[PATCH] vfio-mdev: reinstate VFIO_MDEV Kconfig

[Jon Kohler <jon@nutanix.com>]

Reinstate Kconfig setup for CONFIG_VFIO_MDEV to help support out of
tree drivers that use VFIO_MDEV library (e.g. Nvidia GPU drivers).

Fixes: 8bf8c5ee1f38 ("vfio-mdev: turn VFIO_MDEV into a selectable symbol")
Signed-off-by: Jon Kohler <jon@nutanix.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Rohit Shenoy <rshenoy@nvidia.com>
Cc: Tarun Gupta <targupta@nvidia.com>
Cc: Tony Krowiak <akrowiak@linux.ibm.com>
---
 drivers/vfio/mdev/Kconfig | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/mdev/Kconfig b/drivers/vfio/mdev/Kconfig
index e5fb84e07965..b5e1eb634e62 100644
--- a/drivers/vfio/mdev/Kconfig
+++ b/drivers/vfio/mdev/Kconfig
@@ -1,4 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 config VFIO_MDEV
-	tristate
+	tristate "Mediated device driver framework"
+	default n
+	help
+	  Provides a framework to virtualize devices.
+	  See Documentation/driver-api/vfio-mediated-device.rst for more details.
+
+	  If you don't know what do here, say N.
\ No newline at end of file
-- 
2.43.0