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 C2D34C433EF for ; Wed, 23 Mar 2022 12:43:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236342AbiCWMpY (ORCPT ); Wed, 23 Mar 2022 08:45:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230499AbiCWMpX (ORCPT ); Wed, 23 Mar 2022 08:45:23 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C71B174869; Wed, 23 Mar 2022 05:43:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=DNaBiNCRgo3LxVBYAroLjb5+BV4mgxafEzFYigMlq2U=; b=Hpc8VJy6XHNmQsn6oLUFr525R6 y5xiKfgYcmyTdyaiw85NRPUbM3brnb1PH+I2y+TNztvnpEaS1ZvkrAQRoP3uCxtSdh9wADNqxKmKj oezargZU0JkK2KzvbOKbnicD7ZeonADmNeZv2jrUGJqCv/NddVHDGIoek1nOEJv2OkioZuunvVWm7 g06fEHK0mJx+XxYlL7WZS4gVKJiZZ6fmaqiu+DwNVdn8vM3iESYhpS38iobVx0OEWTUmnlhWJmz9i 57g2/wkftCUmyNhRNwProIQ4qzDAEUlw2ai01L7GSE+vMtwV3rkgkvmOzLgqcDW5IYK4pkR4Zg2cF kwC0rOpQ==; Received: from [2001:8b0:10b:1:4a2a:e3ff:fe14:8625] (helo=u3832b3a9db3152.ant.amazon.com) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nX0L7-003lQh-UN; Wed, 23 Mar 2022 12:43:50 +0000 Message-ID: Subject: Re: [PATCH] PCI: Avoid broken MSI on SB600 USB devices From: David Woodhouse To: Andy Shevchenko , Bjorn Helgaas Cc: linux-pci , Linux Kernel Mailing List , Mick Lorain , Alex Williamson , Thomas Gleixner , Bjorn Helgaas Date: Wed, 23 Mar 2022 12:43:48 +0000 In-Reply-To: References: <20220321183446.1108325-1-helgaas@kernel.org> <20220323022648.GA1243295@bhelgaas> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-uhusbg0yv0QWas8vslyr" User-Agent: Evolution 3.36.5-0ubuntu1 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by desiato.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-uhusbg0yv0QWas8vslyr Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2022-03-23 at 10:03 +0200, Andy Shevchenko wrote: > On Wed, Mar 23, 2022 at 4:26 AM Bjorn Helgaas wrote: >=20 > > On Mon, Mar 21, 2022 at 01:34:46PM -0500, Bjorn Helgaas wrote: > > > From: Bjorn Helgaas > > > Some ATI SB600 USB adapters advertise MSI, but if INTx is disabled by > > > setting PCI_COMMAND_INTX_DISABLE, >=20 > > > MSI doesn't work either. >=20 > I think this is not correct. I think it was perfectly correct until you added a couple of newlines in the middle of the sentence, then took it out of context. :) "If INTX is disabled, MSI doesn't work either". But really, in that case surely the solution is *not* to disable INTX for this device. 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