linux-kernel - Re: [PATCH v3 3/3] virtio_balloon: remove the unnecessary 0-initialization

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Date:   Mon, 7 Jan 2019 15:07:38 +0100
From:   Cornelia Huck <cohuck@...hat.com>
To:     Wei Wang <wei.w.wang@...el.com>
Cc:     virtio-dev@...ts.oasis-open.org, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
        mst@...hat.com, borntraeger@...ibm.com, pbonzini@...hat.com,
        dgilbert@...hat.com, pasic@...ux.ibm.com
Subject: Re: [PATCH v3 3/3] virtio_balloon: remove the unnecessary
 0-initialization

On Mon,  7 Jan 2019 15:01:06 +0800
Wei Wang <wei.w.wang@...el.com> wrote:

> We've changed to kzalloc the vb struct, so no need to 0-initialize
> this field one more time.
> 
> Signed-off-by: Wei Wang <wei.w.wang@...el.com>
> ---
>  drivers/virtio/virtio_balloon.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
> index e33dc8e..f19061b 100644
> --- a/drivers/virtio/virtio_balloon.c
> +++ b/drivers/virtio/virtio_balloon.c
> @@ -925,7 +925,6 @@ static int virtballoon_probe(struct virtio_device *vdev)
>  						  VIRTIO_BALLOON_CMD_ID_STOP);
>  		vb->cmd_id_stop = cpu_to_virtio32(vb->vdev,
>  						  VIRTIO_BALLOON_CMD_ID_STOP);
> -		vb->num_free_page_blocks = 0;
>  		spin_lock_init(&vb->free_page_list_lock);
>  		INIT_LIST_HEAD(&vb->free_page_list);
>  		if (virtio_has_feature(vdev, VIRTIO_BALLOON_F_PAGE_POISON)) {

Reviewed-by: Cornelia Huck <cohuck@...hat.com>