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Date:   Mon, 08 Feb 2021 10:19:33 -0500
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Subject: =?UTF-8?Q?Re=3A_PROBLEM=3A_5=2E11=2E0-rc7_fail?= =?UTF-8?Q?s_to_compile_with_error=3A_=E2=80=98-m?= =?UTF-8?Q?indirect-branch=E2=80=99_and_=E2=80=98-fcf-p?= =?UTF-8?Q?rotection=E2=80=99_are_not_compatible?=
To:     Borislav Petkov <bp@suse.de>
CC:     Andrey Ryabinin <aryabinin@virtuozzo.com>,
        Alexander Potapenko <glider@google.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Marco Elver <elver@google.com>, Arnd Bergmann <arnd@arndb.de>,
        linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
        kasan-dev@googlegroups.com, jpoimboe@redhat.com, nborisov@suse.com,
        seth.forshee@canonical.com, yamada.masahiro@socionext.com
From:   AC <achirvasub@gmail.com>
Message-ID: <82FA27E6-A46F-41E2-B7D3-2FEBEA8A4D70@gmail.com>
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That did fix it, thank you!

On February 8, 2021 7:12:27 AM EST, Borislav Petkov <bp@suse=2Ede> wrote:
>On Sun, Feb 07, 2021 at 07:40:32PM -0500, Stuart Little wrote:
>> > On Sun, Feb 07, 2021 at 06:31:22PM -0500, Stuart Little wrote:
>> > > I am trying to compile on an x86_64 host for a 32-bit system; my
>config is at
>> > >=20
>> > > https://termbin=2Ecom/v8jl
>> > >=20
>> > > I am getting numerous errors of the form
>> > >=20
>> > > =2E/include/linux/kasan-checks=2Eh:17:1: error: =E2=80=98-mindirect=
-branch=E2=80=99
>and =E2=80=98-fcf-protection=E2=80=99 are not compatible
>
>Does this fix it?
>
>---
>
>diff --git a/arch/x86/Makefile b/arch/x86/Makefile
>index 5857917f83ee=2E=2E30920d70b48b 100644
>--- a/arch/x86/Makefile
>+++ b/arch/x86/Makefile
>@@ -50,6 +50,9 @@ export BITS
> KBUILD_CFLAGS +=3D -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
> KBUILD_CFLAGS +=3D $(call cc-option,-mno-avx,)
>=20
>+# Intel CET isn't enabled in the kernel
>+KBUILD_CFLAGS +=3D $(call cc-option,-fcf-protection=3Dnone)
>+
> ifeq ($(CONFIG_X86_32),y)
>         BITS :=3D 32
>         UTS_MACHINE :=3D i386
>@@ -120,9 +123,6 @@ else
>=20
>         KBUILD_CFLAGS +=3D -mno-red-zone
>         KBUILD_CFLAGS +=3D -mcmodel=3Dkernel
>-
>-	# Intel CET isn't enabled in the kernel
>-	KBUILD_CFLAGS +=3D $(call cc-option,-fcf-protection=3Dnone)
> endif
>=20
> ifdef CONFIG_X86_X32