[PATCH 2/4] RDMA: Convert sysfs kobject * show functions to use sysfs_emit()

[Joe Perches <joe@xxxxxxxxxxx>]

Done with cocci script:

@@
identifier k_show;
identifier arg1, arg2, arg3;
@@
ssize_t k_show(struct kobject *
-	arg1
+	kobj
	, struct kobj_attribute *
-	arg2
+	attr
	, char *
-	arg3
+	buf
	)
{
	...
(
-	arg1
+	kobj
|
-	arg2
+	attr
|
-	arg3
+	buf
)
	...
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
identifier k_show;
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	...
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 26 ++++++++++----------
 drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 14 +++++------
 2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
index 7f71f10126fc..0c767582286b 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c
@@ -187,9 +187,9 @@ static ssize_t rtrs_clt_state_show(struct kobject *kobj,
 
 	sess = container_of(kobj, struct rtrs_clt_sess, kobj);
 	if (sess->state == RTRS_CLT_CONNECTED)
-		return sprintf(page, "connected\n");
+		return sysfs_emit(page, "connected\n");
 
-	return sprintf(page, "disconnected\n");
+	return sysfs_emit(page, "disconnected\n");
 }
 
 static struct kobj_attribute rtrs_clt_state_attr =
@@ -197,10 +197,10 @@ static struct kobj_attribute rtrs_clt_state_attr =
 
 static ssize_t rtrs_clt_reconnect_show(struct kobject *kobj,
 					struct kobj_attribute *attr,
-					char *page)
+					char *buf)
 {
-	return scnprintf(page, PAGE_SIZE, "Usage: echo 1 > %s\n",
-			 attr->attr.name);
+	return sysfs_emit(buf, "Usage: echo 1 > %s\n",
+			  attr->attr.name);
 }
 
 static ssize_t rtrs_clt_reconnect_store(struct kobject *kobj,
@@ -229,10 +229,10 @@ static struct kobj_attribute rtrs_clt_reconnect_attr =
 
 static ssize_t rtrs_clt_disconnect_show(struct kobject *kobj,
 					 struct kobj_attribute *attr,
-					 char *page)
+					 char *buf)
 {
-	return scnprintf(page, PAGE_SIZE, "Usage: echo 1 > %s\n",
-			 attr->attr.name);
+	return sysfs_emit(buf, "Usage: echo 1 > %s\n",
+			  attr->attr.name);
 }
 
 static ssize_t rtrs_clt_disconnect_store(struct kobject *kobj,
@@ -261,10 +261,10 @@ static struct kobj_attribute rtrs_clt_disconnect_attr =
 
 static ssize_t rtrs_clt_remove_path_show(struct kobject *kobj,
 					  struct kobj_attribute *attr,
-					  char *page)
+					  char *buf)
 {
-	return scnprintf(page, PAGE_SIZE, "Usage: echo 1 > %s\n",
-			 attr->attr.name);
+	return sysfs_emit(buf, "Usage: echo 1 > %s\n",
+			  attr->attr.name);
 }
 
 static ssize_t rtrs_clt_remove_path_store(struct kobject *kobj,
@@ -327,7 +327,7 @@ static ssize_t rtrs_clt_hca_port_show(struct kobject *kobj,
 
 	sess = container_of(kobj, typeof(*sess), kobj);
 
-	return scnprintf(page, PAGE_SIZE, "%u\n", sess->hca_port);
+	return sysfs_emit(page, "%u\n", sess->hca_port);
 }
 
 static struct kobj_attribute rtrs_clt_hca_port_attr =
@@ -341,7 +341,7 @@ static ssize_t rtrs_clt_hca_name_show(struct kobject *kobj,
 
 	sess = container_of(kobj, struct rtrs_clt_sess, kobj);
 
-	return scnprintf(page, PAGE_SIZE, "%s\n", sess->hca_name);
+	return sysfs_emit(page, "%s\n", sess->hca_name);
 }
 
 static struct kobj_attribute rtrs_clt_hca_name_attr =
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index 07fbb063555d..381a776ce404 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -28,10 +28,10 @@ static struct kobj_type ktype = {
 
 static ssize_t rtrs_srv_disconnect_show(struct kobject *kobj,
 					 struct kobj_attribute *attr,
-					 char *page)
+					 char *buf)
 {
-	return scnprintf(page, PAGE_SIZE, "Usage: echo 1 > %s\n",
-			 attr->attr.name);
+	return sysfs_emit(buf, "Usage: echo 1 > %s\n",
+			  attr->attr.name);
 }
 
 static ssize_t rtrs_srv_disconnect_store(struct kobject *kobj,
@@ -72,8 +72,8 @@ static ssize_t rtrs_srv_hca_port_show(struct kobject *kobj,
 	sess = container_of(kobj, typeof(*sess), kobj);
 	usr_con = sess->s.con[0];
 
-	return scnprintf(page, PAGE_SIZE, "%u\n",
-			 usr_con->cm_id->port_num);
+	return sysfs_emit(page, "%u\n",
+			  usr_con->cm_id->port_num);
 }
 
 static struct kobj_attribute rtrs_srv_hca_port_attr =
@@ -87,8 +87,8 @@ static ssize_t rtrs_srv_hca_name_show(struct kobject *kobj,
 
 	sess = container_of(kobj, struct rtrs_srv_sess, kobj);
 
-	return scnprintf(page, PAGE_SIZE, "%s\n",
-			 sess->s.dev->ib_dev->name);
+	return sysfs_emit(page, "%s\n",
+			  sess->s.dev->ib_dev->name);
 }
 
 static struct kobj_attribute rtrs_srv_hca_name_attr =
-- 
2.26.0