From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BABD2C43334 for ; Mon, 3 Sep 2018 18:07:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6803E20843 for ; Mon, 3 Sep 2018 18:07:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6803E20843 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=altlinux.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727557AbeICW2e (ORCPT ); Mon, 3 Sep 2018 18:28:34 -0400 Received: from vmicros1.altlinux.org ([194.107.17.57]:54894 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727338AbeICW2e (ORCPT ); Mon, 3 Sep 2018 18:28:34 -0400 X-Greylist: delayed 468 seconds by postgrey-1.27 at vger.kernel.org; Mon, 03 Sep 2018 18:28:33 EDT Received: from imap.altlinux.org (imap.altlinux.org [194.107.17.38]) by vmicros1.altlinux.org (Postfix) with ESMTP id 1F44A72CA5E; Mon, 3 Sep 2018 20:59:28 +0300 (MSK) Received: from glebfm.cloud.tilaa.com (glebfm.cloud.tilaa.com [84.22.98.219]) by imap.altlinux.org (Postfix) with ESMTPSA id A28114A4A2A; Mon, 3 Sep 2018 20:59:27 +0300 (MSK) Date: Mon, 3 Sep 2018 20:59:13 +0300 From: Gleb Fotengauer-Malinovskiy To: "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition Message-ID: <20180903175906.GA11529@glebfm.cloud.tilaa.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The _IOC_READ flag fits this ioctl request more because this request actually only writes to, but doesn't read from userspace. See NOTEs in include/uapi/asm-generic/ioctl.h for more information. Fixes: 429711aec282 ("vhost: switch to use new message format") Signed-off-by: Gleb Fotengauer-Malinovskiy --- include/uapi/linux/vhost.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index b1e22c40c4b6..84c3de89696a 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -176,7 +176,7 @@ struct vhost_memory { #define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1 #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) -#define VHOST_GET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x26, __u64) +#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) /* VHOST_NET specific defines */ -- glebfm