From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754638Ab2EHMac (ORCPT ); Tue, 8 May 2012 08:30:32 -0400 Received: from terminus.zytor.com ([198.137.202.10]:54815 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753832Ab2EHMab (ORCPT ); Tue, 8 May 2012 08:30:31 -0400 Date: Tue, 8 May 2012 05:30:17 -0700 From: tip-bot for Thomas Gleixner Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, benh@kernel.crashing.org, peterz@infradead.org, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, benh@kernel.crashing.org, peterz@infradead.org, tglx@linutronix.de In-Reply-To: <20120507175652.330322737@linutronix.de> References: <20120507175652.330322737@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:smp/hotplug] powerpc: Remove unused cpu_idle_wait() Git-Commit-ID: c9b92b840705542a1ae50b5407154a5595d17359 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 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Tue, 08 May 2012 05:30:23 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: c9b92b840705542a1ae50b5407154a5595d17359 Gitweb: http://git.kernel.org/tip/c9b92b840705542a1ae50b5407154a5595d17359 Author: Thomas Gleixner AuthorDate: Mon, 7 May 2012 17:59:50 +0000 Committer: Thomas Gleixner CommitDate: Tue, 8 May 2012 12:35:07 +0200 powerpc: Remove unused cpu_idle_wait() cpuidle uses a generic function now. Remove the cruft. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Benjamin Herrenschmidt Link: http://lkml.kernel.org/r/20120507175652.330322737@linutronix.de --- arch/powerpc/Kconfig | 4 ---- arch/powerpc/include/asm/processor.h | 1 - arch/powerpc/kernel/idle.c | 19 ------------------- 3 files changed, 0 insertions(+), 24 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c815535..296e4f9 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -87,10 +87,6 @@ config ARCH_HAS_ILOG2_U64 bool default y if 64BIT -config ARCH_HAS_CPU_IDLE_WAIT - bool - default y - config GENERIC_HWEIGHT bool default y diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 8e2d037..48a26d3 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -386,7 +386,6 @@ extern unsigned long cpuidle_disable; enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF}; extern int powersave_nap; /* set if nap mode can be used in idle loop */ -void cpu_idle_wait(void); #ifdef CONFIG_PSERIES_IDLE extern void update_smt_snooze_delay(int snooze); diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index 04d7909..2099d9a 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -113,25 +113,6 @@ void cpu_idle(void) } } -static void do_nothing(void *unused) -{ -} - -/* - * cpu_idle_wait - Used to ensure that all the CPUs come out of the old - * idle loop and start using the new idle loop. - * Required while changing idle handler on SMP systems. - * Caller must have changed idle handler to the new value before the call. - * This window may be larger on shared systems. - */ -void cpu_idle_wait(void) -{ - smp_mb(); - /* kick all the CPUs so that they exit out of pm_idle */ - smp_call_function(do_nothing, NULL, 1); -} -EXPORT_SYMBOL_GPL(cpu_idle_wait); - int powersave_nap; #ifdef CONFIG_SYSCTL