5b72d74ce2
Compiling 2.6.33 with SMP enabled and HOTPLUG_CPU disabled gives me the following link errors: LD init/built-in.o LD .tmp_vmlinux1 arch/powerpc/platforms/built-in.o: In function `.smp_xics_setup_cpu': smp.c:(.devinit.text+0x88): undefined reference to `.set_cpu_current_state' smp.c:(.devinit.text+0x94): undefined reference to `.set_default_offline_state' arch/powerpc/platforms/built-in.o: In function `.smp_pSeries_kick_cpu': smp.c:(.devinit.text+0x13c): undefined reference to `.set_preferred_offline_state' smp.c:(.devinit.text+0x148): undefined reference to `.get_cpu_current_state' smp.c:(.devinit.text+0x1a8): undefined reference to `.get_cpu_current_state' make: *** [.tmp_vmlinux1] Error 1 The following change fixes that for me and seems to work as expected. Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
38 lines
923 B
C
38 lines
923 B
C
#ifndef _OFFLINE_STATES_H_
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#define _OFFLINE_STATES_H_
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/* Cpu offline states go here */
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enum cpu_state_vals {
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CPU_STATE_OFFLINE,
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CPU_STATE_INACTIVE,
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CPU_STATE_ONLINE,
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CPU_MAX_OFFLINE_STATES
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};
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#ifdef CONFIG_HOTPLUG_CPU
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extern enum cpu_state_vals get_cpu_current_state(int cpu);
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extern void set_cpu_current_state(int cpu, enum cpu_state_vals state);
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extern void set_preferred_offline_state(int cpu, enum cpu_state_vals state);
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extern void set_default_offline_state(int cpu);
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#else
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static inline enum cpu_state_vals get_cpu_current_state(int cpu)
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{
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return CPU_STATE_ONLINE;
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}
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static inline void set_cpu_current_state(int cpu, enum cpu_state_vals state)
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{
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}
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static inline void set_preferred_offline_state(int cpu, enum cpu_state_vals state)
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{
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}
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static inline void set_default_offline_state(int cpu)
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{
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}
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#endif
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extern enum cpu_state_vals get_preferred_offline_state(int cpu);
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extern int start_secondary(void);
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#endif
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