linux-kernel - Re: [PATCH 01/18] x86/asm/64: Remove the restore_c_regs_and

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Message-ID: <20171026150743.GE12068@nazgul.tnic>
Date:   Thu, 26 Oct 2017 17:07:43 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     X86 ML <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Brian Gerst <brgerst@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 01/18] x86/asm/64: Remove the restore_c_regs_and_iret
 label

On Thu, Oct 26, 2017 at 01:26:33AM -0700, Andy Lutomirski wrote:
> The only user was the 64-bit opportunistic SYSRET failure path, and
> that path didn't really need it.  This change makes the
> opportunistic SYSRET code a bit more straightforward and gets rid of
> the label.
> 
> Signed-off-by: Andy Lutomirski <luto@...nel.org>
> ---
>  arch/x86/entry/entry_64.S | 5 ++---
>  1 file changed, 2 insertions(+), 3 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)
--