Add drv_to_virtio wrapper to get virtio_driver from device_driver.
Signed-off-by: Wanlong Gao <[email protected]>
---
drivers/virtio/virtio.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index ba24e87..43c1fb2 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -11,6 +11,10 @@ static inline struct virtio_device *dev_to_virtio(struct
device *_dev)
{
return container_of(_dev, struct virtio_device, dev);
}
+static inline struct virtio_driver *drv_to_virtio(struct device_driver *drv)
+{
+ return container_of(drv, struct virtio_driver, driver);
+}
static ssize_t device_show(struct device *_d,
struct device_attribute *attr, char *buf)
@@ -78,7 +82,7 @@ static int virtio_dev_match(struct device *_dv, struct
device_driver *_dr)
struct virtio_device *dev = dev_to_virtio(_dv);
const struct virtio_device_id *ids;
- ids = container_of(_dr, struct virtio_driver, driver)->id_table;
+ ids = drv_to_virtio(_dr)->id_table;
for (i = 0; ids[i].device; i++)
if (virtio_id_match(dev, &ids[i]))
return 1;
@@ -102,8 +106,7 @@ void virtio_check_driver_offered_feature(const struct
virtio_device *vdev,
unsigned int fbit)
{
unsigned int i;
- struct virtio_driver *drv = container_of(vdev->dev.driver,
- struct virtio_driver, driver);
+ struct virtio_driver *drv = drv_to_virtio(vdev->dev.driver);
for (i = 0; i < drv->feature_table_size; i++)
if (drv->feature_table[i] == fbit)
@@ -116,8 +119,7 @@ static int virtio_dev_probe(struct device *_d)
{
int err, i;
struct virtio_device *dev = dev_to_virtio(_d);
- struct virtio_driver *drv = container_of(dev->dev.driver,
- struct virtio_driver, driver);
+ struct virtio_driver *drv = drv_to_virtio(dev->dev.driver);
u32 device_features;
/* We have a driver! */
@@ -157,8 +159,7 @@ static int virtio_dev_probe(struct device *_d)
static int virtio_dev_remove(struct device *_d)
{
struct virtio_device *dev = dev_to_virtio(_d);
- struct virtio_driver *drv = container_of(dev->dev.driver,
- struct virtio_driver, driver);
+ struct virtio_driver *drv = drv_to_virtio(dev->dev.driver);
drv->remove(dev);
--
1.8.0
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