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From: Andy Lutomirski <luto@amacapital.net>
Date: Tue, 24 Feb 2015 14:25:00 -0800
Message-ID: <CALCETrVretXX1Wgx9TNQH67XH=M6fGA+L+7agyp0Fm8503Ey9w@mail.gmail.com>
Subject: Re: [PATCH 1/4] x86: entry.S: tidy up several suboptimal insns
To: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@kernel.org>,
        Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
        Oleg Nesterov <oleg@redhat.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Alexei Starovoitov <ast@plumgrid.com>, Will Drewry <wad@chromium.org>,
        Kees Cook <keescook@chromium.org>, X86 ML <x86@kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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On Tue, Feb 24, 2015 at 10:51 AM, Denys Vlasenko <dvlasenk@redhat.com> wrote:
> In all three 32-bit entry points, %eax is zero-extended to %rax.
> It is safe to do 32-bit compare when checking that syscall#
> is not too large.

Applied.  Thanks!
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