diff mbox series

[v9,06/10] vfio: Mark cdev usage in vfio_device

Message ID 20230711023126.5531-7-yi.l.liu@intel.com (mailing list archive)
State New, archived
Headers show
Series Enhance vfio PCI hot reset for vfio cdev device | expand

Commit Message

Yi Liu July 11, 2023, 2:31 a.m. UTC 
This can be used to differentiate whether to report group_id or devid in
the revised VFIO_DEVICE_GET_PCI_HOT_RESET_INFO ioctl. At this moment, no
cdev path yet, so the vfio_device_cdev_opened() helper always returns false.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
---
 include/linux/vfio.h | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Jason Gunthorpe July 12, 2023, 1:42 p.m. UTC | #1 
On Mon, Jul 10, 2023 at 07:31:22PM -0700, Yi Liu wrote:
> This can be used to differentiate whether to report group_id or devid in
> the revised VFIO_DEVICE_GET_PCI_HOT_RESET_INFO ioctl. At this moment, no
> cdev path yet, so the vfio_device_cdev_opened() helper always returns false.
> 
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
> Tested-by: Terrence Xu <terrence.xu@intel.com>
> Signed-off-by: Yi Liu <yi.l.liu@intel.com>
> ---
>  include/linux/vfio.h | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason
diff mbox series

Patch

diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 2c137ea94a3e..2a45853773a6 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -139,6 +139,11 @@  int vfio_iommufd_emulated_attach_ioas(struct vfio_device *vdev, u32 *pt_id);
 	((int (*)(struct vfio_device *vdev, u32 *pt_id)) NULL)
 #endif
 
+static inline bool vfio_device_cdev_opened(struct vfio_device *device)
+{
+	return false;
+}
+
 /**
  * struct vfio_migration_ops - VFIO bus device driver migration callbacks
  *