linux-kernel - [tip:sched/urgent] sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h

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Date:   Fri, 18 May 2018 00:36:50 -0700
From:   tip-bot for Mathieu Malaterre <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, srikar@...ux.vnet.ibm.com,
        torvalds@...ux-foundation.org, tglx@...utronix.de,
        malat@...ian.org, peterz@...radead.org, hpa@...or.com,
        linux-kernel@...r.kernel.org
Subject: [tip:sched/urgent] sched/debug: Move the print_rt_rq() and
 print_dl_rq() declarations to kernel/sched/sched.h

Commit-ID:  f6a3463063f42d9fb2c78f386437a822e0ad1792
Gitweb:     https://git.kernel.org/tip/f6a3463063f42d9fb2c78f386437a822e0ad1792
Author:     Mathieu Malaterre <malat@...ian.org>
AuthorDate: Wed, 16 May 2018 21:53:47 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 18 May 2018 09:05:14 +0200

sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h

In the following commit:

  6b55c9654fcc ("sched/debug: Move print_cfs_rq() declaration to kernel/sched/sched.h")

the print_cfs_rq() prototype was added to <kernel/sched/sched.h>,
right next to the prototypes for print_cfs_stats(), print_rt_stats()
and print_dl_stats().

Finish this previous commit and also move related prototypes for
print_rt_rq() and print_dl_rq().

Remove existing extern declarations now that they not needed anymore.

Silences the following GCC warning, triggered by W=1:

  kernel/sched/debug.c:573:6: warning: no previous prototype for ‘print_rt_rq’ [-Wmissing-prototypes]
  kernel/sched/debug.c:603:6: warning: no previous prototype for ‘print_dl_rq’ [-Wmissing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
Acked-by: Peter Zijlstra <peterz@...radead.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/20180516195348.30426-1-malat@debian.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/deadline.c | 2 --
 kernel/sched/rt.c       | 2 --
 kernel/sched/sched.h    | 5 +++--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index e7b3008b85bb..d6196bc6cbb5 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -2731,8 +2731,6 @@ bool dl_cpu_busy(unsigned int cpu)
 #endif
 
 #ifdef CONFIG_SCHED_DEBUG
-extern void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq);
-
 void print_dl_stats(struct seq_file *m, int cpu)
 {
 	print_dl_rq(m, cpu, &cpu_rq(cpu)->dl);
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 7aef6b4e885a..ef3c4e6f5345 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2701,8 +2701,6 @@ int sched_rr_handler(struct ctl_table *table, int write,
 }
 
 #ifdef CONFIG_SCHED_DEBUG
-extern void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq);
-
 void print_rt_stats(struct seq_file *m, int cpu)
 {
 	rt_rq_iter_t iter;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 15750c222ca2..1f0a4bc6a39d 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2025,8 +2025,9 @@ extern bool sched_debug_enabled;
 extern void print_cfs_stats(struct seq_file *m, int cpu);
 extern void print_rt_stats(struct seq_file *m, int cpu);
 extern void print_dl_stats(struct seq_file *m, int cpu);
-extern void
-print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
+extern void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq);
+extern void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq);
+extern void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq);
 #ifdef CONFIG_NUMA_BALANCING
 extern void
 show_numa_stats(struct task_struct *p, struct seq_file *m);