From a850cef77f148c2e305022a1ed86ca6cff5ee300 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 17 Oct 2007 18:04:38 +0200 Subject: [PATCH] i386: no need to make enable_cpu_hotplug a variable As long as there's no write access to this variable there's no reason to let gcc check it at runtime. [ tglx: arch/x86 adaptation ] Signed-off-by: Adrian Bunk Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/topology.c | 6 +++--- include/asm-x86/cpu.h | 3 --- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index c25f23eb39..8caa0b7774 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -44,15 +44,15 @@ int arch_register_cpu(int num) * Also certain PCI quirks require not to enable hotplug control * for all CPU's. */ - if (num && enable_cpu_hotplug) +#ifdef CONFIG_HOTPLUG_CPU + if (num) cpu_devices[num].cpu.hotpluggable = 1; +#endif return register_cpu(&cpu_devices[num].cpu, num); } #ifdef CONFIG_HOTPLUG_CPU -int enable_cpu_hotplug = 1; - void arch_unregister_cpu(int num) { return unregister_cpu(&cpu_devices[num].cpu); } diff --git a/include/asm-x86/cpu.h b/include/asm-x86/cpu.h index 9d914e1e4a..b1bc7b1b64 100644 --- a/include/asm-x86/cpu.h +++ b/include/asm-x86/cpu.h @@ -13,9 +13,6 @@ struct i386_cpu { extern int arch_register_cpu(int num); #ifdef CONFIG_HOTPLUG_CPU extern void arch_unregister_cpu(int); -extern int enable_cpu_hotplug; -#else -#define enable_cpu_hotplug 0 #endif DECLARE_PER_CPU(int, cpu_state); -- 2.39.5