From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Lutomirski <luto@kernel.org>
Subject: Re: [PATCH v7 09/14] x86/vdso: Insert endbr32/endbr64 to vDSO
Date: Thu, 6 Jun 2019 13:26:34 -0700
Message-ID: <CALCETrVhw4U939E2RorUMorxx8VqLyg2Zm8qEMUSM5pX+cc2FQ@mail.gmail.com>
References: <20190606200926.4029-1-yu-cheng.yu@intel.com> <20190606200926.4029-10-yu-cheng.yu@intel.com>
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To: Yu-cheng Yu <yu-cheng.yu@intel.com>
Cc: X86 ML <x86@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, LKML <linux-kernel@vger.kernel.org>, "open list:DOCUMENTATION" <linux-doc@vger.kernel.org>, Linux-MM <linux-mm@kvack.org>, linux-arch <linux-arch@vger.kernel.org>, Linux API <linux-api@vger.kernel.org>, Arnd Bergmann <arnd@arndb.de>, Balbir Singh <bsingharora@gmail.com>, Borislav Petkov <bp@alien8.de>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.com>, Eugene Syromiatnikov <esyr@redhat.com>, Florian Weimer <fweimer@redhat.com>, "H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>, Kees Cook <keescook@chromium.org>, Mike Kravetz <mike.kravetz@or>
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On Thu, Jun 6, 2019 at 1:17 PM Yu-cheng Yu <yu-cheng.yu@intel.com> wrote:
>
> From: "H.J. Lu" <hjl.tools@gmail.com>
>
> When Intel indirect branch tracking is enabled, functions in vDSO which
> may be called indirectly must have endbr32 or endbr64 as the first
> instruction.  Compiler must support -fcf-protection=branch so that it
> can be used to compile vDSO.

Acked-by: Andy Lutomirski <luto@kernel.org>

>
> Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

You're still missing your Signed-off-by.