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-rw-r--r--include/linux/virtio.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index cf8adb1f5b2c..ff6714e6d0f5 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -78,7 +78,7 @@ struct virtio_device {
int index;
struct device dev;
struct virtio_device_id id;
- struct virtio_config_ops *config;
+ const struct virtio_config_ops *config;
struct list_head vqs;
/* Note that this is a Linux set_bit-style bitmap. */
unsigned long features[1];
@@ -126,4 +126,13 @@ static inline struct virtio_driver *drv_to_virtio(struct device_driver *drv)
int register_virtio_driver(struct virtio_driver *drv);
void unregister_virtio_driver(struct virtio_driver *drv);
+
+/* module_virtio_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit. This eliminates a lot of
+ * boilerplate. Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_virtio_driver(__virtio_driver) \
+ module_driver(__virtio_driver, register_virtio_driver, \
+ unregister_virtio_driver)
#endif /* _LINUX_VIRTIO_H */