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    SubjectRe: [ACPI] 2.6.14-rc4 ACPI/PCI compile problem
    On Tue, Oct 11, 2005 at 05:17:01PM -0600, Bjorn Helgaas wrote:
    > Please try the following patch and confirm whether it works.
    > [i386 kbuild] Don't clobber pci-y when X86_VISWS or X86_NUMAQ
    > Previously, enabling CONFIG_X86_VISWS or CONFIG_X86_NUMAQ
    > clobbered any previous contents of pci-y, because they used
    > ":=" instead of "+=".

    This isn't correct. We want to get rid of some of the current contents
    of pci-y when NUMAQ or VISWS are enabled. I'm not quite sure what the
    right fix is here. Maybe something like ...

    --- arch/i386/pci/Makefile 14 Sep 2005 12:54:20 -0000 1.3
    +++ arch/i386/pci/Makefile 12 Oct 2005 17:51:19 -0000
    @@ -4,11 +4,11 @@ obj-$(CONFIG_PCI_BIOS) += pcbios.o
    obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o
    obj-$(CONFIG_PCI_DIRECT) += direct.o

    -pci-y := fixup.o
    -pci-$(CONFIG_ACPI) += acpi.o
    -pci-y += legacy.o irq.o
    +acpi-$(CONFIG_ACPI) := acpi.o
    +pci-y := fixup.o $(acpi-y) legacy.o irq.o

    pci-$(CONFIG_X86_VISWS) := visws.o fixup.o
    -pci-$(CONFIG_X86_NUMAQ) := numa.o irq.o
    +pci-$(CONFIG_X86_NUMAQ) := numa.o $(acpi-y) irq.o

    obj-y += $(pci-y) common.o
    This mess really needs some more eyes on it. For example, should fixups.o
    really be enabled on visws but disabled on numaq? I suspect both want
    legacy.o disabled. Does it make sense to enable ACPI on a NUMAQ system?
    I don't know enough about them.

    And it /really/ needs some commentary. Here's my first cut at it, based
    on my memories of editing it several years ago:

    # A little more complex than most Makefiles.
    # Neither the VISWS nor the NUMAQ configs want to see legacy.o compiled in.
    # VISWS doesn't have ACPI to worry about, but NUMAQ might
    # Order is important -- don't rearrange the order of files here.

    Help most gratefully received from people who really understand these boxes!
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      Last update: 2005-10-12 20:03    [W:0.020 / U:2.776 seconds]
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