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Commit a850cef7 authored by Adrian Bunk's avatar Adrian Bunk Committed by Thomas Gleixner
Browse files

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: default avatarAdrian Bunk <bunk@stusta.de>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent fb7ae26d

arch/x86/kernel/topology.c

+3 −3
Original line number Diff line number Diff line
@@ -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);

}

include/asm-x86/cpu.h

+0 −3
Original line number Diff line number Diff line
@@ -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);