vfio_ccw will need it.
Signed-off-by: Jason Gunthorpe jgg@nvidia.com --- drivers/vfio/vfio.c | 3 ++- include/linux/vfio.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 08b27b64f0f935..44adf112e3b5dd 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -554,10 +554,11 @@ void vfio_device_put(struct vfio_device *device) } EXPORT_SYMBOL_GPL(vfio_device_put);
-static bool vfio_device_try_get(struct vfio_device *device) +bool vfio_device_try_get(struct vfio_device *device) { return refcount_inc_not_zero(&device->refcount); } +EXPORT_SYMBOL_GPL(vfio_device_try_get);
static struct vfio_device *vfio_group_get_device(struct vfio_group *group, struct device *dev) diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 76191d7abed185..f99e4b2d9b45f0 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -78,6 +78,7 @@ int vfio_register_group_dev(struct vfio_device *device); int vfio_register_emulated_iommu_dev(struct vfio_device *device); void vfio_unregister_group_dev(struct vfio_device *device); extern struct vfio_device *vfio_device_get_from_dev(struct device *dev); +bool vfio_device_try_get(struct vfio_device *device); extern void vfio_device_put(struct vfio_device *device);
int vfio_assign_device_set(struct vfio_device *device, void *set_id);