Commit 1c7fd726 authored by Joe Perches's avatar Joe Perches Committed by Jason Gunthorpe
Browse files

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: default avatarJoe Perches <joe@perches.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 676a80ad

drivers/infiniband/core/sysfs.c

+28 −19
Original line number Diff line number Diff line
@@ -1230,14 +1230,22 @@ static ssize_t node_type_show(struct device *device, 
	struct ib_device *dev = rdma_device_to_ibdev(device);



	switch (dev->node_type) {

	case RDMA_NODE_IB_CA:	  return sprintf(buf, "%d: CA\n", dev->node_type);

	case RDMA_NODE_RNIC:	  return sprintf(buf, "%d: RNIC\n", dev->node_type);

	case RDMA_NODE_USNIC:	  return sprintf(buf, "%d: usNIC\n", dev->node_type);

	case RDMA_NODE_USNIC_UDP: return sprintf(buf, "%d: usNIC UDP\n", dev->node_type);

	case RDMA_NODE_UNSPECIFIED: return sprintf(buf, "%d: unspecified\n", dev->node_type);

	case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);

	case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);

	default:		  return sprintf(buf, "%d: <unknown>\n", dev->node_type);

	case RDMA_NODE_IB_CA:

		return sysfs_emit(buf, "%d: CA\n", dev->node_type);

	case RDMA_NODE_RNIC:

		return sysfs_emit(buf, "%d: RNIC\n", dev->node_type);

	case RDMA_NODE_USNIC:

		return sysfs_emit(buf, "%d: usNIC\n", dev->node_type);

	case RDMA_NODE_USNIC_UDP:

		return sysfs_emit(buf, "%d: usNIC UDP\n", dev->node_type);

	case RDMA_NODE_UNSPECIFIED:

		return sysfs_emit(buf, "%d: unspecified\n", dev->node_type);

	case RDMA_NODE_IB_SWITCH:

		return sysfs_emit(buf, "%d: switch\n", dev->node_type);

	case RDMA_NODE_IB_ROUTER:

		return sysfs_emit(buf, "%d: router\n", dev->node_type);

	default:

		return sysfs_emit(buf, "%d: <unknown>\n", dev->node_type);

	}

}

static DEVICE_ATTR_RO(node_type);
@@ -1247,7 +1255,8 @@ static ssize_t sys_image_guid_show(struct device *device, 
{

	struct ib_device *dev = rdma_device_to_ibdev(device);



	return sprintf(buf, "%04x:%04x:%04x:%04x\n",

	return sysfs_emit(

		buf, "%04x:%04x:%04x:%04x\n",

		be16_to_cpu(((__be16 *)&dev->attrs.sys_image_guid)[0]),

		be16_to_cpu(((__be16 *)&dev->attrs.sys_image_guid)[1]),

		be16_to_cpu(((__be16 *)&dev->attrs.sys_image_guid)[2]),
@@ -1260,7 +1269,7 @@ static ssize_t node_guid_show(struct device *device, 
{

	struct ib_device *dev = rdma_device_to_ibdev(device);



	return sprintf(buf, "%04x:%04x:%04x:%04x\n",

	return sysfs_emit(buf, "%04x:%04x:%04x:%04x\n",

			  be16_to_cpu(((__be16 *)&dev->node_guid)[0]),

			  be16_to_cpu(((__be16 *)&dev->node_guid)[1]),

			  be16_to_cpu(((__be16 *)&dev->node_guid)[2]),
@@ -1273,7 +1282,7 @@ static ssize_t node_desc_show(struct device *device, 
{

	struct ib_device *dev = rdma_device_to_ibdev(device);



	return sprintf(buf, "%.64s\n", dev->node_desc);

	return sysfs_emit(buf, "%.64s\n", dev->node_desc);

}



static ssize_t node_desc_store(struct device *device,

drivers/infiniband/core/ucma.c

+1 −1
Original line number Diff line number Diff line
@@ -1825,7 +1825,7 @@ static ssize_t show_abi_version(struct device *dev, 
				struct device_attribute *attr,

				char *buf)

{

	return sprintf(buf, "%d\n", RDMA_USER_CM_ABI_VERSION);

	return sysfs_emit(buf, "%d\n", RDMA_USER_CM_ABI_VERSION);

}

static DEVICE_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);

drivers/infiniband/core/user_mad.c

+2 −2
Original line number Diff line number Diff line
@@ -1191,7 +1191,7 @@ static ssize_t ibdev_show(struct device *dev, struct device_attribute *attr, 
	if (!port)

		return -ENODEV;



	return sprintf(buf, "%s\n", dev_name(&port->ib_dev->dev));

	return sysfs_emit(buf, "%s\n", dev_name(&port->ib_dev->dev));

}

static DEVICE_ATTR_RO(ibdev);
@@ -1203,7 +1203,7 @@ static ssize_t port_show(struct device *dev, struct device_attribute *attr, 
	if (!port)

		return -ENODEV;



	return sprintf(buf, "%d\n", port->port_num);

	return sysfs_emit(buf, "%d\n", port->port_num);

}

static DEVICE_ATTR_RO(port);

drivers/infiniband/core/uverbs_main.c

+2 −2
Original line number Diff line number Diff line
@@ -1046,7 +1046,7 @@ static ssize_t ibdev_show(struct device *device, struct device_attribute *attr, 
	srcu_key = srcu_read_lock(&dev->disassociate_srcu);

	ib_dev = srcu_dereference(dev->ib_dev, &dev->disassociate_srcu);

	if (ib_dev)

		ret = sprintf(buf, "%s\n", dev_name(&ib_dev->dev));

		ret = sysfs_emit(buf, "%s\n", dev_name(&ib_dev->dev));

	srcu_read_unlock(&dev->disassociate_srcu, srcu_key);



	return ret;
@@ -1065,7 +1065,7 @@ static ssize_t abi_version_show(struct device *device, 
	srcu_key = srcu_read_lock(&dev->disassociate_srcu);

	ib_dev = srcu_dereference(dev->ib_dev, &dev->disassociate_srcu);

	if (ib_dev)

		ret = sprintf(buf, "%u\n", ib_dev->ops.uverbs_abi_ver);

		ret = sysfs_emit(buf, "%u\n", ib_dev->ops.uverbs_abi_ver);

	srcu_read_unlock(&dev->disassociate_srcu, srcu_key);



	return ret;

drivers/infiniband/hw/bnxt_re/main.c

+2 −2
Original line number Diff line number Diff line
@@ -608,7 +608,7 @@ static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, 
	struct bnxt_re_dev *rdev =

		rdma_device_to_drv_device(device, struct bnxt_re_dev, ibdev);



	return scnprintf(buf, PAGE_SIZE, "0x%x\n", rdev->en_dev->pdev->vendor);

	return sysfs_emit(buf, "0x%x\n", rdev->en_dev->pdev->vendor);

}

static DEVICE_ATTR_RO(hw_rev);
@@ -618,7 +618,7 @@ static ssize_t hca_type_show(struct device *device, 
	struct bnxt_re_dev *rdev =

		rdma_device_to_drv_device(device, struct bnxt_re_dev, ibdev);



	return scnprintf(buf, PAGE_SIZE, "%s\n", rdev->ibdev.node_desc);

	return sysfs_emit(buf, "%s\n", rdev->ibdev.node_desc);

}

static DEVICE_ATTR_RO(hca_type);

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