[16/21] x86/topology: convert to use arch_cpu_is_hotpluggable()

Commit Message

Russell King (Oracle) Nov. 21, 2023, 1:45 p.m. UTC

Convert x86 to use the arch_cpu_is_hotpluggable() helper rather than
arch_register_cpu().

Reviewed-by: Gavin Shan <[e-mail]>
Signed-off-by: Russell King (Oracle) <[e-mail]>
---
 arch/x86/kernel/topology.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

Comments

Jonathan Cameron Nov. 30, 2023, 4:55 p.m. UTC | #1

On Tue, 21 Nov 2023 13:45:12 +0000
"Russell King (Oracle)" <[e-mail]> wrote:

> Convert x86 to use the arch_cpu_is_hotpluggable() helper rather than
> arch_register_cpu().
> 
> Reviewed-by: Gavin Shan <[e-mail]>
> Signed-off-by: Russell King (Oracle) <[e-mail]>
Reviewed-by: Jonathan Cameron <[e-mail]>

Patch

diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 211863cb5b81..d42c28b8bfd8 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -36,11 +36,8 @@ 
 #include <asm/cpu.h>
 
 #ifdef CONFIG_HOTPLUG_CPU
-int arch_register_cpu(int cpu)
+bool arch_cpu_is_hotpluggable(int cpu)
 {
-	struct cpu *c = per_cpu_ptr(&cpu_devices, cpu);
-
-	c->hotpluggable = cpu > 0;
-	return register_cpu(c, cpu);
+	return cpu > 0;
 }
 #endif /* CONFIG_HOTPLUG_CPU */