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authorCornelia Huck <cornelia.huck@de.ibm.com>2014-12-11 14:25:05 +0100
committerMichael S. Tsirkin <mst@redhat.com>2015-02-26 13:04:07 +0100
commit0cd09c3a6cc2230ba38c462fc410b4acce59eb6f (patch)
tree34ac356869acdd46eb089d491b3ee4b2240dac88 /hw/char
parenta590fd5ba8f01724eee169f097f65603f0c3a8f8 (diff)
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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/char')
-rw-r--r--hw/char/virtio-serial-bus.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
index a2bac9b..2365336 100644
--- a/hw/char/virtio-serial-bus.c
+++ b/hw/char/virtio-serial-bus.c
@@ -475,7 +475,7 @@ static uint32_t get_features(VirtIODevice *vdev, uint32_t features)
vser = VIRTIO_SERIAL(vdev);
if (vser->bus.max_nr_ports > 1) {
- features |= (1 << VIRTIO_CONSOLE_F_MULTIPORT);
+ virtio_add_feature(&features, VIRTIO_CONSOLE_F_MULTIPORT);
}
return features;
}