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Commit 59909e23 authored by Huacai Chen's avatar Huacai Chen Committed by Greg Kroah-Hartman
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MIPS: CPU#0 is not hotpluggable 



commit 9cce844abf07b683cff5f0273977d5f8d0af94c7 upstream.

Now CPU#0 is not hotpluggable on MIPS, so prevent to create /sys/devices
/system/cpu/cpu0/online which confuses some user-space tools.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarHuacai Chen <chenhc@lemote.com>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d3c9e815

arch/mips/kernel/topology.c

+1 −1
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ static int __init topology_init(void) 
	for_each_present_cpu(i) {

		struct cpu *c = &per_cpu(cpu_devices, i);



		c->hotpluggable = 1;

		c->hotpluggable = !!i;

		ret = register_cpu(c, i);

		if (ret)

			printk(KERN_WARNING "topology_init: register_cpu %d "