WSL2-Linux-Kernel/drivers/acpi
Rafael J. Wysocki 9e8ce4b96b Revert "x86/PCI: Refine the way to release PCI IRQ resources"
Commit b4b55cda58 (Refine the way to release PCI IRQ resources)
introduced a regression in the PCI IRQ resource management by causing
the IRQ resource of a device, established when pci_enabled_device()
is called on a fully disabled device, to be released when the driver
is unbound from the device, regardless of the enable_cnt.

This leads to the situation that an ill-behaved driver can now make a
device unusable to subsequent drivers by an imbalance in their use of
pci_enable/disable_device().  That is a serious problem for secondary
drivers like vfio-pci, which are innocent of the transgressions of
the previous driver.

Since the solution of this problem is not immediate and requires
further discussion, revert commit b4b55cda58 and the issue it was
supposed to address (a bug related to xen-pciback) will be taken
care of in a different way going forward.

Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-03-20 14:56:19 +01:00
..
acpica
apei
pmic
Kconfig
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2015-02-19 11:28:36 -08:00
ac.c
acpi_apd.c
acpi_cmos_rtc.c
acpi_extlog.c
acpi_ipmi.c
acpi_lpat.c
acpi_lpss.c ACPI / LPSS: provide con_id for the clkdev 2015-03-10 00:28:43 +01:00
acpi_memhotplug.c
acpi_pad.c
acpi_platform.c
acpi_pnp.c
acpi_processor.c
battery.c
battery.h
bgrt.c
blacklist.c
bus.c
button.c
cm_sbs.c
container.c
custom_method.c
debugfs.c
device_pm.c
dock.c
ec.c ACPI / EC: Remove non-standard log emphasis 2015-02-17 18:27:59 +01:00
ec_sys.c
event.c
fan.c
glue.c
hed.c
int340x_thermal.c
internal.h
ioapic.c
numa.c
nvs.c
osl.c
pci_irq.c Revert "x86/PCI: Refine the way to release PCI IRQ resources" 2015-03-20 14:56:19 +01:00
pci_link.c
pci_root.c
pci_slot.c
power.c
proc.c
processor_core.c
processor_driver.c
processor_idle.c ACPI / idle: Implement ->enter_freeze callback routine 2015-02-15 19:40:10 +01:00
processor_pdc.c
processor_perflib.c
processor_thermal.c
processor_throttling.c
property.c
reboot.c
resource.c x86/PCI/ACPI: Relax ACPI resource descriptor checks to work around BIOS bugs 2015-03-04 14:09:50 +01:00
sbs.c
sbshc.c
sbshc.h
scan.c
sleep.c
sleep.h
sysfs.c
tables.c
thermal.c
utils.c
video.c ACPI / video: Propagate the error code for acpi_video_register 2015-03-04 15:10:36 +01:00
video_detect.c
wakeup.c