From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754545AbcGHKuY (ORCPT ); Fri, 8 Jul 2016 06:50:24 -0400 Received: from mail-wm0-f45.google.com ([74.125.82.45]:38029 "EHLO mail-wm0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754187AbcGHKuS (ORCPT ); Fri, 8 Jul 2016 06:50:18 -0400 Date: Fri, 8 Jul 2016 12:50:12 +0200 From: Daniel Lezcano To: Jisheng Zhang Cc: lorenzo.pieralisi@arm.com, lina.iyer@linaro.org, linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 2/2] ARM: cpuidle: make arm_cpuidle_suspend() a bit more efficient Message-ID: <20160708105012.GA32305@linaro.org> References: <1467785755-3488-1-git-send-email-jszhang@marvell.com> <1467785755-3488-3-git-send-email-jszhang@marvell.com> <20160707134628.GB20553@linaro.org> <20160708141729.3fa61c10@xhacker> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160708141729.3fa61c10@xhacker> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 08, 2016 at 02:17:29PM +0800, Jisheng Zhang wrote: > Dear Daniel, > > On Thu, 7 Jul 2016 15:46:28 +0200 Daniel Lezcano wrote: > > > On Wed, Jul 06, 2016 at 02:15:55PM +0800, Jisheng Zhang wrote: > > > Currently, we check cpuidle_ops.suspend every time when entering a > > > low-power idle state. But this check could be avoided in this hot path > > > by moving it into arm_cpuidle_read_ops() to reduce arm_cpuidle_suspend > > > overhead a bit. > > > > > > Signed-off-by: Jisheng Zhang > > > --- > > > > Acked-by: Daniel Lezcano > > I'm not sure the upstream merging path this patch should follow, Per my > understanding, I need to put it into Russell's PATCH system. Or alternatively through arm-soc -- Daniel