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From: Michael Ellerman <mpe@ellerman.id.au>
To: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
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        Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Subject: Re: [PATCH v3 2/2] powerpc: emulate_step tests for load/store instructions
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Date: Tue, 14 Feb 2017 21:46:25 +1100
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Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> writes:

> diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
> index 0e649d7..ddc879d 100644
> --- a/arch/powerpc/lib/Makefile
> +++ b/arch/powerpc/lib/Makefile
> @@ -33,3 +33,7 @@ obj-$(CONFIG_ALTIVEC)	+= xor_vmx.o
>  CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec)
>  
>  obj-$(CONFIG_PPC64) += $(obj64-y)
> +
> +ifeq ($(CONFIG_PPC64), y)
> +obj-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o
> +endif

FYI, the right way to do that is:

  obj64-$(CONFIG_KPROBES_SANITY_TEST) += test_emulate_step.o
  obj-$(CONFIG_PPC64) += $(obj64-y)

And in this Makefile you don't need to add the second line because it's
already there.

cheers