linux-kernel - [PATCH linux-next] scsi: ibmvfc: use sysfs

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Message-ID: <202211102034017058666@zte.com.cn>
Date:   Thu, 10 Nov 2022 20:34:01 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <tyreld@...ux.ibm.com>
Cc:     <mpe@...erman.id.au>, <npiggin@...il.com>,
        <christophe.leroy@...roup.eu>, <jejb@...ux.ibm.com>,
        <martin.petersen@...cle.com>, <linux-scsi@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <xu.panda@....com.cn>, <yang.yang29@....com.cn>
Subject: [PATCH linux-next] scsi: ibmvfc: use sysfs_emit() to instead of scnprintf()

From: Xu Panda <xu.panda@....com.cn>

Replace the open-code with sysfs_emit() to simplify the code.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Xu Panda <xu.panda@....com.cn>
Signed-off-by: Yang Yang <yang.yang29@....com>
---
 drivers/scsi/ibmvscsi/ibmvfc.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 1a0c0b7289d2..c412752ea140 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -3411,7 +3411,7 @@ 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",
+	return sysfs_emit(buf, "%s\n",
 			vhost->login_buf->resp.partition_name);
 }

@@ -3421,7 +3421,7 @@ 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",
+	return sysfs_emit(buf, "%s\n",
 			vhost->login_buf->resp.device_name);
 }

@@ -3431,7 +3431,7 @@ 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",
+	return sysfs_emit(buf, "%s\n",
 			vhost->login_buf->resp.port_loc_code);
 }

@@ -3441,7 +3441,7 @@ 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",
+	return sysfs_emit(buf, "%s\n",
 			vhost->login_buf->resp.drc_name);
 }

@@ -3450,7 +3450,7 @@ 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,
@@ -3458,7 +3458,7 @@ 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));
 }

 /**
@@ -3479,7 +3479,7 @@ 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;
 }
@@ -3517,7 +3517,7 @@ static ssize_t ibmvfc_show_scsi_channels(struct device *dev,
 	int len;

 	spin_lock_irqsave(shost->host_lock, flags);
-	len = snprintf(buf, PAGE_SIZE, "%d\n", vhost->client_scsi_channels);
+	len = sysfs_emit(buf, "%d\n", vhost->client_scsi_channels);
 	spin_unlock_irqrestore(shost->host_lock, flags);
 	return len;
 }
-- 
2.15.2