From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751729AbcBAIFZ (ORCPT ); Mon, 1 Feb 2016 03:05:25 -0500 Received: from terminus.zytor.com ([198.137.202.10]:54834 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751610AbcBAIFW (ORCPT ); Mon, 1 Feb 2016 03:05:22 -0500 Date: Mon, 1 Feb 2016 00:04:21 -0800 From: tip-bot for Andy Lutomirski Message-ID: Cc: hpa@zytor.com, mingo@kernel.org, peterz@infradead.org, bp@alien8.de, luto@amacapital.net, tglx@linutronix.de, torvalds@linux-foundation.org, dvlasenk@redhat.com, brgerst@gmail.com, luto@kernel.org, bp@suse.de, linux-kernel@vger.kernel.org Reply-To: torvalds@linux-foundation.org, tglx@linutronix.de, peterz@infradead.org, mingo@kernel.org, hpa@zytor.com, luto@amacapital.net, bp@alien8.de, luto@kernel.org, dvlasenk@redhat.com, brgerst@gmail.com, linux-kernel@vger.kernel.org, bp@suse.de In-Reply-To: <3de0ca692fa8bf414c5e3d7afe3e6195d1a10e1f.1454261517.git.luto@kernel.org> References: <3de0ca692fa8bf414c5e3d7afe3e6195d1a10e1f.1454261517.git.luto@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/asm] x86/syscalls/64: Mark sys_iopl() as using ptregs Git-Commit-ID: bb56968a37a44070de92d5690c4b08dd98a5d3f1 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: bb56968a37a44070de92d5690c4b08dd98a5d3f1 Gitweb: http://git.kernel.org/tip/bb56968a37a44070de92d5690c4b08dd98a5d3f1 Author: Andy Lutomirski AuthorDate: Sun, 31 Jan 2016 09:33:28 -0800 Committer: Ingo Molnar CommitDate: Mon, 1 Feb 2016 08:53:25 +0100 x86/syscalls/64: Mark sys_iopl() as using ptregs sys_iopl() both reads and writes pt_regs->flags. Mark it as using ptregs. This isn't strictly necessary, as pt_regs->flags is available even in the fast path, but this is very lightweight now that we have syscall qualifiers and it could avoid some pain down the road. Reported-and-tested-by: Borislav Petkov Signed-off-by: Andy Lutomirski Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/3de0ca692fa8bf414c5e3d7afe3e6195d1a10e1f.1454261517.git.luto@kernel.org Signed-off-by: Ingo Molnar --- arch/x86/entry/syscalls/syscall_64.tbl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index dcf107c..2e5b565 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -178,7 +178,7 @@ 169 common reboot sys_reboot 170 common sethostname sys_sethostname 171 common setdomainname sys_setdomainname -172 common iopl sys_iopl +172 common iopl sys_iopl/ptregs 173 common ioperm sys_ioperm 174 64 create_module 175 common init_module sys_init_module