From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id B19181B180; Mon, 8 Oct 2018 17:26:30 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0462C11530; Mon, 8 Oct 2018 15:26:30 +0000 (UTC) Received: from localhost.localdomain (ovpn-112-51.ams2.redhat.com [10.36.112.51]) by smtp.corp.redhat.com (Postfix) with ESMTP id B619C170FE; Mon, 8 Oct 2018 15:26:26 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com, nicknickolaev@gmail.com, i.maximets@samsung.com, bruce.richardson@intel.com, alejandro.lucero@netronome.com Cc: dgilbert@redhat.com, stable@dpdk.org, Maxime Coquelin Date: Mon, 8 Oct 2018 17:25:42 +0200 Message-Id: <20181008152557.14275-5-maxime.coquelin@redhat.com> In-Reply-To: <20181008152557.14275-1-maxime.coquelin@redhat.com> References: <20181008152557.14275-1-maxime.coquelin@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Mon, 08 Oct 2018 15:26:30 +0000 (UTC) Subject: [dpdk-stable] [PATCH v4 04/19] vhost: fix payload size of reply X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Oct 2018 15:26:31 -0000 QEMU doesn't expect any payload for the reply of VHOST_USER_SET_LOG_BASE request, so don't send any. Note that the Vhost-user specification isn't clear about it and would need to be fixed. Fixes: 54f9e32305d4 ("vhost: handle dirty pages logging request") Cc: stable@dpdk.org Reported-by: Ilya Maximets Signed-off-by: Maxime Coquelin Acked-by: Ilya Maximets --- lib/librte_vhost/vhost_user.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 7f3e86778..71a0e7dd7 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -1296,7 +1296,11 @@ vhost_user_set_log_base(struct virtio_net **pdev, struct VhostUserMsg *msg) dev->log_base = dev->log_addr + off; dev->log_size = size; - msg->size = sizeof(msg->payload.u64); + /* + * The spec is not clear about it (yet), but QEMU doesn't expect + * any payload in the reply. + */ + msg->size = 0; return VH_RESULT_REPLY; } -- 2.17.1