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authorMichael S. Tsirkin <mst@redhat.com>2014-10-24 15:08:18 +0400
committerMichael S. Tsirkin <mst@redhat.com>2014-12-09 13:05:28 +0300
commitbd82752a831bc3c7a66b59572f82e06154f19e27 (patch)
treea050cd50eb8cc237fa1c2d161d16627fab799a99 /drivers/vhost/vhost.h
parent9465a7a6f12c2b5315c4070e50209a3b04eaf224 (diff)
downloadlinux-bd82752a831bc3c7a66b59572f82e06154f19e27.tar.xz
vhost: make features 64 bit
We need to use bit 32 for virtio 1.0. Make vhost_has_feature bool to avoid discarding high bits. Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
-rw-r--r--drivers/vhost/vhost.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 3eda654b8f5a..55a95c976f48 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;
@@ -172,8 +172,8 @@ enum {
(1ULL << VHOST_F_LOG_ALL),
};
-static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit)
+static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
{
- return vq->acked_features & (1 << bit);
+ return vq->acked_features & (1ULL << bit);
}
#endif