Re: [Xen-devel] [patch] x86, xen: fix build dependency when USB_SUPPORT is not enabled

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Oct 31, 2012 at 10:42:30PM -0700, David Rientjes wrote:
> CONFIG_XEN_DOM0 must depend on CONFIG_USB_SUPPORT, otherwise there is no 
> definition of xen_dbgp_reset_prep() and xen_dbgp_external_startup() 
> resulting in the following link error:
> 
> drivers/built-in.o: In function `dbgp_reset_prep':
> (.text+0x1e03c5): undefined reference to `xen_dbgp_reset_prep'
> drivers/built-in.o: In function `dbgp_external_startup':
> (.text+0x1e0d55): undefined reference to `xen_dbgp_external_startup'

There is another patch that needs to be Acked and picked up by
Greg KH that fixes this.

Let me poke Jan Beulich to repost it with the appropiate Acks.
> 
> Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
> ---
>  arch/x86/xen/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
> --- a/arch/x86/xen/Kconfig
> +++ b/arch/x86/xen/Kconfig
> @@ -17,6 +17,7 @@ config XEN_DOM0
>       def_bool y
>       depends on XEN && PCI_XEN && SWIOTLB_XEN
>       depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
> +     depends on USB_SUPPORT
>  
>  # Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
>  # name in tools.

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