Re: [PATCH] x86/pci: fix intel_mid_pci.c build error when ACPI is not enabled

[Bjorn Helgaas]

[+cc Andy]

On Thu, Aug 13, 2020 at 12:58:38PM -0700, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> 
> 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()")

Possibly
Cc: stable@xxxxxxxxxxxxxxx	# v4.16+

> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> Cc: Len Brown <lenb@xxxxxxxxxx>
> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Cc: Jesse Barnes <jsbarnes@xxxxxxxxxx>
> Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx
> ---
> Found in linux-next, but applies to/exists in mainline also.
> 
> Alternative.1: X86_INTEL_MID depends on ACPI
> Alternative.2: drop X86_INTEL_MID support
> 
>  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
>  
>