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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 kernel.h: remove ancient __FUNCTION__ hack 2015-02-12 18:54:13 -08:00
apei When checking addresses in APEI action entries for validity, allow 2015-01-15 11:30:57 +01:00
pmic ACPI / PMIC: Use common LPAT table handling functions 2015-01-29 21:02:11 +08:00
Kconfig x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug 2015-02-05 15:09:26 +01:00
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 Revert "ACPI / AC: Remove AC's proc directory." 2014-07-07 01:13:46 +02:00
acpi_apd.c ACPI: add AMD ACPI2Platform device support for x86 system 2015-02-06 15:42:16 +01:00
acpi_cmos_rtc.c ACPI / RTC: Fix CMOS RTC opregion handler accesses to wrong addresses 2014-09-08 15:38:41 +02:00
acpi_extlog.c ACPI and power management updates for 3.17-rc1 2014-08-06 20:34:19 -07:00
acpi_ipmi.c ACPI / IPMI: Cleanup coding styles 2013-09-30 19:46:13 +02:00
acpi_lpat.c ACPI / LPAT: Common table processing functions 2015-01-29 21:02:10 +08:00
acpi_lpss.c ACPI / LPSS: provide con_id for the clkdev 2015-03-10 00:28:43 +01:00
acpi_memhotplug.c ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
acpi_pad.c cpumask: factor out show_cpumap into separate helper function 2014-11-07 11:45:00 -08:00
acpi_platform.c resources: Move struct resource_list_entry from ACPI into resource core 2015-02-05 15:09:25 +01:00
acpi_pnp.c ACPI and power management updates for 3.18-rc1 2014-10-09 16:07:43 -04:00
acpi_processor.c ACPI / processor: Rename acpi_(un)map_lsapic() to acpi_(un)map_cpu() 2015-01-05 23:34:26 +01:00
battery.c ACPI: Add _DEP support to fix battery issue on Asus T100TA 2014-11-24 01:04:55 +01:00
battery.h ACPI / battery: move some ACPI_BATTERY_* definitions to header 2014-03-19 01:57:46 +01:00
bgrt.c acpi: bgrt: fix build error due to attribute change 2013-08-22 08:34:39 -07:00
blacklist.c acpi: Remove _OSI(Linux) for ThinkPads 2014-12-04 04:03:55 -08:00
bus.c ACPIPHP / radeon / nouveau: Remove acpi_bus_no_hotplug() 2014-09-15 13:15:34 -06:00
button.c ACPI / button: Do not propagate wakeup-from-suspend events 2014-07-23 00:59:04 +02:00
cm_sbs.c ACPI: Revert "ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c" 2014-05-06 01:52:09 +02:00
container.c ACPI / hotplug: Generate online uevents for ACPI containers 2014-09-21 02:58:18 +02:00
custom_method.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
debugfs.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
device_pm.c ACPI / PM: Remove unneeded nested #ifdef 2015-02-08 23:45:58 +01:00
dock.c ACPI / dock: Drop dock_device_ids[] table 2014-04-07 14:11:35 +02:00
ec.c ACPI / EC: Remove non-standard log emphasis 2015-02-17 18:27:59 +01:00
ec_sys.c ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c 2014-01-06 00:13:22 +01:00
event.c netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
fan.c ACPI / Fan: Use bus id as the name for non PNP0C0B (Fan) devices 2014-12-11 00:29:02 +01:00
glue.c ACPI / scan: Add bind/unbind callbacks to struct acpi_scan_handler 2014-02-11 00:35:46 +01:00
hed.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
int340x_thermal.c ACPI/int340x_thermal: enumerate INT3401 for Intel SoC DTS thermal driver 2015-01-06 08:17:14 +08:00
internal.h Merge branch 'acpi-resources' 2015-02-10 16:05:16 +01:00
ioapic.c x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug 2015-02-05 15:09:26 +01:00
numa.c ACPI / table: remove duplicate NULL check for the handler of acpi_table_parse() 2015-02-06 01:34:47 +01:00
nvs.c ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem. 2014-05-27 18:13:08 +02:00
osl.c ACPI / OSL: Add IRQ handler flushing support in the OSL. 2014-11-11 23:49:09 +01:00
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 ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
pci_root.c x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug 2015-02-05 15:09:26 +01:00
pci_slot.c ACPI / PCI: Include appropriate header file in pci_slot.c 2014-01-06 00:13:22 +01:00
power.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
proc.c ACPI / proc: remove unneeded NULL check 2014-02-05 01:06:21 +01:00
processor_core.c ACPI: Add interfaces to parse IOAPIC ID for IOAPIC hotplug 2015-02-05 15:09:26 +01:00
processor_driver.c ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events 2014-08-06 22:22:03 +02:00
processor_idle.c ACPI / idle: Implement ->enter_freeze callback routine 2015-02-15 19:40:10 +01:00
processor_pdc.c ACPI / processor: Introduce ARCH_MIGHT_HAVE_ACPI_PDC 2014-07-21 13:50:58 +02:00
processor_perflib.c ACPI / processor: use acpi_evaluate_ost() to replace open-coded version 2014-02-21 00:27:47 +01:00
processor_thermal.c ACPI: correct minor typos 2013-12-07 01:38:45 +01:00
processor_throttling.c ACPI / processor: Rework processor throttling with work_on_cpu() 2014-02-27 00:21:05 +01:00
property.c ACPI / property: Drop size_prop from acpi_dev_get_property_reference() 2014-11-05 20:48:06 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
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 ACPI / SBS: Fix check in acpi_ac_get_present() 2014-09-28 01:27:42 +02:00
sbshc.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
sbshc.h
…
scan.c ACPI: add AMD ACPI2Platform device support for x86 system 2015-02-06 15:42:16 +01:00
sleep.c ACPI / sleep: mark acpi_sleep_dmi_check() __init 2015-01-23 22:10:16 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPICA: Events: Reduce source code difference for the ACPI_EVENT_FLAG_HANDLE renaming. 2014-10-21 00:39:40 +02:00
tables.c ACPI / table: Always count matched and successfully parsed entries 2014-11-27 02:07:41 +01:00
thermal.c Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h 2014-10-10 13:57:15 +08:00
utils.c Merge branches 'acpi-scan', 'acpi-utils' and 'acpi-pm' 2014-12-18 18:42:56 +01:00
video.c ACPI / video: Propagate the error code for acpi_video_register 2015-03-04 15:10:36 +01:00
video_detect.c ACPI / video: force vendor backlight on Lenovo Ideapad Z570 2014-09-24 23:09:41 +02:00
wakeup.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00