From patchwork Tue Mar 15 18:34:43 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 8591581 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0C8C8C0553 for ; Tue, 15 Mar 2016 18:43:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6F51D20272 for ; Tue, 15 Mar 2016 18:43:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B7AB32026C for ; Tue, 15 Mar 2016 18:43:09 +0000 (UTC) Received: from localhost ([::1]:50664 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aftvx-00060b-4A for patchwork-qemu-devel@patchwork.kernel.org; Tue, 15 Mar 2016 14:43:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43742) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aftoA-0006g4-0h for qemu-devel@nongnu.org; Tue, 15 Mar 2016 14:35:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1afto8-0001r8-O9 for qemu-devel@nongnu.org; Tue, 15 Mar 2016 14:35:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49171) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1afto8-0001qk-Jm for qemu-devel@nongnu.org; Tue, 15 Mar 2016 14:35:04 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id 34CEDD7A45; Tue, 15 Mar 2016 18:35:04 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-46.ams2.redhat.com [10.36.116.46]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u2FIZ1C4016506 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 15 Mar 2016 14:35:02 -0400 Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 6683830052FE; Tue, 15 Mar 2016 19:34:57 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Date: Tue, 15 Mar 2016 19:34:43 +0100 Message-Id: <1458066895-20632-29-git-send-email-armbru@redhat.com> In-Reply-To: <1458066895-20632-1-git-send-email-armbru@redhat.com> References: <1458066895-20632-1-git-send-email-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 15 Mar 2016 18:35:04 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Cc: claudio.fontana@huawei.com, cam@cs.ualberta.ca, mlureau@redhat.com, david.marchand@6wind.com, pbonzini@redhat.com Subject: [Qemu-devel] [PATCH v3 28/40] ivshmem: Drop the hackish test for UNIX domain chardev X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The chardev must be capable of transmitting SCM_RIGHTS ancillary messages. We check it by comparing CharDriverState member filename to "unix:". That's almost as brittle as it is disgusting. When the actual transmission all happened asynchronously, this check was all we could do in realize(), and thus better than nothing. But now we receive at least one SCM_RIGHTS synchronously in realize(), it's not worth its keep anymore. Drop it. Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau --- hw/misc/ivshmem.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index da32a74..c1a75db 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -964,15 +964,6 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp) memory_region_add_subregion(&s->bar, 0, mr); pci_register_bar(PCI_DEVICE(s), 2, attr, &s->bar); } else if (s->server_chr != NULL) { - /* FIXME do not rely on what chr drivers put into filename */ - if (strncmp(s->server_chr->filename, "unix:", 5)) { - error_setg(errp, "chardev is not a unix client socket"); - return; - } - - /* if we get a UNIX socket as the parameter we will talk - * to the ivshmem server to receive the memory region */ - IVSHMEM_DPRINTF("using shared memory server (socket = %s)\n", s->server_chr->filename);