On Wed, Jun 22, 2022 at 03:50:52AM -0400, Deming Wang wrote:
> It passes '_vq' to virtqueue_use_indirect(), which still calls
> to_vvq to get 'vq', let's directly pass 'vq'. It can avoid
> unnecessary call of to_vvq in hot path.
>
> Signed-off-by: Deming Wang <wangdeming@xxxxxxxxxx>
I do not see the point of any of these patches. Sorry.
If this is supposed to be an optimization, post some numbers pls.
> ---
> drivers/virtio/virtio_ring.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
> index 13a7348cedff..af2b7785ed77 100644
> --- a/drivers/virtio/virtio_ring.c
> +++ b/drivers/virtio/virtio_ring.c
> @@ -1475,10 +1475,8 @@ static void *virtqueue_get_buf_ctx_packed(struct virtqueue *_vq,
> return ret;
> }
>
> -static void virtqueue_disable_cb_packed(struct virtqueue *_vq)
> +static void virtqueue_disable_cb_packed(struct vring_virtqueue *vq)
> {
> - struct vring_virtqueue *vq = to_vvq(_vq);
> -
> if (vq->packed.event_flags_shadow != VRING_PACKED_EVENT_FLAG_DISABLE) {
> vq->packed.event_flags_shadow = VRING_PACKED_EVENT_FLAG_DISABLE;
> vq->packed.vring.driver->flags =
> @@ -2007,7 +2005,7 @@ void virtqueue_disable_cb(struct virtqueue *_vq)
> return;
>
> if (vq->packed_ring)
> - virtqueue_disable_cb_packed(_vq);
> + virtqueue_disable_cb_packed(vq);
> else
> virtqueue_disable_cb_split(_vq);
> }
> --
> 2.27.0
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