Hi all, After merging the kvm-fixes tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: In file included from arch/powerpc/include/asm/kvm_ppc.h:19, from arch/powerpc/include/asm/dbell.h:17, from arch/powerpc/kernel/asm-offsets.c:38: include/linux/kvm_host.h: In function 'kvm_vcpu_can_poll': include/linux/kvm_host.h:270:9: error: implicit declaration of function 'single_task_running' [-Werror=implicit-function-declaration] 270 | return single_task_running() && !need_resched() && ktime_before(cur, stop); | ^~~~~~~~~~~~~~~~~~~ Caused by commit 85d4c3baeb45 ("KVM: PPC: exit halt polling on need_resched()") I have used the kvm-fixes tree from next-20210524 again today. -- Cheers, Stephen Rothwell