Re: linux-next: build failure after merge of the kvm tree

From: Wanpeng Li
Date: Mon Sep 07 2015 - 22:10:58 EST

Hi Paolo, Stephen,
On 9/8/15 9:35 AM, Stephen Rothwell wrote:
Hi all,

After merging the kvm tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

arch/powerpc/kvm/../../../virt/kvm/kvm_main.c: In function 'grow_halt_poll_ns':
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:1931:2: error: implicit declaration of function 'trace_kvm_halt_poll_ns_grow' [-Werror=implicit-function-declaration]
trace_kvm_halt_poll_ns_grow(vcpu->vcpu_id, val, old);
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c: In function 'shrink_halt_poll_ns':
arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:1945:2: error: implicit declaration of function 'trace_kvm_halt_poll_ns_shrink' [-Werror=implicit-function-declaration]
trace_kvm_halt_poll_ns_shrink(vcpu->vcpu_id, val, old);

Caused by commit

2cbd78244fb2 ("KVM: trace kvm_halt_poll_ns grow/shrink")

I have reverted that commit for today.

I miss place the trace codes under CONFIG_KVM_ASYNC_PF, the patch in the attachment rewrite the commit and fix it. Sorry for that.

Wanpeng Li