From: Haiwei Li <lihaiwei@xxxxxxxxxxx> Hi, There is a old version patch of 'KVM: Check the allocation of pv cpu mask' in upstream. The v2 and what is discussed is in url: https://lore.kernel.org/kvm/87o8mlooki.fsf@xxxxxxxxxxxxxxxxxxxx/ In this patch, i fix the build error and make changes as suggested. Haiwei Li (2): KVM: Fix the build error KVM: Check if __pv_cpu_mask was allocated instead of assigning ops too late arch/x86/kernel/kvm.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) -- 2.18.4