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Date:   Tue, 25 Sep 2018 21:08:29 +0200
From:   Borislav Petkov <>
To:     Nick Desaulniers <>
Cc:     Thomas Gleixner <>,,,,
        "Kirill A . Shutemov" <>,
        Masahiro Yamada <>,
        Matthias Kaehlcke <>,
        Kees Cook <>,
        Cao jin <>,
        LKML <>
Subject: Re: [PATCH] x86/boot: define CC_HAVE_ASM_GOTO

On Tue, Sep 25, 2018 at 11:41:19AM -0700, Nick Desaulniers wrote:
> bumping for review.
> On Fri, Sep 7, 2018 at 1:26 PM Nick Desaulniers <> wrote:
> >
> > Since this file steamrolls KBUILD_CFLAGS, we have to redefine these
> > symbols.

Why do we have to redefine these symbols?

I don't see arch/x86/boot/ using asm_volatile_goto() and
CC_HAVE_ASM_GOTO anywhere.

> > This will prevent warnings in source files in this directory
> > when Clang supports asm goto.

This statement I can't grok either. Maybe I'm slow or maybe I need more
background info...



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