x86/cpu: Move leftover contents of topology.c to setup.c

The only useful piece of arch/x86/kernel/topology.c is the definition
of arch_cpu_is_hotpluggable() that can be moved elsewhere (other
architectures tend to put it into setup.c), so do that and delete
the rest of the file.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/12422874.O9o76ZdvQC@kreacher

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 3e1e96efadfe..d50b258a0290 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -7,6 +7,7 @@
  */
 #include <linux/acpi.h>
 #include <linux/console.h>
+#include <linux/cpu.h>
 #include <linux/crash_dump.h>
 #include <linux/dma-map-ops.h>
 #include <linux/dmi.h>
@@ -1227,3 +1228,10 @@ static int __init register_kernel_offset_dumper(void)
 	return 0;
 }
 __initcall(register_kernel_offset_dumper);
+
+#ifdef CONFIG_HOTPLUG_CPU
+bool arch_cpu_is_hotpluggable(int cpu)
+{
+	return cpu > 0;
+}
+#endif /* CONFIG_HOTPLUG_CPU */