[PATCH v2 2/4] vdpa: accept VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature

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Accepting VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature if
userland sets it.

Signed-off-by: Eugenio Pérez <eperezma@xxxxxxxxxx>
Acked-by: Shannon Nelson <shannon.nelson@xxxxxxx>
---
 drivers/vhost/vdpa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index bf77924d5b60..a3204406b73d 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -680,7 +680,8 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
 			return -EFAULT;
 		if (features & ~(VHOST_VDPA_BACKEND_FEATURES |
 				 BIT_ULL(VHOST_BACKEND_F_SUSPEND) |
-				 BIT_ULL(VHOST_BACKEND_F_RESUME)))
+				 BIT_ULL(VHOST_BACKEND_F_RESUME) |
+				 BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK)))
 			return -EOPNOTSUPP;
 		if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPEND)) &&
 		     !vhost_vdpa_can_suspend(v))
-- 
2.31.1




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