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/[email protected]
Signed-off-by: Valdis Kletnieks <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 4a9191617076fae367a77e75400208839a9c8ef8..0c11216171c92b1df54e7bb175a6326319640535 100644 (file)
--- 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>