From patchwork Thu May 10 18:28:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 10392215 X-Patchwork-Delegate: bhelgaas@google.com 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 78F096053D for ; Thu, 10 May 2018 18:29:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 691F428AA0 for ; Thu, 10 May 2018 18:29:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5DF0328AD0; Thu, 10 May 2018 18:29:01 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, 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 1839F28AA0 for ; Thu, 10 May 2018 18:29:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757292AbeEJS25 (ORCPT ); Thu, 10 May 2018 14:28:57 -0400 Received: from mga06.intel.com ([134.134.136.31]:20073 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757438AbeEJS2y (ORCPT ); Thu, 10 May 2018 14:28:54 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 May 2018 11:28:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,386,1520924400"; d="scan'208";a="54121407" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 10 May 2018 11:28:50 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 75A37314; Thu, 10 May 2018 21:28:45 +0300 (EEST) From: Mika Westerberg To: Bjorn Helgaas , "Rafael J . Wysocki" Cc: Len Brown , Mario.Limonciello@dell.com, Michael Jamet , Yehezkel Bernat , Andy Shevchenko , Lukas Wunner , Mika Westerberg , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v6 08/12] ACPI / hotplug / PCI: Mark stale PCI devices disconnected Date: Thu, 10 May 2018 21:28:40 +0300 Message-Id: <20180510182844.77349-9-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180510182844.77349-1-mika.westerberg@linux.intel.com> References: <20180510182844.77349-1-mika.westerberg@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@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 Reviewed-by: Andy Shevchenko --- 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 a8286058f490..db256bb2bd6a 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -649,6 +649,11 @@ 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);