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-rw-r--r--include/linux/cpu.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index c9b23ad27b38..ccdf3a67ce56 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -178,9 +178,11 @@ enum cpuhp_smt_control {
#if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT)
extern enum cpuhp_smt_control cpu_smt_control;
extern void cpu_smt_disable(bool force);
+extern void cpu_smt_check_topology(void);
#else
# define cpu_smt_control (CPU_SMT_ENABLED)
static inline void cpu_smt_disable(bool force) { }
+static inline void cpu_smt_check_topology(void) { }
#endif
#endif /* _LINUX_CPU_H_ */