Multiple sched classes are using sched_smt_present, so move it from
fair.c to core.c, next to the helpers that update its state.

No functional changes.

Signed-off-by: Andrea Righi <arighi@nvidia.com>
---
 kernel/sched/core.c | 5 +++++
 kernel/sched/fair.c | 3 ---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f1ebf67b48e21..87387f3e04dd0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8376,6 +8376,11 @@ static void cpuset_cpu_inactive(unsigned int cpu)
 	}
 }
 
+#ifdef CONFIG_SCHED_SMT
+DEFINE_STATIC_KEY_FALSE(sched_smt_present);
+EXPORT_SYMBOL_GPL(sched_smt_present);
+#endif
+
 static inline void sched_smt_present_inc(int cpu)
 {
 #ifdef CONFIG_SCHED_SMT
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index cee1793e8277a..ef0a1bd26450b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7539,9 +7539,6 @@ static inline int __select_idle_cpu(int cpu, struct task_struct *p)
 }
 
 #ifdef CONFIG_SCHED_SMT
-DEFINE_STATIC_KEY_FALSE(sched_smt_present);
-EXPORT_SYMBOL_GPL(sched_smt_present);
-
 static inline void set_idle_cores(int cpu, int val)
 {
 	struct sched_domain_shared *sds;
-- 
2.51.1