1 files changed, 0 insertions, 98 deletions
diff --git a/kernel/trace/trace_functions_return.c b/kernel/trace/trace_functions_return.c
deleted file mode 100644
index e00d64509c9..00000000000
--- a/kernel/trace/trace_functions_return.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- *
- * Function return tracer.
- * Copyright (c) 2008 Frederic Weisbecker <fweisbec@gmail.com>
- * Mostly borrowed from function tracer which
- * is Copyright (c) Steven Rostedt <srostedt@redhat.com>
- *
- */
-#include <linux/debugfs.h>
-#include <linux/uaccess.h>
-#include <linux/ftrace.h>
-#include <linux/fs.h>
-
-#include "trace.h"
-
-
-#define TRACE_RETURN_PRINT_OVERRUN	0x1
-static struct tracer_opt trace_opts[] = {
-	/* Display overruns or not */
-	{ TRACER_OPT(overrun, TRACE_RETURN_PRINT_OVERRUN) },
-	{ } /* Empty entry */
-};
-
-static struct tracer_flags tracer_flags = {
-	.val = 0, /* Don't display overruns by default */
-	.opts = trace_opts
-};
-
-
-static int return_trace_init(struct trace_array *tr)
-{
-	int cpu;
-	for_each_online_cpu(cpu)
-		tracing_reset(tr, cpu);
-
-	return register_ftrace_return(&trace_function_return);
-}
-
-static void return_trace_reset(struct trace_array *tr)
-{
-		unregister_ftrace_return();
-}
-
-
-enum print_line_t
-print_return_function(struct trace_iterator *iter)
-{
-	struct trace_seq *s = &iter->seq;
-	struct trace_entry *entry = iter->ent;
-	struct ftrace_ret_entry *field;
-	int ret;
-
-	if (entry->type == TRACE_FN_RET) {
-		trace_assign_type(field, entry);
-		ret = trace_seq_printf(s, "%pF -> ", (void *)field->parent_ip);
-		if (!ret)
-			return TRACE_TYPE_PARTIAL_LINE;
-
-		ret = seq_print_ip_sym(s, field->ip,
-					trace_flags & TRACE_ITER_SYM_MASK);
-		if (!ret)
-			return TRACE_TYPE_PARTIAL_LINE;
-
-		ret = trace_seq_printf(s, " (%llu ns)",
-					field->rettime - field->calltime);
-		if (!ret)
-			return TRACE_TYPE_PARTIAL_LINE;
-
-		if (tracer_flags.val & TRACE_RETURN_PRINT_OVERRUN) {
-			ret = trace_seq_printf(s, " (Overruns: %lu)",
-						field->overrun);
-			if (!ret)
-				return TRACE_TYPE_PARTIAL_LINE;
-		}
-
-		ret = trace_seq_printf(s, "\n");
-		if (!ret)
-			return TRACE_TYPE_PARTIAL_LINE;
-
-		return TRACE_TYPE_HANDLED;
-	}
-	return TRACE_TYPE_UNHANDLED;
-}
-
-static struct tracer return_trace __read_mostly = {
-	.name	     = "return",
-	.init	     = return_trace_init,
-	.reset	     = return_trace_reset,
-	.print_line = print_return_function,
-	.flags		= &tracer_flags,
-};
-
-static __init int init_return_trace(void)
-{
-	return register_tracer(&return_trace);
-}
-
-device_initcall(init_return_trace);