linux-kernel - Re: [patch 22/60] x86/entry: Clean up the SYSENTER

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Date:   Mon, 4 Dec 2017 20:41:43 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirsky <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Greg KH <gregkh@...uxfoundation.org>, keescook@...gle.com,
        hughd@...gle.com, Brian Gerst <brgerst@...il.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        Rik van Riel <riel@...hat.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        David Laight <David.Laight@...lab.com>,
        Eduardo Valentin <eduval@...zon.com>, aliguori@...zon.com,
        Will Deacon <will.deacon@....com>, daniel.gruss@...k.tugraz.at,
        Ingo Molnar <mingo@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>
Subject: Re: [patch 22/60] x86/entry: Clean up the SYSENTER_stack code

On Mon, Dec 04, 2017 at 03:07:28PM +0100, Thomas Gleixner wrote:
> From: Andy Lutomirski <luto@...nel.org>
> 
> The existing code was a mess, mainly because C arrays are nasty.  Turn
> SYSENTER_stack into a struct, add a helper to find it, and do all the
> obvious cleanups this enables.
> 
> Signed-off-by: Andy Lutomirski <luto@...nel.org>
> Signed-off-by: Ingo Molnar <mingo@...nel.org>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Rik van Riel <riel@...hat.com>
> Cc: Denys Vlasenko <dvlasenk@...hat.com>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Brian Gerst <brgerst@...il.com>
> Cc: Dave Hansen <dave.hansen@...ux.intel.com>
> Cc: Josh Poimboeuf <jpoimboe@...hat.com>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Link: https://lkml.kernel.org/r/38ff640712c9b591b32de24a080daf13afaba234.1511497875.git.luto@kernel.org
> 
> ---
>  arch/x86/entry/entry_32.S        |    4 ++--
>  arch/x86/entry/entry_64.S        |    2 +-
>  arch/x86/include/asm/fixmap.h    |    5 +++++
>  arch/x86/include/asm/processor.h |    6 +++++-
>  arch/x86/kernel/asm-offsets.c    |    6 ++----
>  arch/x86/kernel/cpu/common.c     |   14 +++-----------
>  arch/x86/kernel/dumpstack.c      |    7 +++----
>  7 files changed, 21 insertions(+), 23 deletions(-)

Reviewed-by: Borislav Petkov <bp@...e.de>

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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