[PATCH sched_ext/for-7.2] sched_ext: Collect ext_*.c include headers in build_policy.c

[Tejun Heo]

Move <linux/btf_ids.h> from ext.c and "ext_idle.h" from ext.c (plus its
self-include in ext_idle.c) into build_policy.c. Subsequent patches add
their headers the same way for consistency.

No functional change.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
---
 kernel/sched/build_policy.c | 2 ++
 kernel/sched/ext.c          | 2 --
 kernel/sched/ext_idle.c     | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/build_policy.c b/kernel/sched/build_policy.c
index 755883faf751..ffb386889218 100644
--- a/kernel/sched/build_policy.c
+++ b/kernel/sched/build_policy.c
@@ -58,7 +58,9 @@
 #include "deadline.c"

 #ifdef CONFIG_SCHED_CLASS_EXT
+# include <linux/btf_ids.h>
 # include "ext_internal.h"
+# include "ext_idle.h"
 # include "ext.c"
 # include "ext_idle.c"
 #endif
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index f7b1b16e81a5..11893f00be06 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -6,8 +6,6 @@
  * Copyright (c) 2022 Tejun Heo <tj@xxxxxxxxxx>
  * Copyright (c) 2022 David Vernet <dvernet@xxxxxxxx>
  */
-#include <linux/btf_ids.h>
-#include "ext_idle.h"

 static DEFINE_RAW_SPINLOCK(scx_sched_lock);

diff --git a/kernel/sched/ext_idle.c b/kernel/sched/ext_idle.c
index 7468560a6d80..f0f4d9500997 100644
--- a/kernel/sched/ext_idle.c
+++ b/kernel/sched/ext_idle.c
@@ -9,7 +9,6 @@
  * Copyright (c) 2022 David Vernet <dvernet@xxxxxxxx>
  * Copyright (c) 2024 Andrea Righi <arighi@xxxxxxxxxx>
  */
-#include "ext_idle.h"

 /* Enable/disable built-in idle CPU selection policy */
 static DEFINE_STATIC_KEY_FALSE(scx_builtin_idle_enabled);
--
2.53.0