Commit 9bffdca8 authored by Wanlong Gao's avatar Wanlong Gao Committed by Rusty Russell
Browse files

virtio: use dev_to_virtio wrapper in virtio 



Use dev_to_virtio wrapper in virtio to make code clearly.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: default avatarWanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 40f9938c

drivers/virtio/virtio.c

+9 −10
Original line number Diff line number Diff line
@@ -10,33 +10,32 @@ static DEFINE_IDA(virtio_index_ida); 
static ssize_t device_show(struct device *_d,

			   struct device_attribute *attr, char *buf)

{

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	return sprintf(buf, "0x%04x\n", dev->id.device);

}

static ssize_t vendor_show(struct device *_d,

			   struct device_attribute *attr, char *buf)

{

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	return sprintf(buf, "0x%04x\n", dev->id.vendor);

}

static ssize_t status_show(struct device *_d,

			   struct device_attribute *attr, char *buf)

{

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	return sprintf(buf, "0x%08x\n", dev->config->get_status(dev));

}

static ssize_t modalias_show(struct device *_d,

			     struct device_attribute *attr, char *buf)

{

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);



	struct virtio_device *dev = dev_to_virtio(_d);

	return sprintf(buf, "virtio:d%08Xv%08X\n",

		       dev->id.device, dev->id.vendor);

}

static ssize_t features_show(struct device *_d,

			     struct device_attribute *attr, char *buf)

{

	struct virtio_device *dev = container_of(_d, struct virtio_device, dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	unsigned int i;

	ssize_t len = 0;
@@ -71,7 +70,7 @@ static inline int virtio_id_match(const struct virtio_device *dev, 
static int virtio_dev_match(struct device *_dv, struct device_driver *_dr)

{

	unsigned int i;

	struct virtio_device *dev = container_of(_dv,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_dv);

	const struct virtio_device_id *ids;



	ids = container_of(_dr, struct virtio_driver, driver)->id_table;
@@ -83,7 +82,7 @@ static int virtio_dev_match(struct device *_dv, struct device_driver *_dr) 


static int virtio_uevent(struct device *_dv, struct kobj_uevent_env *env)

{

	struct virtio_device *dev = container_of(_dv,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_dv);



	return add_uevent_var(env, "MODALIAS=virtio:d%08Xv%08X",

			      dev->id.device, dev->id.vendor);
@@ -111,7 +110,7 @@ EXPORT_SYMBOL_GPL(virtio_check_driver_offered_feature); 
static int virtio_dev_probe(struct device *_d)

{

	int err, i;

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	struct virtio_driver *drv = container_of(dev->dev.driver,

						 struct virtio_driver, driver);

	u32 device_features;
@@ -152,7 +151,7 @@ static int virtio_dev_probe(struct device *_d) 


static int virtio_dev_remove(struct device *_d)

{

	struct virtio_device *dev = container_of(_d,struct virtio_device,dev);

	struct virtio_device *dev = dev_to_virtio(_d);

	struct virtio_driver *drv = container_of(dev->dev.driver,

						 struct virtio_driver, driver);

include/linux/virtio.h

+5 −1
Original line number Diff line number Diff line
@@ -85,7 +85,11 @@ struct virtio_device { 
	void *priv;

};



#define dev_to_virtio(dev) container_of(dev, struct virtio_device, dev)

static inline struct virtio_device *dev_to_virtio(struct device *_dev)

{

	return container_of(_dev, struct virtio_device, dev);

}



int register_virtio_device(struct virtio_device *dev);

void unregister_virtio_device(struct virtio_device *dev);

CRA Git | Maintained and supported by SUSTech CRA and CCSE