AcoSail/kernel_optimize_test
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d7d55536c6
kernel_optimize_test/drivers/pci/hotplug
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Gavin Shan d7d55536c6 drivers/pci/hotplug: Handle presence detection change properly 
The surprise hotplug is driven by interrupt in PowerNV PCI hotplug
driver. In the interrupt handler, pnv_php_interrupt(), we bail when
pnv_pci_get_presence_state() returns zero wrongly. It causes the
presence change event is always ignored incorrectly.

This fixes the issue by bailing on error (non-zero value) returned
from pnv_pci_get_presence_state().

Fixes: 360aebd85a ("drivers/pci/hotplug: Support surprise hotplug in powernv driver")
Cc: stable@vger.kernel.org #v4.9+
Reported-by: Hank Chang <hankmax0000@gmail.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Tested-by: Willie Liauw <williel@supermicro.com.tw>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-15 20:02:43 +11:00
..
acpi_pcihp.c 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 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
acpiphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpci_hotplug_core.c PCI: hotplug: Make core explicitly non-modular 2016-08-24 17:20:14 -05:00
cpci_hotplug_pci.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpci_hotplug.h PCI: hotplug: Make core explicitly non-modular 2016-08-24 17:20:14 -05:00
cpcihp_generic.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpcihp_zt5550.c PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
cpcihp_zt5550.h PCI: Fix whitespace, capitalization, and spelling errors 2013-11-14 11:28:18 -07:00
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
cpqphp.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
ibmphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -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_core.c PCI: pciehp: Remove loading message 2016-12-12 10:05:24 -06:00
pciehp_ctrl.c Merge branch 'pci/pm' into next 2016-12-12 11:25:04 -06:00
pciehp_hpc.c PCI: pciehp: Prioritize data-link event over presence detect 2016-12-07 17:00:44 -06:00
pciehp_pci.c PCI: pciehp: Remove pci_configure_slot() usage 2014-09-12 20:09:47 -06:00
pciehp.h PCI: pciehp: Allow exclusive userspace control of indicators 2016-09-22 18:20:11 -05:00
pcihp_skeleton.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
pnv_php.c drivers/pci/hotplug: Handle presence detection change properly 2017-02-15 20:02:43 +11:00
rpadlpar_core.c powerpc/pci/rpadlpar: Fix device reference leaks 2016-11-14 20:05:59 +11:00
rpadlpar_sysfs.c
rpadlpar.h
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
rpaphp.h PCI: Fix all whitespace issues 2016-01-08 10:35:24 -06:00
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_core.c Merge branch 'pci/trivial' into next 2016-01-20 11:48:25 -06:00
shpchp_ctrl.c PCI: Remove assignment from "if" conditions 2014-09-24 07:50:53 -06:00
shpchp_hpc.c PCI: shpchp: Constify hpc_ops structure 2016-01-08 12:10:00 -06:00
shpchp_pci.c PCI: shpchp: Remove pci_configure_slot() usage 2014-09-12 20:09:49 -06:00
shpchp_sysfs.c PCI: Use to_pci_dev() instead of open-coding it 2016-01-08 12:05:39 -06:00
shpchp.h PCI: shpchp: Constify hpc_ops structure 2016-01-08 12:10:00 -06:00