs_emit(buf, "%d\n", be32_to_cpu(vhost->login_buf->resp.version));
 }
 
 static ssize_t ibmvfc_show_host_capabilities(struct device *dev,
@@ -3085,7 +3081,7 @@ static ssize_t ibmvfc_show_host_capabilities(struct device *dev,
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ibmvfc_host *vhost = shost_priv(shost);
-	return snprintf(buf, PAGE_SIZE, "%llx\n", be64_to_cpu(vhost->login_buf->resp.capabilities));
+	return sysfs_emit(buf, "%llx\n", be64_to_cpu(vhost->login_buf->resp.capabilities));
 }
 
 /**
@@ -3105,7 +3101,7 @@ static ssize_t ibmvfc_show_log_level(struct device *dev,
 	int len;
 
 	spin_lock_irqsave(shost->host_lock, flags);
-	len = snprintf(buf, PAGE_SIZE, "%d\n", vhost->log_level);
+	len = sysfs_emit(buf, "%d\n", vhost->log_level);
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	return len;
 }
-- 
1.8.3.1