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    SubjectRe: [PATCH v2] x86/pci: fix intel_mid_pci.c build error when ACPI is not enabled
    On Fri, Aug 21, 2020 at 05:10:27PM -0700, Randy Dunlap wrote:
    > From: Randy Dunlap <rdunlap@infradead.org>
    >
    > Fix build error when CONFIG_ACPI is not set/enabled by adding
    > the header file <asm/acpi.h> which contains a stub for the function
    > in the build error.
    >
    > ../arch/x86/pci/intel_mid_pci.c: In function ‘intel_mid_pci_init’:
    > ../arch/x86/pci/intel_mid_pci.c:303:2: error: implicit declaration of function ‘acpi_noirq_set’; did you mean ‘acpi_irq_get’? [-Werror=implicit-function-declaration]
    > acpi_noirq_set();
    >
    > Fixes: a912a7584ec3 ("x86/platform/intel-mid: Move PCI initialization to arch_init()")
    > Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
    > Cc: stable@vger.kernel.org # v4.16+
    > Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
    > Cc: Len Brown <lenb@kernel.org>
    > To: Bjorn Helgaas <bhelgaas@google.com>
    > Cc: Jesse Barnes <jsbarnes@google.com>
    > Cc: Arjan van de Ven <arjan@linux.intel.com>
    > Cc: linux-pci@vger.kernel.org
    > Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
    > Reviewed-by: Jesse Barnes <jsbarnes@google.com>
    > Acked-by: Thomas Gleixner <tglx@linutronix.de>

    Applied to pci/misc for v5.10, thanks!

    We could put it in v5.9, but a912a7584ec3 was merged for v4.16, so
    apparently this has been broken for a long time.

    > ---
    > Found in linux-next, but applies to/exists in mainline also.
    >
    > v2:
    > - add Reviewed-by: and Acked-by: tags
    > - drop alternatives
    >
    > arch/x86/pci/intel_mid_pci.c | 1 +
    > 1 file changed, 1 insertion(+)
    >
    > --- linux-next-20200813.orig/arch/x86/pci/intel_mid_pci.c
    > +++ linux-next-20200813/arch/x86/pci/intel_mid_pci.c
    > @@ -33,6 +33,7 @@
    > #include <asm/hw_irq.h>
    > #include <asm/io_apic.h>
    > #include <asm/intel-mid.h>
    > +#include <asm/acpi.h>
    >
    > #define PCIE_CAP_OFFSET 0x100
    >
    >

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