On Tue, 2018-09-25 at 18:27 +0200, Peter Zijlstra wrote: > On Fri, Sep 21, 2018 at 08:03:25AM -0700, Yu-cheng Yu wrote: > > > diff --git a/arch/x86/kernel/cpu/scattered.c > > b/arch/x86/kernel/cpu/scattered.c > > index 772c219b6889..63cbb4d9938e 100644 > > --- a/arch/x86/kernel/cpu/scattered.c > > +++ b/arch/x86/kernel/cpu/scattered.c > > @@ -21,6 +21,7 @@ struct cpuid_bit { > > static const struct cpuid_bit cpuid_bits[] = { > > { X86_FEATURE_APERFMPERF, CPUID_ECX, 0, 0x00000006, 0 }, > > { X86_FEATURE_EPB, CPUID_ECX, 3, 0x00000006, 0 }, > > + { X86_FEATURE_IBT, CPUID_EDX, 20, 0x00000007, 0}, > > ^^ > missing white space at the end there. I will fix it. Thanks!