@@ -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_ */
@@ -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);
}
@@ -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
@@ -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);
--
2.30.2
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Provide common prototypes for arch_register_cpu() and
arch_unregister_cpu(). These are called by acpi_processor.c, with
weak versions, so the prototype for this is already set. It is
generally not necessary for function prototypes to be conditional
on preprocessor macros.
Some architectures (e.g. Loongarch) are missing the prototype for this,
and rather than add it to Loongarch's asm/cpu.h, lets do the job once
for everyone.
Since this covers everyone, remove the now unnecessary prototypes in
asm/cpu.h
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
arch/ia64/include/asm/cpu.h | 5 -----
arch/x86/include/asm/cpu.h | 2 --
include/linux/cpu.h | 2 ++
3 files changed, 2 insertions(+), 7 deletions(-)
@@ -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_ */
@@ -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
@@ -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);
Provide common prototypes for arch_register_cpu() and arch_unregister_cpu(). These are called by acpi_processor.c, with weak versions, so the prototype for this is already set. It is generally not necessary for function prototypes to be conditional on preprocessor macros. Some architectures (e.g. Loongarch) are missing the prototype for this, and rather than add it to Loongarch's asm/cpu.h, lets do the job once for everyone. Since this covers everyone, remove the now unnecessary prototypes in asm/cpu.h, and we also need to remove the 'static' from one of ia64's arch_register_cpu() definitions. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> --- Spotted during the review of James Morse's patches, I think rather than adding prototypes for loongarch to its asm/cpu.h, it would make more sense to provide the prototypes in a non-arch specific header file so everyone can benefit, rather than having each architecture do its own thing. I'm sending this as RFC as James has yet to comment on my proposal, and also to a wider audience, and although it makes a little more work for James (to respin his series) it does mean that his series should get a little smaller. See: https://lore.kernel.org/r/20230913163823.7880-2-james.morse@arm.com https://lore.kernel.org/r/20230913163823.7880-4-james.morse@arm.com https://lore.kernel.org/r/20230913163823.7880-23-james.morse@arm.com arch/ia64/include/asm/cpu.h | 5 ----- arch/ia64/kernel/topology.c | 2 +- arch/x86/include/asm/cpu.h | 2 -- include/linux/cpu.h | 2 ++ 4 files changed, 3 insertions(+), 8 deletions(-)