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Fix a Longsoon build warning by harmonizing the arch_[un]register_cpu()

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prototypes between architectures.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'smp-urgent-2023-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull CPU hotplug fix from Ingo Molnar:
 "Fix a Longsoon build warning by harmonizing the
  arch_[un]register_cpu() prototypes between architectures"

* tag 'smp-urgent-2023-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu-hotplug: Provide prototypes for arch CPU registration
This commit is contained in:
Linus Torvalds 2023-10-15 08:44:56 -07:00
commit ddf2085598
7 changed files with 5 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
arch/ia64/include/asm/cpu.h
View file

@ -15,9 +15,4 @@ DECLARE_PER_CPU(struct ia64_cpu, cpu_devices);
DECLARE_PER_CPU(int, cpu_state);
#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
#endif
#endif /* _ASM_IA64_CPU_H_ */

2
arch/ia64/kernel/topology.c
View file

@ -59,7 +59,7 @@ void __ref arch_unregister_cpu(int num)
}
EXPORT_SYMBOL(arch_unregister_cpu);
#else
static int __init arch_register_cpu(int num)
int __init arch_register_cpu(int num)
{
return register_cpu(&sysfs_cpus[num].cpu, num);
}

2
arch/x86/include/asm/cpu.h
View file

@ -28,8 +28,6 @@ struct x86_cpu {
};
#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
extern void soft_restart_cpu(void);
#endif

2
arch/x86/kernel/topology.c
View file

@ -54,7 +54,7 @@ void arch_unregister_cpu(int num)
EXPORT_SYMBOL(arch_unregister_cpu);
#else /* CONFIG_HOTPLUG_CPU */
static int __init arch_register_cpu(int num)
int __init arch_register_cpu(int num)
{
return register_cpu(&per_cpu(cpu_devices, num).cpu, num);
}

1
drivers/acpi/acpi_processor.c
View file

@ -12,6 +12,7 @@
#define pr_fmt(fmt) "ACPI: " fmt
#include <linux/acpi.h>
#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/kernel.h>

5
include/acpi/processor.h
View file

@ -465,9 +465,4 @@ extern int acpi_processor_ffh_lpi_probe(unsigned int cpu);
extern int acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi);
#endif
#ifdef CONFIG_ACPI_HOTPLUG_CPU
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#endif
#endif

2
include/linux/cpu.h
View file

@ -80,6 +80,8 @@ extern __printf(4, 5)
struct device *cpu_device_create(struct device *parent, void *drvdata,
const struct attribute_group **groups,
const char *fmt, ...);
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#ifdef CONFIG_HOTPLUG_CPU
extern void unregister_cpu(struct cpu *cpu);
extern ssize_t arch_cpu_probe(const char *, size_t);