From a98eb6f19952f18a7e5ac55d6bd7bbbb2bdc8b88 Mon Sep 17 00:00:00 2001
From: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Date: Thu, 7 Mar 2019 16:26:46 -0800
Subject: kernel/hung_task.c - fix sparse warnings

sparse complains:

    CHECK   kernel/hung_task.c
  kernel/hung_task.c:28:19: warning: symbol 'sysctl_hung_task_check_count' was not declared. Should it be static?
  kernel/hung_task.c:42:29: warning: symbol 'sysctl_hung_task_timeout_secs' was not declared. Should it be static?
  kernel/hung_task.c:47:29: warning: symbol 'sysctl_hung_task_check_interval_secs' was not declared. Should it be static?
  kernel/hung_task.c:49:19: warning: symbol 'sysctl_hung_task_warnings' was not declared. Should it be static?
  kernel/hung_task.c:61:28: warning: symbol 'sysctl_hung_task_panic' was not declared. Should it be static?
  kernel/hung_task.c:219:5: warning: symbol 'proc_dohung_task_timeout_secs' was not declared. Should it be static?

Add the appropriate header file to provide declarations.

Link: http://lkml.kernel.org/r/467.1548649525@turing-police.cc.vt.edu
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/hung_task.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 4a9191617076..0c11216171c9 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -19,6 +19,7 @@
 #include <linux/utsname.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/sysctl.h>
 
 #include <trace/events/sched.h>
 
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