Hi all, After merging the kvm tree, today's linux-next build (20140311) failed like this: /home/broonie/next/next/arch/x86/kvm/vmx.c: In function 'nested_vmx_setup_ctls_msrs': /home/broonie/next/next/arch/x86/kvm/vmx.c:2292:2: error: implicit declaration of function 'vmx_mpx_supported' [-Werror=implicit-function-declaration] if (vmx_mpx_supported()) ^ /home/broonie/next/next/arch/x86/kvm/vmx.c: At top level: /home/broonie/next/next/arch/x86/kvm/vmx.c:7036:13: error: conflicting types for 'vmx_mpx_supported' static bool vmx_mpx_supported(void) ^ /home/broonie/next/next/arch/x86/kvm/vmx.c:2292:6: note: previous implicit declaration of 'vmx_mpx_supported' was here if (vmx_mpx_supported()) ^ cc1: some warnings being treated as errors make[3]: *** [arch/x86/kvm/vmx.o] Error 1 I have used the version from next-20140307 instead.