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Message-ID: <f8d52f40-221b-5219-ca16-9d889252547a@linux.com>
Date: Wed, 24 Jun 2020 15:56:54 +0300
From: Alexander Popov <alex.popov@...ux.com>
To: Luis Chamberlain <mcgrof@...nel.org>
Cc: Kees Cook <keescook@...omium.org>, Jann Horn <jannh@...gle.com>,
Emese Revfy <re.emese@...il.com>,
Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
Andrew Morton <akpm@...ux-foundation.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Thiago Jung Bauermann <bauerman@...ux.ibm.com>, Jessica Yu
<jeyu@...nel.org>, Sven Schnelle <svens@...ckframe.org>,
Iurii Zaikin <yzaikin@...gle.com>, Catalin Marinas
<catalin.marinas@....com>, Will Deacon <will@...nel.org>,
Vincenzo Frascino <vincenzo.frascino@....com>,
Thomas Gleixner <tglx@...utronix.de>, Peter Collingbourne <pcc@...gle.com>,
Naohiro Aota <naohiro.aota@....com>, Alexander Monakov <amonakov@...ras.ru>,
Mathias Krause <minipli@...glemail.com>, PaX Team <pageexec@...email.hu>,
Brad Spengler <spender@...ecurity.net>, Laura Abbott <labbott@...hat.com>,
Florian Weimer <fweimer@...hat.com>, kernel-hardening@...ts.openwall.com,
linux-kbuild@...r.kernel.org, x86@...nel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
gcc@....gnu.org, notify@...nel.org
Subject: Re: [PATCH v2 2/5] ARM: vdso: Don't use gcc plugins for building
vgettimeofday.c
On 24.06.2020 15:52, Luis Chamberlain wrote:
> On Wed, Jun 24, 2020 at 03:33:27PM +0300, Alexander Popov wrote:
>> Don't use gcc plugins for building arch/arm/vdso/vgettimeofday.c to
>> avoid unneeded instrumentation.
>>
>> Signed-off-by: Alexander Popov <alex.popov@...ux.com>
>
> But why is skipping it safe?
Hello Luis,
Kees and Will discussed that in detail in v1 of the series:
https://lore.kernel.org/lkml/20200610073046.GA15939@willie-the-truck/
Best regards,
Alexander
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