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[198.145.29.99]) by mx.google.com with ESMTPS id o20si25872pjp.48.2019.06.06.13.28.42 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Jun 2019 13:28:42 -0700 (PDT) Received-SPF: pass (google.com: domain of luto@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=t2yJVjGS; spf=pass (google.com: domain of luto@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=luto@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 255F720B7C for ; Thu, 6 Jun 2019 20:28:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559852922; bh=7dtJJy+tpf1euG0sliaeXpcZWtPy4t0cTCPj40HG3Gc=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=t2yJVjGScNVAceTq64NgeNXeja0FCFjw2J41UevfqpsJ6YUmmYc3K+axFdZgrqoNG C2AFooBLHsfBQPFkZFLDhZOpkV8pWCqBrBk+Gm5E0fJSf8nVZ02y7HDywrc4PNgA0e TOjlgx5CqdRDt/Fp31naUp8cvXov8xmEnxZSVXlM= Received: by mail-wr1-f51.google.com with SMTP id x4so3747717wrt.6 for ; Thu, 06 Jun 2019 13:28:42 -0700 (PDT) X-Received: by 2002:adf:f2c8:: with SMTP id d8mr4520549wrp.221.1559852920790; Thu, 06 Jun 2019 13:28:40 -0700 (PDT) MIME-Version: 1.0 References: <20190606200926.4029-1-yu-cheng.yu@intel.com> <20190606200926.4029-12-yu-cheng.yu@intel.com> In-Reply-To: <20190606200926.4029-12-yu-cheng.yu@intel.com> From: Andy Lutomirski Date: Thu, 6 Jun 2019 13:28:29 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v7 11/14] x86/vsyscall/64: Add ENDBR64 to vsyscall entry points To: Yu-cheng Yu Cc: X86 ML , "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , LKML , "open list:DOCUMENTATION" , Linux-MM , linux-arch , Linux API , Arnd Bergmann , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Jun 6, 2019 at 1:17 PM Yu-cheng Yu wrote: > > From: "H.J. Lu" > > Add ENDBR64 to vsyscall entry points. I'm still okay with this patch, but this is rather silly. If anyone actually executes this code, they're doing it wrong. --Andy