diff options
| author | James Morse <james.morse@arm.com> | 2023-11-21 16:45:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-06 06:41:50 +0300 |
| commit | 0d122fb60046cd888877a6029cc23863d4a1b9e3 (patch) | |
| tree | e9082adc63456fdab24c955519b32e89387b9f45 /arch/loongarch | |
| parent | db3ba29a8315d89736b8af5c1ad945c9967d7655 (diff) | |
| download | linux-0d122fb60046cd888877a6029cc23863d4a1b9e3.tar.xz | |
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>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/E1r5R46-00Ct0A-GJ@rmk-PC.armlinux.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/loongarch')
| -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 |