[PATCH] vhost: Fix warnings and bad type handling

[Alan Cox]

Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
---

 drivers/vhost/vhost.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)


diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 97233d5..46b20f7 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -334,7 +334,10 @@ static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp)
 			r = -EINVAL;
 			break;
 		}
-		r = init_used(vq, (struct vring_used __user *)a.used_user_addr);
+		/* For 32bit we will ignore the top 32bits of the user
+		   data */
+		r = init_used(vq, (struct vring_used __user *)(unsigned long)
+						a.used_user_addr);
 		if (r)
 			break;
 		vq->log_used = !!(a.flags & (0x1 << VHOST_VRING_F_LOG));

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