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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05BCEC25B47 for ; Wed, 25 Oct 2023 08:30:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233459AbjJYIav (ORCPT ); Wed, 25 Oct 2023 04:30:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233015AbjJYIat (ORCPT ); Wed, 25 Oct 2023 04:30:49 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D394612A for ; Wed, 25 Oct 2023 01:30:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=P4XSy/YvVHFxjXEJLsAb+7LdawcWCHaLn+KdqlWEZSs=; b=Yx4KvI9Rx53tUJkbz3FWtgTrRx N4eQHVdDOj2sYZxMoczk3R3USHGcgEfK/yL79ZQz5j0wUIJbx5NVjdaHA9cQ4DCt1wR/G8ktTb3n7 iWik3wndJlJR8DmQUi70+LwEvK/KfEi3U0IXgJJtkT+JOiC7ea5uVfY0dVle7jrn3iqyFa+LFetnV 4LBbnUhXh8e15ICj5ROkX5RHDk9tMcyxLPJPg3K9JmLzz2YGI5IEuMHXsiri6lJeiUx9YqDXvZsjD DbBMJGQljpTc10XddbtyWYpKeswEPjr8PuX+VdWmZPWlwr+tEpCDa43/pEtLno6O7aQ4abqHA8TDd WH1a+bUg==; Received: from [2001:8b0:10b:5:758e:a1c4:bc7:e7a7] (helo=u3832b3a9db3152.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1qvZHT-007fSv-Nj; Wed, 25 Oct 2023 08:30:23 +0000 Message-ID: Subject: Re: [PATCH 06/12] hw/xen: add get_frontend_path() method to XenDeviceClass From: David Woodhouse To: paul@xen.org, qemu-devel@nongnu.org Cc: Kevin Wolf , Hanna Reitz , Stefano Stabellini , Anthony Perard , =?ISO-8859-1?Q?Marc-Andr=E9?= Lureau , Paolo Bonzini , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Eduardo Habkost , Marcelo Tosatti , qemu-block@nongnu.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org Date: Wed, 25 Oct 2023 09:30:23 +0100 In-Reply-To: References: <20231016151909.22133-1-dwmw2@infradead.org> <20231016151909.22133-7-dwmw2@infradead.org> <5ef43a7c-e535-496d-8a14-bccbadab3bc0@xen.org> <55bb6967-9499-45ef-b4c8-00fbfaccef0d@xen.org> <4d059cb96a92004fe25fdb140a6c0b12e91b4d7e.camel@infradead.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-BOki3fyIIs+vqC8AMBCA" User-Agent: Evolution 3.44.4-0ubuntu2 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org --=-BOki3fyIIs+vqC8AMBCA Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2023-10-24 at 14:37 +0100, Paul Durrant wrote: >=20 > > > Ok, but a prepend to say that a lack of path there means we skip > > > frontend creation seems reasonable? > >=20 > > No, it *is* returning an error. Perhaps I can make it > >=20 >=20 > I understand it is returning an error. I thought the point of the=20 > cascading error handling was to prepend text at each (meaningful) layer= =20 > such that the eventual message conveyed what failed and also what the > consequences of that failure were. Oh, I see. 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