Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753279AbaJFPH6 (ORCPT ); Mon, 6 Oct 2014 11:07:58 -0400 Received: from mx1.redhat.com ([209.132.183.28]:1600 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752950AbaJFPHy (ORCPT ); Mon, 6 Oct 2014 11:07:54 -0400 Date: Mon, 6 Oct 2014 18:11:19 +0300 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, Rusty Russell , virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH v2 11/15] virtio_net: enable VQs early Message-ID: <1412608214-31944-12-git-send-email-mst@redhat.com> References: <1412608214-31944-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1412608214-31944-1-git-send-email-mst@redhat.com> X-Mutt-Fcc: =sent Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org virtio spec requires drivers to set DRIVER_OK before using VQs. This is set automatically after probe returns, virtio net violated this rule by using receive VQs within probe. To fix, call virtio_enable_vqs_early before using VQs. Signed-off-by: Michael S. Tsirkin --- drivers/net/virtio_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index ef04d23..430f3ae 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1792,6 +1792,8 @@ static int virtnet_probe(struct virtio_device *vdev) goto free_vqs; } + virtio_enable_vqs_early(vdev); + /* Last of all, set up some receive buffers. */ for (i = 0; i < vi->curr_queue_pairs; i++) { try_fill_recv(&vi->rq[i], GFP_KERNEL); -- MST -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/