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[87.12.25.114]) by smtp.gmail.com with ESMTPSA id j188-20020a3755c5000000b0067d1c76a09fsm10640609qkb.74.2022.03.23.01.50.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Mar 2022 01:50:03 -0700 (PDT) From: Stefano Garzarella To: netdev@vger.kernel.org Cc: Stefan Hajnoczi , Paolo Abeni , Arseny Krasnov , "David S. Miller" , kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Stefano Garzarella , "Michael S. Tsirkin" , Asias He , Jakub Kicinski Subject: [PATCH net v2 1/3] vsock/virtio: enable VQs early on probe Date: Wed, 23 Mar 2022 09:49:52 +0100 Message-Id: <20220323084954.11769-2-sgarzare@redhat.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220323084954.11769-1-sgarzare@redhat.com> References: <20220323084954.11769-1-sgarzare@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org virtio spec requires drivers to set DRIVER_OK before using VQs. This is set automatically after probe returns, but virtio-vsock driver uses VQs in the probe function to fill rx and event VQs with new buffers. Let's fix this, calling virtio_device_ready() before using VQs in the probe function. Fixes: 0ea9e1d3a9e3 ("VSOCK: Introduce virtio_transport.ko") Signed-off-by: Stefano Garzarella --- net/vmw_vsock/virtio_transport.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 5afc194a58bb..b1962f8cd502 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -622,6 +622,8 @@ static int virtio_vsock_probe(struct virtio_device *vdev) INIT_WORK(&vsock->event_work, virtio_transport_event_work); INIT_WORK(&vsock->send_pkt_work, virtio_transport_send_pkt_work); + virtio_device_ready(vdev); + mutex_lock(&vsock->tx_lock); vsock->tx_run = true; mutex_unlock(&vsock->tx_lock);