* [PATCH] MIPS: CPU#0 is not hotpluggable
@ 2020-07-15 5:35 Huacai Chen
2020-07-15 7:56 ` Sergei Shtylyov
0 siblings, 1 reply; 3+ messages in thread
From: Huacai Chen @ 2020-07-15 5:35 UTC (permalink / raw)
To: Thomas Bogendoerfer
Cc: linux-mips, Fuxin Zhang, Zhangjin Wu, Huacai Chen, Jiaxun Yang,
Huacai Chen, stable
Now CPU#0 is not hotpluggable on MIPS, so prevent to create /sys/devices
/system/cpu/cpu0/online which confusing some user-space tools.
Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhc@lemote.com>
---
arch/mips/kernel/topology.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c
index cd3e1f8..08ad637 100644
--- a/arch/mips/kernel/topology.c
+++ b/arch/mips/kernel/topology.c
@@ -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 "
--
2.7.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] MIPS: CPU#0 is not hotpluggable
2020-07-15 5:35 [PATCH] MIPS: CPU#0 is not hotpluggable Huacai Chen
@ 2020-07-15 7:56 ` Sergei Shtylyov
2020-07-15 8:09 ` Huacai Chen
0 siblings, 1 reply; 3+ messages in thread
From: Sergei Shtylyov @ 2020-07-15 7:56 UTC (permalink / raw)
To: Huacai Chen, Thomas Bogendoerfer
Cc: linux-mips, Fuxin Zhang, Zhangjin Wu, Huacai Chen, Jiaxun Yang,
stable
Hello!
On 15.07.2020 8:35, Huacai Chen wrote:
> Now CPU#0 is not hotpluggable on MIPS, so prevent to create /sys/devices
> /system/cpu/cpu0/online which confusing some user-space tools.
Confuses?
> Cc: stable@vger.kernel.org
> Signed-off-by: Huacai Chen <chenhc@lemote.com>
[...]
MBR, Sergei
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] MIPS: CPU#0 is not hotpluggable
2020-07-15 7:56 ` Sergei Shtylyov
@ 2020-07-15 8:09 ` Huacai Chen
0 siblings, 0 replies; 3+ messages in thread
From: Huacai Chen @ 2020-07-15 8:09 UTC (permalink / raw)
To: Sergei Shtylyov
Cc: Thomas Bogendoerfer, open list:MIPS, Fuxin Zhang, Zhangjin Wu,
Jiaxun Yang, stable
Hi, Sergei,
On Wed, Jul 15, 2020 at 3:56 PM Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
>
> Hello!
>
> On 15.07.2020 8:35, Huacai Chen wrote:
>
> > Now CPU#0 is not hotpluggable on MIPS, so prevent to create /sys/devices
> > /system/cpu/cpu0/online which confusing some user-space tools.
>
> Confuses?
Yes, this is my fault.
>
> > Cc: stable@vger.kernel.org
> > Signed-off-by: Huacai Chen <chenhc@lemote.com>
> [...]
>
> MBR, Sergei
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-07-15 5:35 [PATCH] MIPS: CPU#0 is not hotpluggable Huacai Chen
2020-07-15 7:56 ` Sergei Shtylyov
2020-07-15 8:09 ` Huacai Chen
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