Rafael J. Wysocki e82c5cdc40 PCI / PM: Force devices to D0 in pci_pm_thaw_noirq() ... commit 5839ee7389e893a31e4e3c9cf17b50d14103c902 upstream. It is incorrect to call pci_restore_state() for devices in low-power states (D1-D3), as that involves the restoration of MSI setup which requires MMIO to be operational and that is only the case in D0. However, pci_pm_thaw_noirq() may do that if the driver's "freeze" callbacks put the device into a low-power state, so fix it by making it force devices into D0 via pci_set_power_state() instead of trying to "update" their power state which is pointless. Fixes: e60514bd4485 (PCI/PM: Restore the status of PCI devices across hibernation) Reported-by: Thomas Gleixner <tglx@linutronix.de> Reported-by: Maarten Lankhorst <dev@mblankhorst.nl> Tested-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Maarten Lankhorst <dev@mblankhorst.nl> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>		2019-07-27 21:46:19 +02:00
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host
hotplug
pcie
access.c
ats.c
bus.c
host-bridge.c
hotplug-pci.c
htirq.c
ioapic.c
iov.c
irq.c
Kconfig
Makefile
msi.c
of.c
pci-acpi.c
pci-driver.c	PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()	2019-07-27 21:46:19 +02:00
pci-label.c
pci-stub.c
pci-sysfs.c
pci.c
pci.h
probe.c
proc.c
quirks.c
remove.c
rom.c
search.c
setup-bus.c
setup-irq.c
setup-res.c
slot.c
syscall.c
vpd.c
xen-pcifront.c