RDMA: Convert sysfs device * show functions to use sysfs_emit()

Done with cocci script:

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	...
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

Link: https://lore.kernel.org/r/7f406fa8e3aa2552c022bec680f621e38d1fe414.1602122879.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

1 files changed, 20 insertions, 20 deletions

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index d8fcd21ab472..f686d1d6e91c 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2896,7 +2896,7 @@ static ssize_t show_id_ext(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "0x%016llx\n", be64_to_cpu(target->id_ext));
+	return sysfs_emit(buf, "0x%016llx\n", be64_to_cpu(target->id_ext));
 }
 
 static ssize_t show_ioc_guid(struct device *dev, struct device_attribute *attr,
@@ -2904,7 +2904,7 @@ static ssize_t show_ioc_guid(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "0x%016llx\n", be64_to_cpu(target->ioc_guid));
+	return sysfs_emit(buf, "0x%016llx\n", be64_to_cpu(target->ioc_guid));
 }
 
 static ssize_t show_service_id(struct device *dev,
@@ -2914,8 +2914,8 @@ static ssize_t show_service_id(struct device *dev,
 
 	if (target->using_rdma_cm)
 		return -ENOENT;
-	return sprintf(buf, "0x%016llx\n",
-		       be64_to_cpu(target->ib_cm.service_id));
+	return sysfs_emit(buf, "0x%016llx\n",
+			  be64_to_cpu(target->ib_cm.service_id));
 }
 
 static ssize_t show_pkey(struct device *dev, struct device_attribute *attr,
@@ -2925,7 +2925,7 @@ static ssize_t show_pkey(struct device *dev, struct device_attribute *attr,
 
 	if (target->using_rdma_cm)
 		return -ENOENT;
-	return sprintf(buf, "0x%04x\n", be16_to_cpu(target->ib_cm.pkey));
+	return sysfs_emit(buf, "0x%04x\n", be16_to_cpu(target->ib_cm.pkey));
 }
 
 static ssize_t show_sgid(struct device *dev, struct device_attribute *attr,
@@ -2933,7 +2933,7 @@ static ssize_t show_sgid(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%pI6\n", target->sgid.raw);
+	return sysfs_emit(buf, "%pI6\n", target->sgid.raw);
 }
 
 static ssize_t show_dgid(struct device *dev, struct device_attribute *attr,
@@ -2944,7 +2944,7 @@ static ssize_t show_dgid(struct device *dev, struct device_attribute *attr,
 
 	if (target->using_rdma_cm)
 		return -ENOENT;
-	return sprintf(buf, "%pI6\n", ch->ib_cm.path.dgid.raw);
+	return sysfs_emit(buf, "%pI6\n", ch->ib_cm.path.dgid.raw);
 }
 
 static ssize_t show_orig_dgid(struct device *dev,
@@ -2954,7 +2954,7 @@ static ssize_t show_orig_dgid(struct device *dev,
 
 	if (target->using_rdma_cm)
 		return -ENOENT;
-	return sprintf(buf, "%pI6\n", target->ib_cm.orig_dgid.raw);
+	return sysfs_emit(buf, "%pI6\n", target->ib_cm.orig_dgid.raw);
 }
 
 static ssize_t show_req_lim(struct device *dev,
@@ -2968,7 +2968,7 @@ static ssize_t show_req_lim(struct device *dev,
 		ch = &target->ch[i];
 		req_lim = min(req_lim, ch->req_lim);
 	}
-	return sprintf(buf, "%d\n", req_lim);
+	return sysfs_emit(buf, "%d\n", req_lim);
 }
 
 static ssize_t show_zero_req_lim(struct device *dev,
@@ -2976,7 +2976,7 @@ static ssize_t show_zero_req_lim(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%d\n", target->zero_req_lim);
+	return sysfs_emit(buf, "%d\n", target->zero_req_lim);
 }
 
 static ssize_t show_local_ib_port(struct device *dev,
@@ -2984,7 +2984,7 @@ static ssize_t show_local_ib_port(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%d\n", target->srp_host->port);
+	return sysfs_emit(buf, "%d\n", target->srp_host->port);
 }
 
 static ssize_t show_local_ib_device(struct device *dev,
@@ -2992,8 +2992,8 @@ static ssize_t show_local_ib_device(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%s\n",
-		       dev_name(&target->srp_host->srp_dev->dev->dev));
+	return sysfs_emit(buf, "%s\n",
+			  dev_name(&target->srp_host->srp_dev->dev->dev));
 }
 
 static ssize_t show_ch_count(struct device *dev, struct device_attribute *attr,
@@ -3001,7 +3001,7 @@ static ssize_t show_ch_count(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%d\n", target->ch_count);
+	return sysfs_emit(buf, "%d\n", target->ch_count);
 }
 
 static ssize_t show_comp_vector(struct device *dev,
@@ -3009,7 +3009,7 @@ static ssize_t show_comp_vector(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%d\n", target->comp_vector);
+	return sysfs_emit(buf, "%d\n", target->comp_vector);
 }
 
 static ssize_t show_tl_retry_count(struct device *dev,
@@ -3017,7 +3017,7 @@ static ssize_t show_tl_retry_count(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%d\n", target->tl_retry_count);
+	return sysfs_emit(buf, "%d\n", target->tl_retry_count);
 }
 
 static ssize_t show_cmd_sg_entries(struct device *dev,
@@ -3025,7 +3025,7 @@ static ssize_t show_cmd_sg_entries(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%u\n", target->cmd_sg_cnt);
+	return sysfs_emit(buf, "%u\n", target->cmd_sg_cnt);
 }
 
 static ssize_t show_allow_ext_sg(struct device *dev,
@@ -3033,7 +3033,7 @@ static ssize_t show_allow_ext_sg(struct device *dev,
 {
 	struct srp_target_port *target = host_to_target(class_to_shost(dev));
 
-	return sprintf(buf, "%s\n", target->allow_ext_sg ? "true" : "false");
+	return sysfs_emit(buf, "%s\n", target->allow_ext_sg ? "true" : "false");
 }
 
 static DEVICE_ATTR(id_ext,	    S_IRUGO, show_id_ext,	   NULL);
@@ -3893,7 +3893,7 @@ static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_host *host = container_of(dev, struct srp_host, dev);
 
-	return sprintf(buf, "%s\n", dev_name(&host->srp_dev->dev->dev));
+	return sysfs_emit(buf, "%s\n", dev_name(&host->srp_dev->dev->dev));
 }
 
 static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
@@ -3903,7 +3903,7 @@ static ssize_t show_port(struct device *dev, struct device_attribute *attr,
 {
 	struct srp_host *host = container_of(dev, struct srp_host, dev);
 
-	return sprintf(buf, "%d\n", host->port);
+	return sysfs_emit(buf, "%d\n", host->port);
 }
 
 static DEVICE_ATTR(port, S_IRUGO, show_port, NULL);