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PCI hotplug: Change link order of pciehp & acpiphp

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Some hardware exposes PCIE slots in such a way that they can be claimed
by either the acpiphp or pciehp driver. pciehp is the preferred driver
if the firmware allows the OS to claim control via the _OSC method so
should be loaded first - if it fails to bind (either due to a missing
_OSC method or the firmware refusing to hand off control) then we can
fall back to acpiphp or a vendor-specific driver.

This patch simply changes the link order to ensure that pciehp will be
initialised before acpiphp if both are statically built into the kernel.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Matthew Garrett 2009-01-27 01:03:35 +00:00 committed by Jesse Barnes
parent bf4162bcf8
commit 71a082efc9
1 changed files with 5 additions and 1 deletions
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6
drivers/pci/hotplug/Makefile
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@ -5,11 +5,15 @@
obj-$(CONFIG_HOTPLUG_PCI) += pci_hotplug.o
obj-$(CONFIG_HOTPLUG_PCI_COMPAQ) += cpqphp.o
obj-$(CONFIG_HOTPLUG_PCI_IBM) += ibmphp.o
# pciehp should be linked before acpiphp in order to allow the native driver
# to attempt to bind first. We can then fall back to generic support.
obj-$(CONFIG_HOTPLUG_PCI_PCIE) += pciehp.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM) += acpiphp_ibm.o
obj-$(CONFIG_HOTPLUG_PCI_CPCI_ZT5550) += cpcihp_zt5550.o
obj-$(CONFIG_HOTPLUG_PCI_CPCI_GENERIC) += cpcihp_generic.o
obj-$(CONFIG_HOTPLUG_PCI_PCIE) += pciehp.o
obj-$(CONFIG_HOTPLUG_PCI_SHPC) += shpchp.o
obj-$(CONFIG_HOTPLUG_PCI_RPA) += rpaphp.o
obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR) += rpadlpar_io.o