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 v6 08/12] ACPI / hotplug / PCI: Mark stale PCI devices disconnected
Date: Thu, 10 May 2018 21:28:40 +0300 [thread overview]
Message-ID: <20180510182844.77349-9-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20180510182844.77349-1-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
next prev parent reply other threads:[~2018-05-10 18:28 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-10 18:28 [PATCH v6 00/12] PCI: Fixes and cleanups for native PCIe, SHPC and ACPI hotplug Mika Westerberg
2018-05-10 18:28 ` [PATCH v6 01/12] PCI: Take all bridges into account when calculating bus numbers for extension Mika Westerberg
2018-05-10 18:28 ` [PATCH v6 02/12] PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume Mika Westerberg
2018-05-10 18:28 ` [PATCH v6 03/12] PCI: Request control of native PCIe hotplug only if supported Mika Westerberg
2018-05-10 19:44 ` Lukas Wunner
2018-05-15 9:10 ` Rafael J. Wysocki
2018-05-15 9:12 ` Rafael J. Wysocki
2018-05-10 18:28 ` [PATCH v6 04/12] PCI: Make pciehp_is_native() stricter Mika Westerberg
2018-05-10 19:51 ` Lukas Wunner
2018-05-14 5:32 ` Mika Westerberg
2018-05-15 9:17 ` Rafael J. Wysocki
2018-05-24 18:08 ` Bjorn Helgaas
2018-05-24 18:31 ` Mika Westerberg
2018-05-24 19:35 ` Bjorn Helgaas
2018-05-10 18:28 ` [PATCH v6 05/12] PCI: hotplug: Convert SHPC to be builtin only Mika Westerberg
2018-05-15 9:18 ` Rafael J. Wysocki
2018-05-10 18:28 ` [PATCH v6 06/12] PCI: Request control of native SHPC hotplug similarly to pciehp Mika Westerberg
2018-05-15 9:20 ` Rafael J. Wysocki
2018-05-10 18:28 ` [PATCH v6 07/12] ACPI / hotplug / PCI: Do not scan all bridges when native PCIe hotplug is used Mika Westerberg
2018-05-15 9:26 ` Rafael J. Wysocki
2018-05-10 18:28 ` Mika Westerberg [this message]
2018-05-10 18:28 ` [PATCH v6 09/12] PCI: Move resource distribution for a single bridge outside of the loop Mika Westerberg
2018-05-10 18:28 ` [PATCH v6 10/12] PCI: Document return value of pci_scan_bridge() and pci_scan_bridge_extend() Mika Westerberg
2018-05-10 18:28 ` [PATCH v6 11/12] PCI: Improve "partially hidden behind bridge" log message Mika Westerberg
2018-05-15 9:22 ` Rafael J. Wysocki
2018-05-10 18:28 ` [PATCH v6 12/12] ACPI / hotplug / PCI: Drop unnecessary parentheses Mika Westerberg
2018-05-24 18:30 ` [PATCH v6 00/12] PCI: Fixes and cleanups for native PCIe, SHPC and ACPI hotplug Bjorn Helgaas
2018-05-25 6:07 ` Mika Westerberg
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