diff options
| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2014-12-11 14:25:05 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-02-26 13:04:07 +0100 |
| commit | 0cd09c3a6cc2230ba38c462fc410b4acce59eb6f (patch) | |
| tree | 34ac356869acdd46eb089d491b3ee4b2240dac88 /hw/9pfs | |
| parent | a590fd5ba8f01724eee169f097f65603f0c3a8f8 (diff) | |
| download | qemu-0cd09c3a6cc2230ba38c462fc410b4acce59eb6f.zip | |
virtio: feature bit manipulation helpers
Add virtio_{add,clear}_feature helper functions for manipulating a
feature bits variable. This has some benefits over open coding:
- add check that the bit is in a sane range
- make it obvious at a glance what is going on
- have a central point to change when we want to extend feature bits
Convert existing code manipulating features to use the new helpers.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/9pfs')
| -rw-r--r-- | hw/9pfs/virtio-9p-device.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c index 2572747629..30492ecb02 100644 --- a/hw/9pfs/virtio-9p-device.c +++ b/hw/9pfs/virtio-9p-device.c @@ -23,7 +23,7 @@ static uint32_t virtio_9p_get_features(VirtIODevice *vdev, uint32_t features) { - features |= 1 << VIRTIO_9P_MOUNT_TAG; + virtio_add_feature(&features, VIRTIO_9P_MOUNT_TAG); return features; } |