On (21/05/21 10:35), kernel test robot wrote:
> 
>    In file included from arch/powerpc/include/asm/epapr_hcalls.h:53,
>                     from arch/powerpc/include/uapi/asm/kvm_para.h:82,
>                     from arch/powerpc/include/asm/kvm_para.h:13,
>                     from kernel/rcu/tree_stall.h:10,
>                     from kernel/rcu/tree.c:4783:

I think I #include wrong header.

It should be

#include <linux/kvm_para.h>

not

#include <asm/kvm_para.h>