[PATCH v5 27/45] vhost: make features 64 bit
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2014-11-27 12:41:15
Also in:
kvm, lkml, netdev
Subsystem:
the rest, virtio host (vhost) · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
We need to use bit 32 for virtio 1.0 Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/vhost/vhost.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 3eda654..c624b09 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h@@ -106,7 +106,7 @@ struct vhost_virtqueue { /* Protected by virtqueue mutex. */ struct vhost_memory *memory; void *private_data; - unsigned acked_features; + u64 acked_features; /* Log write descriptors */ void __user *log_base; struct vhost_log *log;
@@ -174,6 +174,6 @@ enum { static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit) { - return vq->acked_features & (1 << bit); + return vq->acked_features & (1ULL << bit); } #endif
--
MST