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Date: Wed, 11 May 2016 21:38:20 +1000
From: Paul Mackerras <paulus@ozlabs.org>
To: Gavin Shan <gwshan@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
 warrier@linux.vnet.ibm.com, mpe@ellerman.id.au
Subject: Re: [PATCH] powerpc/kvm: Fix build error on book3s_hv.c
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On Wed, May 11, 2016 at 11:15:55AM +1000, Gavin Shan wrote:
> When CONFIG_KVM_XICS is enabled, CPU_UP_PREPARE and other macros for
> CPU states in linux/cpu.h are needed by arch/powerpc/kvm/book3s_hv.c.
> Otherwise, build error as below is seen:
> 
>    gwshan@gwshan:~/sandbox/l$ make arch/powerpc/kvm/book3s_hv.o
>     :
>    CC      arch/powerpc/kvm/book3s_hv.o
>    arch/powerpc/kvm/book3s_hv.c: In function ‘kvmppc_cpu_notify’:
>    arch/powerpc/kvm/book3s_hv.c:3072:7: error: ‘CPU_UP_PREPARE’ \
>    undeclared (first use in this function)
> 
> This fixes the issue introduced by commit <6f3bb80944> ("KVM: PPC:
> Book3S HV: kvmppc_host_rm_ops - handle offlining CPUs").
> 
> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>

Thanks, applied to my kvm-ppc-next branch (with cc:
stable@vger.kernel.org).

Paul.