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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=unavailable 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 D337EC41518 for ; Wed, 23 Jan 2019 16:45:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FCF02085A for ; Wed, 23 Jan 2019 16:45:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726361AbfAWQpB (ORCPT ); Wed, 23 Jan 2019 11:45:01 -0500 Received: from mx3.molgen.mpg.de ([141.14.17.11]:37445 "EHLO mx1.molgen.mpg.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725871AbfAWQpA (ORCPT ); Wed, 23 Jan 2019 11:45:00 -0500 Received: from keineahnung.molgen.mpg.de (keineahnung.molgen.mpg.de [141.14.17.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: pmenzel) by mx.molgen.mpg.de (Postfix) with ESMTPSA id 246B120135342E; Wed, 23 Jan 2019 17:44:58 +0100 (CET) Subject: [PATCH v2] ipmi:pci: Blacklist a Realtek "IPMI" device To: Greg KH Cc: stable@vger.kernel.org, openipmi-developer@lists.sourceforge.net, LKML , it+lkml@molgen.mpg.de References: <8520014d-6805-ce87-143d-fffbeb94d11d@molgen.mpg.de> <78de72f8-e218-f91f-97b2-768ff5a920e4@acm.org> <9ca94005-e2e4-cd5a-67bd-30c3d8680281@molgen.mpg.de> <20190123163211.GA31955@kroah.com> From: Paul Menzel Message-ID: Date: Wed, 23 Jan 2019 17:44:57 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190123163211.GA31955@kroah.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms080000080507070506000708" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms080000080507070506000708 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable From: Corey Minyard Date: Thu, 15 Feb 2018 16:58:26 -0600 [ upstream commit bc48fa1b9d3b04106055b27078da824cd209865a ] Realtek has some sort of "Virtual" IPMI device on the PCI bus as a KCS controller, but whatever it is, it's not one. Ignore it if seen. Reported-by: Chris Chiu Signed-off-by: Corey Minyard Tested-by: Daniel Drake [ Commit 13d0b35c (ipmi_si: Move PCI setup to another file) from Linux 4.15-rc1 has not been back ported, so the PCI code is still in `drivers/char/ipmi/ipmi_si_intf.c`, requiring to apply the commit manually. This fixes a 100 s boot delay on the HP EliteDesk 705 G4 MT with Linux 4.14.94. ] Signed-off-by: Paul Menzel --- v2: Use tabs. Sorry for messing that up. drivers/char/ipmi/ipmi_si_intf.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si= _intf.c index c04aa11f0e21..a106cf7b5ee0 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2447,6 +2447,15 @@ static int ipmi_pci_probe_regspacing(struct smi_in= fo *info) return DEFAULT_REGSPACING; } =20 +static struct pci_device_id ipmi_pci_blacklist[] =3D { + /* + * This is a "Virtual IPMI device", whatever that is. It appears + * as a KCS device by the class, but it is not one. + */ + { PCI_VDEVICE(REALTEK, 0x816c) }, + { 0, } +}; + static int ipmi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -2454,6 +2463,9 @@ static int ipmi_pci_probe(struct pci_dev *pdev, int class_type =3D pdev->class & PCI_ERMC_CLASSCODE_TYPE_MASK; struct smi_info *info; =20 + if (pci_match_id(ipmi_pci_blacklist, pdev)) + return -ENODEV; + info =3D smi_info_alloc(); if (!info) return -ENOMEM; --=20 2.17.1 --------------ms080000080507070506000708 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC EFowggUSMIID+qADAgECAgkA4wvV+K8l2YEwDQYJKoZIhvcNAQELBQAwgYIxCzAJBgNVBAYT AkRFMSswKQYDVQQKDCJULVN5c3RlbXMgRW50ZXJwcmlzZSBTZXJ2aWNlcyBHbWJIMR8wHQYD 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