linux-kernel - Re: [PATCH v2 5/8] tools/virtio: Use __vring_new_virtqueue in virtio

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Date:   Thu, 16 Apr 2020 18:32:56 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Eugenio Pérez <eperezma@...hat.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        "virtualization@...ts.linux-foundation.org" 
        <virtualization@...ts.linux-foundation.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        kvm list <kvm@...r.kernel.org>,
        Cornelia Huck <cohuck@...hat.com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 5/8] tools/virtio: Use __vring_new_virtqueue in
 virtio_test.c

On Thu, Apr 16, 2020 at 09:56:40AM +0200, Eugenio Pérez wrote:
> As updated in ("2a2d1382fe9d virtio: Add improved queue allocation API")
> 
> Signed-off-by: Eugenio Pérez <eperezma@...hat.com>

Pls add motivation for these changes.

> ---
>  tools/virtio/virtio_test.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
> index 1d5144590df6..d9827b640c21 100644
> --- a/tools/virtio/virtio_test.c
> +++ b/tools/virtio/virtio_test.c
> @@ -106,10 +106,9 @@ static void vq_info_add(struct vdev_info *dev, int num)
>  	assert(r >= 0);
>  	memset(info->ring, 0, vring_legacy_size(num, 4096));
>  	vring_legacy_init(&info->vring, num, info->ring, 4096);
> -	info->vq = vring_new_virtqueue(info->idx,
> -				       info->vring.num, 4096, &dev->vdev,
> -				       true, false, info->ring,
> -				       vq_notify, vq_callback, "test");
> +	info->vq =
> +		__vring_new_virtqueue(info->idx, info->vring, &dev->vdev, true,
> +				      false, vq_notify, vq_callback, "test");
>  	assert(info->vq);
>  	info->vq->priv = info;
>  	vhost_vq_setup(dev, info);
> -- 
> 2.18.1