linux-kernel - Re: [PATCH v2 03/10] x86: Add a type field to alt

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Message-ID: <20180116225325.pnjepmfeml3yvvgw@pd.tnic>
Date:   Tue, 16 Jan 2018 23:53:25 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        David Woodhouse <dwmw2@...radead.org>,
        linux-kernel@...r.kernel.org, Dave Hansen <dave.hansen@...el.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jun Nakajima <jun.nakajima@...el.com>,
        Asit Mallick <asit.k.mallick@...el.com>
Subject: Re: [PATCH v2 03/10] x86: Add a type field to alt_instr

On Tue, Jan 16, 2018 at 04:49:55PM -0600, Josh Poimboeuf wrote:
> Unfortunately it's against policy to include kernel headers from the
> tools subdirectory, so we generally have to either hard code things like
> this, or have a duplicated header file which needs to be kept in sync.

Yeah, and AFAIR, perf tool guys already have machinery that does check
whether stuff went out of sync and they resync the required definitions.

You could reuse that...

-- 
Regards/Gruss,
    Boris.

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