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Date: Wed, 24 Jun 2020 07:46:17 -0700
From: Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH v2 3/5] arm64: vdso: Don't use gcc plugins for building
 vgettimeofday.c
Message-ID: <202006240745.19E4F8BDEA@keescook>
References: <20200624123330.83226-1-alex.popov@linux.com>
 <20200624123330.83226-4-alex.popov@linux.com>
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To: Alexander Popov <alex.popov@linux.com>
Cc: Jann Horn <jannh@google.com>, Emese Revfy <re.emese@gmail.com>, Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>, Masahiro Yamada <masahiroy@kernel.org>, Michal Marek <michal.lkml@markovi.net>, Andrew Morton <akpm@linux-foundation.org>, Masahiro Yamada <yamada.masahiro@socionext.com>, Thiago Jung Bauermann <bauerman@linux.ibm.com>, Luis Chamberlain <mcgrof@kernel.org>, Jessica Yu <jeyu@kernel.org>, Sven Schnelle <svens@stackframe.org>, Iurii Zaikin <yzaikin@google.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Thomas Gleixner <tglx@linutronix.de>, Peter Collingbourne <pcc@google.com>, Naohiro Aota <naohiro.aota@wdc.com>, Alexander Monakov <amonakov@ispras.ru>, Mathias Krause <minipli@googlemail.com>, PaX Team <pageexec@freemail.hu>, Brad Spengler <spender@grsecurity.net>, Laura Abbott <labbott@redhat.com>, Florian Weimer <fweimer@redhat.com>, kernel-hardening@lists.openwall.com, linux-kbuild@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, gcc@gcc.gnu.org, notify@kernel.org

On Wed, Jun 24, 2020 at 03:33:28PM +0300, Alexander Popov wrote:
> Don't use gcc plugins for building arch/arm64/kernel/vdso/vgettimeofday.c
> to avoid unneeded instrumentation.
> 
> Signed-off-by: Alexander Popov <alex.popov@linux.com>

It looks like Will has taken this already, but:

Acked-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook