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[Qemu-devel] [PATCH 4/5] virtio-balloon: remove layout assumptions
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PATCH 4/5] virtio-balloon: remove layout assumptions |
Date: |
Thu, 18 Mar 2010 09:21:47 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
use container_of to remove assumption that vdev
is 1st member of structure.
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/virtio-balloon.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/virtio-balloon.c b/hw/virtio-balloon.c
index 5a3be22..f80f6d0 100644
--- a/hw/virtio-balloon.c
+++ b/hw/virtio-balloon.c
@@ -43,7 +43,7 @@ typedef struct VirtIOBalloon
static VirtIOBalloon *to_virtio_balloon(VirtIODevice *vdev)
{
- return (VirtIOBalloon *)vdev;
+ return container_of(vdev, VirtIOBalloon, vdev);
}
static void balloon_page(void *addr, int deflate)
@@ -165,7 +165,7 @@ static void complete_stats_request(VirtIOBalloon *vb)
static void virtio_balloon_receive_stats(VirtIODevice *vdev, VirtQueue *vq)
{
- VirtIOBalloon *s = DO_UPCAST(VirtIOBalloon, vdev, vdev);
+ VirtIOBalloon *s = to_virtio_balloon(vdev);
VirtQueueElement *elem = &s->stats_vq_elem;
VirtIOBalloonStat stat;
size_t offset = 0;
--
1.7.0.2.280.gc6f05
- [Qemu-devel] [PATCH 0/5] virtio: cleanup layout assumptions, Michael S. Tsirkin, 2010/03/18
- [Qemu-devel] [PATCH 1/5] virtio: add type safe API, Michael S. Tsirkin, 2010/03/18
- [Qemu-devel] [PATCH 2/5] virtio-net: remove layout assumptions, Michael S. Tsirkin, 2010/03/18
- [Qemu-devel] [PATCH 3/5] virtio-serial: remove struct layout assumptions, Michael S. Tsirkin, 2010/03/18
- [Qemu-devel] [PATCH 4/5] virtio-balloon: remove layout assumptions,
Michael S. Tsirkin <=
- [Qemu-devel] [PATCH 5/5] virtio-blk: remove layout assumption, Michael S. Tsirkin, 2010/03/18
- [Qemu-devel] Re: [PATCH 0/5] virtio: cleanup layout assumptions, Juan Quintela, 2010/03/18