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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>,
	Mario.Limonciello@dell.com,
	Michael Jamet <michael.jamet@intel.com>,
	Yehezkel Bernat <YehezkelShB@gmail.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Lukas Wunner <lukas@wunner.de>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH v5 5/9] ACPI / hotplug / PCI: Mark stale PCI devices disconnected
Date: Mon, 16 Apr 2018 13:34:49 +0300	[thread overview]
Message-ID: <20180416103453.46232-6-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20180416103453.46232-1-mika.westerberg@linux.intel.com>

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 <mika.westerberg@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 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);
-- 
2.16.3


  parent reply	other threads:[~2018-04-16 10:34 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-16 10:34 [PATCH v5 0/9] PCI: Fixes and cleanups for native PCIe and ACPI hotplug Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 1/9] PCI: Take all bridges into account when calculating bus numbers for extension Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 2/9] PCI: Take bridge window alignment into account when distributing resources Mika Westerberg
2018-04-25 22:38   ` Bjorn Helgaas
2018-04-26 12:23     ` Mika Westerberg
2018-05-01 20:32       ` Bjorn Helgaas
2018-05-03 12:39         ` Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 3/9] PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume Mika Westerberg
2018-05-01 21:52   ` Bjorn Helgaas
2018-05-02 11:55     ` Mika Westerberg
2018-05-02 13:41       ` Bjorn Helgaas
2018-05-03 10:42         ` Mika Westerberg
2018-05-03 23:01           ` Bjorn Helgaas
2018-05-04  7:20             ` Mika Westerberg
2018-05-30 10:40             ` Lukas Wunner
2018-05-30 13:27               ` Mika Westerberg
2018-05-04  7:18     ` Lukas Wunner
2018-05-04  8:02       ` Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 4/9] ACPI / hotplug / PCI: Do not scan all bridges when native PCIe hotplug is used Mika Westerberg
     [not found]   ` <20180502204932.GG11698@bhelgaas-glaptop.roam.corp.google.com>
2018-05-03 10:22     ` Mika Westerberg
2018-05-05  0:04       ` Bjorn Helgaas
2018-05-07 11:34         ` Mika Westerberg
2018-05-07 20:37           ` Bjorn Helgaas
2018-04-16 10:34 ` Mika Westerberg [this message]
2018-04-16 10:34 ` [PATCH v5 6/9] PCI: Move resource distribution for a single bridge outside of the loop Mika Westerberg
2018-04-24 23:05   ` Bjorn Helgaas
2018-04-25  7:29     ` Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 7/9] PCI: Document return value of pci_scan_bridge() and pci_scan_bridge_extend() Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 8/9] PCI: Improve "partially hidden behind bridge" log message Mika Westerberg
2018-04-16 10:34 ` [PATCH v5 9/9] ACPI / hotplug / PCI: Drop unnecessary parentheses Mika Westerberg

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