sched_ext: Make scx_rq_bypassing() inline

scx_rq_bypassing() is used both from ext.c and ext_idle.c, move it to
ext.h as a static inline function.

No functional changes.

Signed-off-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

kernel/sched/ext.c

@@ -1701,11 +1701,6 @@ static bool scx_tryset_enable_state(enum scx_enable_state to,
 	return atomic_try_cmpxchg(&scx_enable_state_var, &from_v, to);
 }
 
-static bool scx_rq_bypassing(struct rq *rq)
-{
-	return unlikely(rq->scx.flags & SCX_RQ_BYPASSING);
-}
-
 /**
  * wait_ops_state - Busy-wait the specified ops state to end
  * @p: target task

kernel/sched/ext.h

@@ -13,6 +13,11 @@ static inline bool scx_kf_allowed_if_unlocked(void)
 	return !current->scx.kf_mask;
 }
 
+static inline bool scx_rq_bypassing(struct rq *rq)
+{
+	return unlikely(rq->scx.flags & SCX_RQ_BYPASSING);
+}
+
 DECLARE_STATIC_KEY_FALSE(scx_ops_allow_queued_wakeup);
 
 void scx_tick(struct rq *rq);