From patchwork Tue Feb 13 16:32:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 10216671 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 75ECC601C2 for ; Tue, 13 Feb 2018 16:32:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 68CDF28EB5 for ; Tue, 13 Feb 2018 16:32:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5E17128EC7; Tue, 13 Feb 2018 16:32:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CBFC628EAE for ; Tue, 13 Feb 2018 16:32:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965137AbeBMQcL (ORCPT ); Tue, 13 Feb 2018 11:32:11 -0500 Received: from mga11.intel.com ([192.55.52.93]:28330 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965107AbeBMQcI (ORCPT ); Tue, 13 Feb 2018 11:32:08 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2018 08:32:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,508,1511856000"; d="scan'208";a="27462686" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga003.jf.intel.com with ESMTP; 13 Feb 2018 08:32:04 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id A84C917D; Tue, 13 Feb 2018 18:32:00 +0200 (EET) From: Mika Westerberg To: Bjorn Helgaas , "Rafael J. Wysocki" Cc: Len Brown , Mario.Limonciello@dell.com, Michael Jamet , Yehezkel Bernat , Mika Westerberg , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH 5/5] ACPI / hotplug / PCI: Mark stale PCI devices disconnected Date: Tue, 13 Feb 2018 19:32:00 +0300 Message-Id: <20180213163200.8787-6-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180213163200.8787-1-mika.westerberg@linux.intel.com> References: <20180213163200.8787-1-mika.westerberg@linux.intel.com> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Following PCIehp mark the unplugged PCI devices disconnected. This makes sure PCI core code leaves the now missing hardware registers alone. Signed-off-by: Mika Westerberg Reviewed-by: Rafael J. Wysocki --- drivers/pci/hotplug/acpiphp_glue.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 5efa21cdddc9..0aef35ee665a 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -651,6 +651,11 @@ static void trim_stale_devices(struct pci_dev *dev) alive = pci_device_is_present(dev); if (!alive) { + pci_dev_set_disconnected(dev, NULL); + if (pci_has_subordinate(dev)) + pci_walk_bus(dev->subordinate, pci_dev_set_disconnected, + NULL); + pci_stop_and_remove_bus_device(dev); if (adev) acpi_bus_trim(adev);