[PATCH v2] drivers: scsi: replace snprintf in show functions with sysfs_emit

From: cgel . zte
Date: Tue Nov 02 2021 - 02:59:28 EST


From: Jing Yao <yao.jing2@xxxxxxxxxx>

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

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Jing Yao <yao.jing2@xxxxxxxxxx>
---
drivers/scsi/ibmvscsi/ibmvfc.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index d0eab5700dc5..69bf55c037a5 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -3403,7 +3403,7 @@ 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);
}

@@ -3413,7 +3413,7 @@ 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);
}

@@ -3423,7 +3423,7 @@ 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);
}

@@ -3433,7 +3433,7 @@ 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);
}

@@ -3442,7 +3442,7 @@ 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,
@@ -3450,7 +3450,7 @@ 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));
}

/**
--
2.25.1