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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 v7 08/12] ACPI / hotplug / PCI: Mark stale PCI devices disconnected
Date: Thu, 17 May 2018 12:28:59 +0300	[thread overview]
Message-ID: <20180517092903.43701-9-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20180517092903.43701-1-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 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);
-- 
2.17.0


  parent reply	other threads:[~2018-05-17  9:28 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-17  9:28 [PATCH v7 00/12] PCI: Fixes and cleanups for native PCIe, SHPC and ACPI hotplug Mika Westerberg
2018-05-17  9:28 ` [PATCH v7 01/12] PCI: Take all bridges into account when calculating bus numbers for extension Mika Westerberg
2018-05-17  9:28 ` [PATCH v7 02/12] PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume Mika Westerberg
2018-05-17  9:28 ` [PATCH v7 03/12] PCI: Request control of native PCIe hotplug only if supported Mika Westerberg
2018-05-17 14:13   ` Bjorn Helgaas
2018-05-18  7:48     ` Rafael J. Wysocki
2018-05-18 12:57       ` Bjorn Helgaas
2018-05-18 13:07         ` Bjorn Helgaas
2018-05-18 20:30           ` Rafael J. Wysocki
2018-05-18 20:28         ` Rafael J. Wysocki
2018-05-17  9:28 ` [PATCH v7 04/12] PCI: Make pciehp_is_native() stricter Mika Westerberg
2018-05-17  9:28 ` [PATCH v7 05/12] PCI: hotplug: Convert SHPC to be builtin only Mika Westerberg
2018-05-17  9:28 ` [PATCH v7 06/12] PCI: Request control of native SHPC hotplug similarly to pciehp Mika Westerberg
2018-05-24 21:57   ` Bjorn Helgaas
2018-05-17  9:28 ` [PATCH v7 07/12] ACPI / hotplug / PCI: Do not scan all bridges when native PCIe hotplug is used Mika Westerberg
2018-05-17  9:28 ` Mika Westerberg [this message]
2018-05-17  9:29 ` [PATCH v7 09/12] PCI: Move resource distribution for a single bridge outside of the loop Mika Westerberg
2018-05-17  9:29 ` [PATCH v7 10/12] PCI: Document return value of pci_scan_bridge() and pci_scan_bridge_extend() Mika Westerberg
2018-05-17 11:44   ` Andy Shevchenko
2018-05-17  9:29 ` [PATCH v7 11/12] PCI: Improve "partially hidden behind bridge" log message Mika Westerberg
2018-05-17 11:44   ` Andy Shevchenko
2018-05-17  9:29 ` [PATCH v7 12/12] ACPI / hotplug / PCI: Drop unnecessary parentheses Mika Westerberg
2018-05-17 11:43   ` Andy Shevchenko

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