diff options
| author | James Morse <james.morse@arm.com> | 2022-07-13 11:24:23 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-12-04 10:14:49 +0000 |
| commit | d4dae8dbb45fa9059976c0258f3f0a90b097823d (patch) | |
| tree | ee51587757f25620ed9c27b25679ef8900ff3eda | |
| parent | e8262650b879f145dd9065a80f44b61a9441b7c5 (diff) | |
LoongArch: Use the __weak version of arch_unregister_cpu()
LoongArch provides its own arch_unregister_cpu(). This clears the
hotpluggable flag, then unregisters the CPU.
It isn't necessary to clear the hotpluggable flag when unregistering
a cpu. unregister_cpu() writes NULL to the percpu cpu_sys_devices
pointer, meaning cpu_is_hotpluggable() will return false, as
get_cpu_device() has returned NULL.
Remove arch_unregister_cpu() and use the __weak version.
Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
Changes since RFC v3:
* Adapt for removal of EXPORT_SYMBOL()s
| -rw-r--r-- | arch/loongarch/kernel/topology.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/loongarch/kernel/topology.c b/arch/loongarch/kernel/topology.c index 7dfb46c68f58..866c2c9ef6ab 100644 --- a/arch/loongarch/kernel/topology.c +++ b/arch/loongarch/kernel/topology.c @@ -18,12 +18,4 @@ int arch_register_cpu(int cpu) c->hotpluggable = !io_master(cpu); return register_cpu(c, cpu); } - -void arch_unregister_cpu(int cpu) -{ - struct cpu *c = &per_cpu(cpu_devices, cpu); - - c->hotpluggable = 0; - unregister_cpu(c); -} #endif |