[Qemu-block] [PATCH 09/40] vring: make vring_enable_notification return void

[Paolo Bonzini]

Make the API more similar to the regular virtqueue API.

Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/block/dataplane/virtio-blk.c     | 3 ++-
 hw/virtio/dataplane/vring.c         | 3 +--
 include/hw/virtio/dataplane/vring.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index 0cadd3a..ace36f5 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -126,7 +126,8 @@ static void handle_notify(EventNotifier *e)
             /* Re-enable guest->host notifies and stop processing the vring.
              * But if the guest has snuck in more descriptors, keep processing.
              */
-            if (vring_enable_notification(s->vdev, &s->vring)) {
+            vring_enable_notification(s->vdev, &s->vring);
+            if (!vring_more_avail(s->vdev, &s->vring)) {
                 break;
             }
         } else { /* fatal error */
diff --git a/hw/virtio/dataplane/vring.c b/hw/virtio/dataplane/vring.c
index d6b8ba9..4e1a299 100644
--- a/hw/virtio/dataplane/vring.c
+++ b/hw/virtio/dataplane/vring.c
@@ -174,7 +174,7 @@ void vring_disable_notification(VirtIODevice *vdev, Vring 
*vring)
  *
  * Return true if the vring is empty, false if there are more requests.
  */
-bool vring_enable_notification(VirtIODevice *vdev, Vring *vring)
+void vring_enable_notification(VirtIODevice *vdev, Vring *vring)
 {
     if (virtio_vdev_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX)) {
         vring_avail_event(&vring->vr) = vring->vr.avail->idx;
@@ -182,7 +182,6 @@ bool vring_enable_notification(VirtIODevice *vdev, Vring 
*vring)
         vring_clear_used_flags(vdev, vring, VRING_USED_F_NO_NOTIFY);
     }
     smp_mb(); /* ensure update is seen before reading avail_idx */
-    return !vring_more_avail(vdev, vring);
 }
 
 /* This is stolen from linux/drivers/vhost/vhost.c:vhost_notify() */
diff --git a/include/hw/virtio/dataplane/vring.h 
b/include/hw/virtio/dataplane/vring.h
index e80985e..e1c2a65 100644
--- a/include/hw/virtio/dataplane/vring.h
+++ b/include/hw/virtio/dataplane/vring.h
@@ -42,7 +42,7 @@ static inline void vring_set_broken(Vring *vring)
 bool vring_setup(Vring *vring, VirtIODevice *vdev, int n);
 void vring_teardown(Vring *vring, VirtIODevice *vdev, int n);
 void vring_disable_notification(VirtIODevice *vdev, Vring *vring);
-bool vring_enable_notification(VirtIODevice *vdev, Vring *vring);
+void vring_enable_notification(VirtIODevice *vdev, Vring *vring);
 bool vring_should_notify(VirtIODevice *vdev, Vring *vring);
 void *vring_pop(VirtIODevice *vdev, Vring *vring, size_t sz);
 void vring_push(VirtIODevice *vdev, Vring *vring, VirtQueueElement *elem,
-- 
1.8.3.1