PCI: Propagate the "ignore hotplug" setting to parent
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 13 Apr 2015 14:23:36 +0000 (16:23 +0200)
committerBjorn Helgaas <bhelgaas@google.com>
Sat, 23 May 2015 01:33:09 +0000 (20:33 -0500)
commit0824965140fff1bf640a987dc790d1594a8e0699
tree8f0457873f879d9ad43461ace03d6f06a5720596
parentd41be3466f4243f1b198b76fe3bcd91d88194f12
PCI: Propagate the "ignore hotplug" setting to parent

Refine the mechanism introduced by commit f244d8b623da ("ACPIPHP / radeon /
nouveau: Fix VGA switcheroo problem related to hotplug") to propagate the
ignore_hotplug setting of the device to its parent bridge in case hotplug
notifications related to the graphics adapter switching are given for the
bridge rather than for the device itself (they need to be ignored in both
cases).

Link: https://bugzilla.kernel.org/show_bug.cgi?id=61891
Link: https://bugs.freedesktop.org/show_bug.cgi?id=88927
Fixes: b440bde74f04 ("PCI: Add pci_ignore_hotplug() to ignore hotplug events for a device")
Reported-and-tested-by: tiagdtd-lava <tiagdtd-lava@yahoo.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.17+
drivers/pci/pci.c
include/linux/pci.h