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Code Issues Releases Wiki Activity
linux-stable/drivers/pci/hotplug
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Keith Busch 7612b3b28c PCI: pciehp: Report power fault only once until we clear it 
When a power fault occurs, the power controller sets Power Fault Detected
in the Slot Status register, and pciehp_isr() queues an INT_POWER_FAULT
event to handle it.

It also clears Power Fault Detected, but since nothing has yet changed to
correct the power fault, the power controller will likely set it again
immediately, which may cause an infinite loop when pcie_isr() rechecks
Slot Status.

Fix that by masking off Power Fault Detected from new events if the driver
hasn't seen the power fault clear from the previous handling attempt.

Fixes: fad214b0aa ("PCI: pciehp: Process all hotplug events before looking for new ones")
Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: changelog, pull test out and add comment]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Mayurkumar Patel <mayurkumar.patel@intel.com>
Cc: stable@vger.kernel.org	# 4.9+
2017-08-15 13:46:31 -05:00
..
acpi_pcihp.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
acpiphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
acpiphp_core.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
acpiphp_glue.c ACPI / hotplug / PCI: Make device_is_managed_by_native_pciehp() public 2016-11-17 18:47:58 -06:00
acpiphp_ibm.c PCI: acpiphp_ibm: Make ibm_apci_table_attr __ro_after_init 2017-01-11 14:56:02 -06:00
cpci_hotplug.h PCI: hotplug: Make core explicitly non-modular 2016-08-24 17:20:14 -05:00
cpci_hotplug_core.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
cpci_hotplug_pci.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpcihp_generic.c Annotate hardware config module parameters in drivers/pci/hotplug/ 2017-04-20 12:02:32 +01:00
cpcihp_zt5550.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpcihp_zt5550.h
cpqphp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
cpqphp_core.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cpqphp_ctrl.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpqphp_nvram.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cpqphp_nvram.h
cpqphp_pci.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpqphp_sysfs.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
ibmphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
ibmphp_core.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
ibmphp_ebda.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
ibmphp_hpc.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
ibmphp_pci.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
ibmphp_res.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
Kconfig PCI/hotplug: PowerPC PowerNV PCI hotplug driver 2016-06-21 15:30:58 +10:00
Makefile PCI/hotplug: PowerPC PowerNV PCI hotplug driver 2016-06-21 15:30:58 +10:00
pci_hotplug_core.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pciehp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
pciehp_core.c PCI: pciehp: Remove loading message 2016-12-12 10:05:24 -06:00
pciehp_ctrl.c Revert "PCI: pciehp: Add runtime PM support for PCIe hotplug ports" 2017-02-03 08:53:51 -06:00
pciehp_hpc.c PCI: pciehp: Report power fault only once until we clear it 2017-08-15 13:46:31 -05:00
pciehp_pci.c PCI: Add device disconnected state 2017-03-29 22:54:46 -05:00
pcihp_skeleton.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
pnv_php.c powerpc updates for 4.11 part 2 2017-03-01 10:10:16 -08:00
rpadlpar.h
rpadlpar_core.c PCI: rpadlpar: Remove unnecessary return statement 2017-01-11 14:53:59 -06:00
rpadlpar_sysfs.c
rpaphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
rpaphp_core.c powerpc/pci: Rename pcibios_{add, remove}_pci_devices() 2016-05-11 21:54:23 +10:00
rpaphp_pci.c powerpc/pci: Rename pcibios_find_pci_bus() 2016-05-11 21:54:24 +10:00
rpaphp_slot.c PCI: rpaphp: Fix slot registration for multiple slots under a PHB 2016-07-20 11:54:55 +10:00
s390_pci_hpc.c s390: hotplug: make pci_hpc explicitly non-modular 2016-10-31 17:55:44 +01:00
sgi_hotplug.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
shpchp.h sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
shpchp_core.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
shpchp_ctrl.c
shpchp_hpc.c PCI: shpchp: Enable bridge bus mastering if MSI is enabled 2017-08-02 16:54:50 -05:00
shpchp_pci.c
shpchp_sysfs.c PCI: Use to_pci_dev() instead of open-coding it 2016-01-08 12:05:39 -06:00