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OpenCloudOS-Kernel/drivers/pci/hotplug
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Mika Westerberg ab1225901d Revert "ACPI / hotplug / PCI: Avoid doing too much for spurious notifies" 
Commit 2dc4128 (ACPI / hotplug / PCI: Avoid doing too much for
spurious notifies) changed the enable_slot() to check return value of
pci_scan_slot() and if it is zero return early from the function. It
means that there were no new devices in this particular slot.

However, if a device appeared deeper in the hierarchy the code now
ignores it causing things like Thunderbolt chaining fail to recognize
new devices.

The problem with Alex Williamson's machine was solved with commit
a47d8c8 (ACPI / hotplug / PCI: Avoid parent bus rescans on spurious
device checks) and hence we should be able to restore the original
functionality that we always rescan on bus check notification.

On a device check notification we still check what acpiphp_rescan_slot()
returns and on zero bail out early.

Fixes: 2dc41281b1 (ACPI / hotplug / PCI: Avoid doing too much for spurious notifies)
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 		2013-10-30 15:28:52 +01:00
..
Kconfig s390/pci/hotplug: convert to be builtin only 2013-08-30 08:57:07 +02:00
Makefile s390/pci: PCI hotplug support via SCLP 2012-11-30 17:47:25 +01:00
acpi_pcihp.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
acpiphp.h ACPI / hotplug / PCI: Get rid of unused constants in acpiphp.h 2013-07-23 04:00:27 +02:00
acpiphp_core.c ACPI / hotplug / PCI: Consolidate slot disabling and ejecting 2013-07-23 04:00:25 +02:00
acpiphp_glue.c Revert "ACPI / hotplug / PCI: Avoid doing too much for spurious notifies" 2013-10-30 15:28:52 +01:00
acpiphp_ibm.c Merge branch 'acpi-assorted' 2013-08-27 01:29:04 +02:00
cpci_hotplug.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpci_hotplug_core.c PCI: hotplug: ensure a consistent return value in error case 2012-07-16 09:25:56 -06:00
cpci_hotplug_pci.c PCI: cpcihp: Iterate over all devices in slot, not functions 0-7 2013-01-25 09:23:08 -07:00
cpcihp_generic.c PCI/cpcihp: Use hotplug-safe pci_get_domain_bus_and_slot() 2012-09-12 14:13:59 -06:00
cpcihp_zt5550.c PCI: Remove __dev* markings 2012-11-28 13:16:47 -08:00
cpcihp_zt5550.h
…
cpqphp.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpqphp_core.c PCI: hotplug: ensure a consistent return value in error case 2012-07-16 09:25:56 -06:00
cpqphp_ctrl.c PCI: cpqphp: Cleanup and remove unreachable paths 2013-01-07 11:34:04 -07:00
cpqphp_nvram.c PCI Hotplug: cpqphp: fix comment style 2009-06-11 12:04:08 -07:00
cpqphp_nvram.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
cpqphp_pci.c PCI: cpqhp: use generic pci_hp_add_bridge() 2012-06-13 15:42:26 -06:00
cpqphp_sysfs.c cpqphp_sysfs: switch to fixed_size_llseek() 2013-06-29 12:57:52 +04:00
ibmphp.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
ibmphp_core.c PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
ibmphp_ebda.c pci: hotplug: Fix typo in pci 2012-07-24 12:59:30 +02:00
ibmphp_hpc.c PCI hotplug: ibmphp-hpc: semaphore cleanup 2010-10-15 13:09:48 -07:00
ibmphp_pci.c pci: hotplug: Fix typo in pci 2012-07-24 12:59:30 +02:00
ibmphp_res.c ibmphp: Rename add_range() to add_bus_range() to avoid conflict 2010-02-10 17:45:09 -08:00
pci_hotplug_core.c PCI: Remove __must_check from definitions 2013-04-17 10:20:58 -06:00
pciehp.h PCI: pciehp: Add reset_slot() method 2013-08-14 14:55:26 -06:00
pciehp_acpi.c PCI: Use PCI_EXP_SLTCAP_PSN mask when extracting slot number 2013-04-15 14:30:44 -06:00
pciehp_core.c PCI: pciehp: Add reset_slot() method 2013-08-14 14:55:26 -06:00
pciehp_ctrl.c PCI: pciehp: Use per-slot workqueues to avoid deadlock 2013-01-12 13:56:33 -07:00
pciehp_hpc.c PCI: pciehp: Add reset_slot() method 2013-08-14 14:55:26 -06:00
pciehp_pci.c PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device 2013-07-25 14:11:06 -06:00
pcihp_skeleton.c PCI: hotplug: ensure a consistent return value in error case 2012-07-16 09:25:56 -06:00
pcihp_slot.c PCI: Simplify pcie_bus_configure_settings() interface 2013-08-22 10:47:02 -06:00
rpadlpar.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
rpadlpar_core.c powerpc/pci/hotplug: Don't need to remove from EEH cache twice 2013-07-24 14:18:47 +10:00
rpadlpar_sysfs.c
…
rpaphp.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
rpaphp_core.c module_param: make bool parameters really bool (drivers & misc) 2012-01-13 09:32:20 +10:30
rpaphp_pci.c PCI hotplug: rpaphp: make debug var unique 2008-10-20 10:54:27 -07:00
rpaphp_slot.c headers: kobject.h redux 2011-01-10 08:51:44 -08:00
s390_pci_hpc.c s390/pci: add recover sysfs knob 2013-08-30 08:57:12 +02:00
sgi_hotplug.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
shpchp.h PCI: Remove "extern" from function declarations 2013-04-17 10:21:17 -06:00
shpchp_core.c drivers: avoid format strings in names passed to alloc_workqueue() 2013-07-03 16:07:41 -07:00
shpchp_ctrl.c PCI: shpchp: Use per-slot workqueues to avoid deadlock 2013-01-14 10:23:22 -07:00
shpchp_hpc.c PCI hotplug: shpchp: don't blindly claim non-AMD 0x7450 device IDs 2011-11-14 09:43:14 -08:00
shpchp_pci.c PCI: shpchp: Iterate over all devices in slot, not functions 0-7 2013-01-25 09:23:08 -07:00
shpchp_sysfs.c PCI: Remove __must_check from definitions 2013-04-17 10:20:58 -06:00