From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:57278 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754944AbeD3TXw (ORCPT ); Mon, 30 Apr 2018 15:23:52 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Michael S. Tsirkin" Subject: [PATCH 3.18 11/25] virtio: add ability to iterate over vqs Date: Mon, 30 Apr 2018 12:23:18 -0700 Message-Id: <20180430183911.285094449@linuxfoundation.org> In-Reply-To: <20180430183910.801976983@linuxfoundation.org> References: <20180430183910.801976983@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Michael S. Tsirkin commit 24a7e4d20783c0514850f24a5c41ede46ab058f0 upstream. For cleanup it's helpful to be able to simply scan all vqs and discard all data. Add an iterator to do that. Cc: stable@vger.kernel.org Signed-off-by: Michael S. Tsirkin Signed-off-by: Greg Kroah-Hartman --- include/linux/virtio.h | 3 +++ 1 file changed, 3 insertions(+) --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -122,6 +122,9 @@ int virtio_device_freeze(struct virtio_d int virtio_device_restore(struct virtio_device *dev); #endif +#define virtio_device_for_each_vq(vdev, vq) \ + list_for_each_entry(vq, &vdev->vqs, list) + /** * virtio_driver - operations for a virtio I/O driver * @driver: underlying device driver (populate name and owner).