From: Cornelia Huck <cornelia.h...@de.ibm.com>
Several places check against the feature bit number instead of against
the feature bit. Fix them.
Cc: qemu-sta...@nongnu.org
Reported-by: Thomas Huth <th...@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.h...@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
(cherry picked from commit 91d5c57a2e98845c02cda026f3f6a88cb5e14225)
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
hw/scsi/virtio-scsi.c | 2 +-
hw/virtio/dataplane/vring.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index ef48550..a44c410 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -144,7 +144,7 @@ static int virtio_scsi_parse_req(VirtIOSCSIReq *req,
*
* TODO: always disable this workaround for virtio 1.0 devices.
*/
- if ((vdev->guest_features & VIRTIO_F_ANY_LAYOUT) == 0) {
+ if ((vdev->guest_features & (1 << VIRTIO_F_ANY_LAYOUT)) == 0) {
req_size = req->elem.out_sg[0].iov_len;
resp_size = req->elem.in_sg[0].iov_len;
}
diff --git a/hw/virtio/dataplane/vring.c b/hw/virtio/dataplane/vring.c
index 61f6d83..78c6f45 100644
--- a/hw/virtio/dataplane/vring.c
+++ b/hw/virtio/dataplane/vring.c
@@ -133,12 +133,12 @@ bool vring_should_notify(VirtIODevice *vdev, Vring *vring)
* interrupts. */
smp_mb();
- if ((vdev->guest_features & VIRTIO_F_NOTIFY_ON_EMPTY) &&
+ if ((vdev->guest_features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) &&
unlikely(vring->vr.avail->idx == vring->last_avail_idx)) {
return true;
}
- if (!(vdev->guest_features & VIRTIO_RING_F_EVENT_IDX)) {
+ if (!(vdev->guest_features & (1 << VIRTIO_RING_F_EVENT_IDX))) {
return !(vring->vr.avail->flags & VRING_AVAIL_F_NO_INTERRUPT);
}
old = vring->signalled_used;
--
1.9.1
