Messages in this thread |  | | Date | Fri, 27 Nov 2020 10:32:45 +0100 | From | Thomas Bogendoerfer <> | Subject | Re: [PATCH] MIPS: No need to check CPU 0 in {loongson3,bmips,octeon}_cpu_disable() |
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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 <yangtiezhu@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 ]
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