linux-kernel - Re: [GIT pull] x86/pti updates for 4.15

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Message-ID: <alpine.DEB.2.20.1801150014500.2371@nanos>
Date:   Mon, 15 Jan 2018 00:16:01 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
cc:     David Woodhouse <dwmw@...zon.co.uk>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [GIT pull] x86/pti updates for 4.15

On Sun, 14 Jan 2018, Linus Torvalds wrote:

> On Sun, Jan 14, 2018 at 1:01 PM, Thomas Gleixner <tglx@...utronix.de> wrote:
> >
> > Good point. I'll queue a patch to that effect or do you just want to do
> > that yourself?
> 
> I don't think it's critical, and I don't care for rc8, so it's not
> timing-sensitive.

The removal patch can be pulled from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-pti-for-linus

It's better we get rid of it now.

Thanks,

	tglx

------------------>
Thomas Gleixner (1):
      x86/retpoline: Remove compile time warning


 arch/x86/Makefile | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 974c61864978..504b1a4535ac 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -240,8 +240,6 @@ ifdef CONFIG_RETPOLINE
     RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch=thunk-extern -mindirect-branch-register)
     ifneq ($(RETPOLINE_CFLAGS),)
         KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -DRETPOLINE
-    else
-        $(warning CONFIG_RETPOLINE=y, but not supported by the compiler. Toolchain update recommended.)
     endif
 endif