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linux/drivers/pci
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Bjorn Helgaas 0f50a49e30 Revert "PCI: Avoid race while enabling upstream bridges" 
This reverts commit 40f11adc7c.

Jens found that iwlwifi firmware loading failed on a Lenovo X1 Carbon,
gen4:

  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-34.ucode failed with error -2
  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2
  iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2
  iwlwifi 0000:04:00.0: loaded firmware version 31.532993.0 op_mode iwlmvm
  iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
  ...
  iwlwifi 0000:04:00.0: Failed to load firmware chunk!
  iwlwifi 0000:04:00.0: Could not load the [0] uCode section
  iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110
  iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110

He bisected it to 40f11adc7c ("PCI: Avoid race while enabling upstream
bridges").  Revert that commit to fix the regression.

Link: http://lkml.kernel.org/r/4bcbcbc1-7c79-09f0-5071-bc2f53bf6574@kernel.dk
Fixes: 40f11adc7c ("PCI: Avoid race while enabling upstream bridges")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Srinath Mannam <srinath.mannam@broadcom.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Luca Coelho <luca@coelho.fi>
CC: Johannes Berg <johannes@sipsolutions.net>
CC: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2017-09-15 01:33:51 -05:00
..
dwc Merge branch 'pci/trivial' into next 2017-09-07 13:24:20 -05:00
endpoint Merge branch 'pci/misc' into next 2017-09-07 13:24:16 -05:00
host pci-v4.14-changes 2017-09-08 15:47:43 -07:00
hotplug Merge branch 'pci/misc' into next 2017-09-07 13:24:16 -05:00
pcie dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
switch Merge branch 'pci/switchtec' into next 2017-07-02 18:51:10 -05:00
access.c PCI: Provide Kconfig option for lockless config space accessors 2017-06-28 22:32:56 +02:00
ats.c PCI: Restore PRI and PASID state after Function-Level Reset 2017-05-30 15:40:50 -05:00
bus.c
ecam.c PCI: ECAM: Map config region with pci_remap_cfgspace() 2017-04-24 13:53:14 -05:00
host-bridge.c
hotplug-pci.c
htirq.c
iov.c PCI: Disable VF decoding before pcibios_sriov_disable() updates resources 2017-08-29 17:24:02 -05:00
irq.c pci-v4.12-changes 2017-05-08 19:03:25 -07:00
Kconfig PCI: Provide Kconfig option for lockless config space accessors 2017-06-28 22:32:56 +02:00
Makefile PCI: Build setup-irq.o on all arches 2017-07-02 16:14:27 -05:00
mmap.c PCI: Add I/O BAR support to generic pci_mmap_resource_range() 2017-04-20 08:47:47 -05:00
msi.c pci-v4.14-changes 2017-09-08 15:47:43 -07:00
of.c
pci-acpi.c ACPI / PCI / PM: Rework acpi_pci_propagate_wakeup() 2017-08-01 14:05:03 +02:00
pci-driver.c ACPI updates for v4.14-rc1 2017-09-05 12:45:03 -07:00
pci-label.c PCI: Constify label attribute_group structures 2017-08-10 15:21:41 -05:00
pci-mid.c PCI / PM: Simplify device wakeup settings code 2017-06-28 01:52:45 +02:00
pci-stub.c
pci-sysfs.c Merge branch 'pci/trivial' into next 2017-09-07 13:24:20 -05:00
pci.c Revert "PCI: Avoid race while enabling upstream bridges" 2017-09-15 01:33:51 -05:00
pci.h PCI: Mark Broadcom HT2100 Root Port Extended Tags as broken 2017-07-31 14:31:22 -05:00
probe.c pci-v4.14-changes 2017-09-08 15:47:43 -07:00
proc.c PCI: Add BAR index argument to pci_mmap_page_range() 2017-04-20 08:47:47 -05:00
quirks.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
remove.c
rom.c
search.c PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT 2017-04-13 18:49:50 -05:00
setup-bus.c PCI: Fix calculation of bridge window's size and alignment 2017-04-18 14:47:20 -05:00
setup-irq.c PCI: Inline and remove pcibios_update_irq() 2017-08-10 12:49:57 -05:00
setup-res.c PCI: Add a generic weak pcibios_align_resource() 2017-08-02 14:53:16 -05:00
slot.c
syscall.c
vc.c
vpd.c
xen-pcifront.c