diff mbox series

[v3,09/10] vfio: Export vfio_device_try_get()

Message ID 9-v3-57c1502c62fd+2190-ccw_mdev_jgg@nvidia.com (mailing list archive)
State New, archived
Headers show
Series Move vfio_ccw to the new mdev API | expand

Commit Message

Jason Gunthorpe Oct. 1, 2021, 5:52 p.m. UTC 
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(-)
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Patch

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);