On Wed, Nov 25, 2020 at 06:11:30PM +0800, Tiezhu Yang wrote:
> After commit 9cce844abf07 ("MIPS: CPU#0 is not hotpluggable"),
> c->hotpluggable is 0 for CPU 0 and it will not generate a control
> file in sysfs for this CPU:
>
> [root@linux loongson]# cat /sys/devices/system/cpu/cpu0/online
> cat: /sys/devices/system/cpu/cpu0/online: No such file or directory
> [root@linux loongson]# echo 0 > /sys/devices/system/cpu/cpu0/online
> bash: /sys/devices/system/cpu/cpu0/online: Permission denied
>
> So no need to check CPU 0 in {loongson3,bmips,octeon}_cpu_disable(),
> just remove them.
>
> Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn>
> ---
> arch/mips/cavium-octeon/smp.c | 3 ---
> arch/mips/kernel/smp-bmips.c | 3 ---
> arch/mips/loongson64/smp.c | 3 ---
> 3 files changed, 9 deletions(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
