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Subject[patch V5 1/3] sched: Fix missing prototype warnings
Date
A W=1 build emits more than a dozen missing prototype warnings related to
scheduler and scheduler specific includes.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
V5: New patch
---
include/linux/sched.h | 2 ++
kernel/sched/build_policy.c | 2 ++
kernel/sched/build_utility.c | 1 +
kernel/sched/core.c | 3 +++
kernel/sched/deadline.c | 2 --
kernel/sched/fair.c | 1 +
kernel/sched/sched.h | 8 ++------
kernel/sched/smp.h | 6 ++++++
kernel/stop_machine.c | 2 --
9 files changed, 17 insertions(+), 10 deletions(-)

--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2361,4 +2361,6 @@ static inline void sched_core_free(struc
static inline void sched_core_fork(struct task_struct *p) { }
#endif

+extern void sched_set_stop_task(int cpu, struct task_struct *stop);
+
#endif
--- a/kernel/sched/build_policy.c
+++ b/kernel/sched/build_policy.c
@@ -15,6 +15,7 @@
/* Headers: */
#include <linux/sched/clock.h>
#include <linux/sched/cputime.h>
+#include <linux/sched/hotplug.h>
#include <linux/sched/posix-timers.h>
#include <linux/sched/rt.h>

@@ -31,6 +32,7 @@
#include <uapi/linux/sched/types.h>

#include "sched.h"
+#include "smp.h"

#include "autogroup.h"
#include "stats.h"
--- a/kernel/sched/build_utility.c
+++ b/kernel/sched/build_utility.c
@@ -14,6 +14,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/isolation.h>
#include <linux/sched/loadavg.h>
+#include <linux/sched/nohz.h>
#include <linux/sched/mm.h>
#include <linux/sched/rseq_api.h>
#include <linux/sched/task_stack.h>
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -26,7 +26,10 @@
#include <linux/topology.h>
#include <linux/sched/clock.h>
#include <linux/sched/cond_resched.h>
+#include <linux/sched/cputime.h>
#include <linux/sched/debug.h>
+#include <linux/sched/hotplug.h>
+#include <linux/sched/init.h>
#include <linux/sched/isolation.h>
#include <linux/sched/loadavg.h>
#include <linux/sched/mm.h>
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1220,8 +1220,6 @@ int dl_runtime_exceeded(struct sched_dl_
return (dl_se->runtime <= 0);
}

-extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq);
-
/*
* This function implements the GRUB accounting rule:
* according to the GRUB reclaiming algorithm, the runtime is
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -36,6 +36,7 @@
#include <linux/sched/cond_resched.h>
#include <linux/sched/cputime.h>
#include <linux/sched/isolation.h>
+#include <linux/sched/nohz.h>

#include <linux/cpuidle.h>
#include <linux/interrupt.h>
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1827,12 +1827,7 @@ static inline void dirty_sched_domain_sy
#endif

extern int sched_update_scaling(void);
-
-extern void flush_smp_call_function_from_idle(void);
-
-#else /* !CONFIG_SMP: */
-static inline void flush_smp_call_function_from_idle(void) { }
-#endif
+#endif /* CONFIG_SMP */

#include "stats.h"

@@ -2309,6 +2304,7 @@ extern void resched_cpu(int cpu);

extern struct rt_bandwidth def_rt_bandwidth;
extern void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime);
+extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq);

extern void init_dl_bandwidth(struct dl_bandwidth *dl_b, u64 period, u64 runtime);
extern void init_dl_task_timer(struct sched_dl_entity *dl_se);
--- a/kernel/sched/smp.h
+++ b/kernel/sched/smp.h
@@ -7,3 +7,9 @@
extern void sched_ttwu_pending(void *arg);

extern void send_call_function_single_ipi(int cpu);
+
+#ifdef CONFIG_SMP
+extern void flush_smp_call_function_from_idle(void);
+#else
+static inline void flush_smp_call_function_from_idle(void) { }
+#endif
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -535,8 +535,6 @@ void stop_machine_park(int cpu)
kthread_park(stopper->thread);
}

-extern void sched_set_stop_task(int cpu, struct task_struct *stop);
-
static void cpu_stop_create(unsigned int cpu)
{
sched_set_stop_task(cpu, per_cpu(cpu_stopper.thread, cpu));
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