qcacmn: Add qdf_print_thread_trace API

Add an abstraction to QDF for printing the stack trace of a given
thread.

Change-Id: Ibea6e6bed7f3ebe67538b8ea8b6b437b643d5541
CRs-Fixed: 2088806

qdf/inc/qdf_threads.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2017 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -34,7 +34,9 @@
 #define __QDF_THREADS_H
 
 #include <qdf_types.h>
-#include <qdf_util.h>
+#include "i_qdf_threads.h"
+
+typedef __qdf_thread_t qdf_thread_t;
 
 /* Function declarations and documenation */
 
@@ -71,4 +73,12 @@ qdf_thread_t *qdf_create_thread(int (*thread_handler)(void *data), void *data,
  */
 int qdf_wake_up_process(qdf_thread_t *thread);
 
+/**
+ * qdf_print_stack_trace_thread() - prints the stack trace of the given thread
+ * @thread: the thread for which the stack trace will be printed
+ *
+ * Return: None
+ */
+void qdf_print_thread_trace(qdf_thread_t *thread);
+
 #endif /* __QDF_THREADS_H */