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| author | Huacai Chen <chenhc@lemote.com> | 2020-07-16 18:40:23 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 09:48:18 +0200 |
| commit | f9bff9442312af9117723e4d32c11cfbb9d93afa (patch) | |
| tree | e4ea200bed11e8190fc42b374f18c3ad99c2d5fa | |
| parent | 737e3834e607f86f74d45dce6eb1ca6f4a711c1a (diff) | |
| download | linux-f9bff9442312af9117723e4d32c11cfbb9d93afa.tar.gz linux-f9bff9442312af9117723e4d32c11cfbb9d93afa.tar.bz2 linux-f9bff9442312af9117723e4d32c11cfbb9d93afa.zip | |
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: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/mips/kernel/topology.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c index cd3e1f82e1a5..08ad6371fbe0 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 " |