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x86/PCI: make Broadcom CNB20LE driver EMBEDDED and EXPERIMENTAL 

This functionality is known to be incomplete, so discourage its use in
general-purpose kernels.

The only reason to use this driver is to support PCI hotplug on CNB20LE-
based machines that don't have ACPI, and there are very few such
systems.

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=665109
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas 2011-01-06 10:12:30 -07:00 committed by Jesse Barnes
parent 30e664afb5
commit 64a5fed666
1 changed files with 8 additions and 2 deletions
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10
arch/x86/Kconfig
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@ -1907,13 +1907,19 @@ config PCI_MMCONFIG
depends on X86_64 && PCI && ACPI
config PCI_CNB20LE_QUIRK
bool "Read CNB20LE Host Bridge Windows"
depends on PCI
bool "Read CNB20LE Host Bridge Windows" if EMBEDDED
default n
depends on PCI && EXPERIMENTAL
help
Read the PCI windows out of the CNB20LE host bridge. This allows
PCI hotplug to work on systems with the CNB20LE chipset which do
not have ACPI.
There's no public spec for this chipset, and this functionality
is known to be incomplete.
You should say N unless you know you need this.
config DMAR
bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
depends on PCI_MSI && ACPI && EXPERIMENTAL