From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752273AbbAPJSm (ORCPT ); Fri, 16 Jan 2015 04:18:42 -0500 Received: from down.free-electrons.com ([37.187.137.238]:60458 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751256AbbAPJR7 (ORCPT ); Fri, 16 Jan 2015 04:17:59 -0500 From: Alexandre Belloni To: Thomas Gleixner Cc: John Stultz , Daniel Lezcano , Nicolas Ferre , Boris Brezillon , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [RFC 2/2] clocksource: don't suspend/resume when unused Date: Fri, 16 Jan 2015 10:17:54 +0100 Message-Id: <1421399874-29119-3-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1421399874-29119-1-git-send-email-alexandre.belloni@free-electrons.com> References: <1421399874-29119-1-git-send-email-alexandre.belloni@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is no point in calling suspend/resume for unused clocksources. Signed-off-by: Alexandre Belloni --- kernel/time/clocksource.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 920a4da58eb0..baea4e42ae90 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -493,7 +493,7 @@ void clocksource_suspend(void) struct clocksource *cs; list_for_each_entry_reverse(cs, &clocksource_list, list) - if (cs->suspend) + if (cs->suspend && (cs->flags & CLOCK_SOURCE_USED)) cs->suspend(cs); } @@ -505,7 +505,7 @@ void clocksource_resume(void) struct clocksource *cs; list_for_each_entry(cs, &clocksource_list, list) - if (cs->resume) + if (cs->resume && (cs->flags & CLOCK_SOURCE_USED)) cs->resume(cs); clocksource_resume_watchdog(); -- 2.1.0