APIC / ACPI Build issue

From: gaumer (gaumer_at_egaumer.com)
Date: 06/03/04

  • Next message: Jakob Oestergaard: "Re: Promise PDC20378 Raid Accelerator" 
    To: linux-kernel@vger.kernel.org
Date:	Thu, 03 Jun 2004 10:03:43 -0400

    Excuse my ignorance, I'm new to kernel development.

    I've just patched my source with rc2-mm2 and there seems to be a build
    issue concerning APIC / ACPI support.

    The error:

      LD init/built-in.o
      LD .tmp_vmlinux1
    arch/i386/kernel/built-in.o(.text+0xdaca): In function `acpi_register_gsi':
    : undefined reference to `mp_register_gsi'
    make[1]: *** [.tmp_vmlinux1] Error 1

    It seems that in arch/i386/kernel/acpi/boot.c
    at line 462 we have:

    #ifdef CONFIG_X86_IO_APIC
            if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) {
                    mp_register_gsi(gsi, edge_level, active_high_low);
            }
    #endif

    ...yet mp_register_gsi is only defined if:

    (line 879 of arch/i386/kernel/mpparse.c)
    #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)

    So if the .config looks like:

    # Power management options (ACPI, APM)
    #
    # CONFIG_PM is not set
                                                                                                                                                                                       
    #
    # ACPI (Advanced Configuration and Power Interface) Support
    #
    # CONFIG_ACPI is not set
    CONFIG_ACPI_BOOT=y
                                                                                                                                                                                       
    #
    # CPU Frequency scaling

    With the power management stuff turned off and SMP support enabled the
    result is this build error.

    Does CONFIG_ACPI_INTERPRETER have to be defined? If so, then can we
    require the definition in arch/i386/kernel/acpi/boot.c as well? This is
    not an area I'm familiar with.

    The last build I did was on 2.6.6-mm5 and things were okay there (same
    config).

    -
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