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From: <yang.yang29@zte.com.cn>
To: <tyreld@linux.ibm.com>
Cc: <mpe@ellerman.id.au>, <npiggin@gmail.com>,
	<christophe.leroy@csgroup.eu>, <jejb@linux.ibm.com>,
	<martin.petersen@oracle.com>, <linux-scsi@vger.kernel.org>,
	<linuxppc-dev@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>,
	<xu.panda@zte.com.cn>, <yang.yang29@zte.com.cn>
Subject: [PATCH linux next v2] scsi: ibmvfc: use sysfs_emit() to instead of scnprintf()
Date: Mon, 14 Nov 2022 11:38:28 +0800 (CST)	[thread overview]
Message-ID: <202211141138288877199@zte.com.cn> (raw)

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

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

---
change for v2
 - align code
---
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
---
 drivers/scsi/ibmvscsi/ibmvfc.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 1a0c0b7289d2..841e47c94b12 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -3411,8 +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",
-			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,
@@ -3421,8 +3420,7 @@ 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,
@@ -3431,8 +3429,7 @@ 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,
@@ -3441,8 +3438,7 @@ 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,
@@ -3450,7 +3446,7 @@ 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 +3454,7 @@ 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 +3475,7 @@ 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 +3513,7 @@ 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

             reply	other threads:[~2022-11-14  3:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-14  3:38 yang.yang29 [this message]
2022-11-14  7:18 ` [PATCH linux next v2] scsi: ibmvfc: use sysfs_emit() to instead of scnprintf() Christophe Leroy

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