[PATCH v11 15/40] virtio_ring: packed: introduce vring_free_packed

Xuan Zhuo
2022-06-29T06:57:51Z

Free the structure struct vring_vritqueue_packed.

Subsequent patches require it.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
drivers/virtio/virtio_ring.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 1aaa1e5f9991..4f497b6f2d04 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1830,6 +1830,27 @@ static struct vring_desc_extra *vring_alloc_desc_extra(unsigned int num)
return desc_extra;
}

+static void vring_free_packed(struct vring_virtqueue_packed *vring,
+ struct virtio_device *vdev)
+{
+ if (vring->vring.desc)
+ vring_free_queue(vdev, vring->ring_size_in_bytes,
+ vring->vring.desc, vring->ring_dma_addr);
+
+ if (vring->vring.driver)
+ vring_free_queue(vdev, vring->event_size_in_bytes,
+ vring->vring.driver,
+ vring->driver_event_dma_addr);
+
+ if (vring->vring.device)
+ vring_free_queue(vdev, vring->event_size_in_bytes,
+ vring->vring.device,
+ vring->device_event_dma_addr);
+
+ kfree(vring->desc_state);
+ kfree(vring->desc_extra);
+}
+
static struct virtqueue *vring_create_virtqueue_packed(
unsigned int index,
unsigned int num,
--
2.31.0