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| author | Michael S. Tsirkin <mst@redhat.com> | 2014-10-24 14:08:18 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-12-09 12:05:28 +0200 |
| commit | bd82752a831bc3c7a66b59572f82e06154f19e27 (patch) | |
| tree | a050cd50eb8cc237fa1c2d161d16627fab799a99 /drivers/vhost | |
| parent | 9465a7a6f12c2b5315c4070e50209a3b04eaf224 (diff) | |
| download | linux-bd82752a831bc3c7a66b59572f82e06154f19e27.tar.gz linux-bd82752a831bc3c7a66b59572f82e06154f19e27.tar.bz2 linux-bd82752a831bc3c7a66b59572f82e06154f19e27.zip | |
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')
| -rw-r--r-- | drivers/vhost/vhost.h | 6 |
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 |