From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756798Ab2EGSBV (ORCPT ); Mon, 7 May 2012 14:01:21 -0400 Received: from www.linutronix.de ([62.245.132.108]:41397 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753604Ab2EGR7v (ORCPT ); Mon, 7 May 2012 13:59:51 -0400 Message-Id: <20120507175652.330322737@linutronix.de> User-Agent: quilt/0.48-1 Date: Mon, 07 May 2012 17:59:50 -0000 From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Benjamin Herrenschmidt Subject: [patch 6/8] powerpc: Remove unused cpu_idle_wait() References: <20120507175450.513667947@linutronix.de> Content-Disposition: inline; filename=powerpc-use-kick_all_cpus_sync.patch X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org cpuidle uses a generic function now. Remove the cruft. Signed-off-by: Thomas Gleixner Cc: Benjamin Herrenschmidt --- arch/powerpc/Kconfig | 4 ---- arch/powerpc/include/asm/processor.h | 1 - arch/powerpc/kernel/idle.c | 19 ------------------- 3 files changed, 24 deletions(-) Index: tip/arch/powerpc/Kconfig =================================================================== --- tip.orig/arch/powerpc/Kconfig +++ tip/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 Index: tip/arch/powerpc/include/asm/processor.h =================================================================== --- tip.orig/arch/powerpc/include/asm/processor.h +++ tip/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); Index: tip/arch/powerpc/kernel/idle.c =================================================================== --- tip.orig/arch/powerpc/kernel/idle.c +++ tip/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