From owner-svn-src-head@freebsd.org Mon Nov 28 07:04:33 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A73B2C58AB2; Mon, 28 Nov 2016 07:04:33 +0000 (UTC) (envelope-from sephe@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 76BD31E9B; Mon, 28 Nov 2016 07:04:33 +0000 (UTC) (envelope-from sephe@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id uAS74W8m030145; Mon, 28 Nov 2016 07:04:32 GMT (envelope-from sephe@FreeBSD.org) Received: (from sephe@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uAS74WeJ030144; Mon, 28 Nov 2016 07:04:32 GMT (envelope-from sephe@FreeBSD.org) Message-Id: <201611280704.uAS74WeJ030144@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: sephe set sender to sephe@FreeBSD.org using -f From: Sepherosa Ziehau Date: Mon, 28 Nov 2016 07:04:32 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r309237 - head/sys/dev/hyperv/vmbus X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Nov 2016 07:04:33 -0000 Author: sephe Date: Mon Nov 28 07:04:32 2016 New Revision: 309237 URL: https://svnweb.freebsd.org/changeset/base/309237 Log: hyperv/vmbus: Stringent GPADL parameter assertion. MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8632 Modified: head/sys/dev/hyperv/vmbus/vmbus_chan.c Modified: head/sys/dev/hyperv/vmbus/vmbus_chan.c ============================================================================== --- head/sys/dev/hyperv/vmbus/vmbus_chan.c Mon Nov 28 06:53:00 2016 (r309236) +++ head/sys/dev/hyperv/vmbus/vmbus_chan.c Mon Nov 28 07:04:32 2016 (r309237) @@ -502,11 +502,7 @@ vmbus_chan_gpadl_connect(struct vmbus_ch int page_count, range_len, i, cnt, error; uint64_t page_id; - /* - * Reset GPADL, so that the result would consistent, if error - * happened later on. - */ - *gpadl0 = 0; + KASSERT(*gpadl0 == 0, ("GPADL is not zero")); /* * Preliminary checks. @@ -652,6 +648,8 @@ vmbus_chan_gpadl_disconnect(struct vmbus struct vmbus_chanmsg_gpadl_disconn *req; int error; + KASSERT(gpadl != 0, ("GPADL is zero")); + mh = vmbus_msghc_get(sc, sizeof(*req)); if (mh == NULL) { vmbus_chan_printf(chan,