linux-kernel - Re: [RFC PATCH v4 01/27] x86/cpufeatures: Add CPUIDs for Control-flow Enforcement Technology (CET)

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Message-ID: <309a30584a56babbd4d25199f71b786442300c1e.camel@intel.com>
Date:   Tue, 25 Sep 2018 09:29:51 -0700
From:   Yu-cheng Yu <yu-cheng.yu@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-mm@...ck.org,
        linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>,
        Andy Lutomirski <luto@...capital.net>,
        Balbir Singh <bsingharora@...il.com>,
        Cyrill Gorcunov <gorcunov@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Florian Weimer <fweimer@...hat.com>,
        "H.J. Lu" <hjl.tools@...il.com>, Jann Horn <jannh@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Oleg Nesterov <oleg@...hat.com>, Pavel Machek <pavel@....cz>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Ravi V. Shankar" <ravi.v.shankar@...el.com>,
        Vedvyas Shanbhogue <vedvyas.shanbhogue@...el.com>
Subject: Re: [RFC PATCH v4 01/27] x86/cpufeatures: Add CPUIDs for
 Control-flow Enforcement Technology (CET)

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!