Merge branch 'android-4.4' of https://android.googlesource.com/kernel/common

* android-4.4: (475 commits)
  android: base-cfg: Add CONFIG_IP_MULTICAST
  android: recommended.cfg: enable taskstats
  ANDROID: android: base-cfg: disable CONFIG_SYSVIPC
  android: configs: base: enable configfs gadget functions
  android: add CONFIG_DEBUG_RODATA to recommended config
  android: configs: remove CONFIG_BATTERY_ANDROID=y
  android: configs: base: enable IPV6
  android: configs: Enable SELinux and its dependencies.
  android: base-cfg: disable ALARM_DEV
  android: base-cfg: turn off /dev/mem and /dev/kmem
  android: base-cfg: enable ARMV8_DEPRECATED and subfeatures
  android: base-cfg: enforce the needed XFRM_MODE_TUNNEL (for VPN)
  android: base-cfg: disable LOGGER
  android: base-cfg: enable DM_VERITY (used for secureboot)
  android: configs: add systrace support to recommended configs
  android: configs: update 3.10 options
  android: configs: Add CONFIG_NETFILTER_XT_TARGET_IDLETIMER
  android: configs: add IPV6 ROUTE INFO
  android: configs: add TIMER_STATS back, helps with sysrq t.
  android: configs: Add HIDRAW to recommended set
  ...

1 files changed, 13 insertions, 30 deletions

diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index a663cbb84107..4641bdb40f8f 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -64,6 +64,9 @@ struct fgraph_data {
 
 #define TRACE_GRAPH_INDENT	2
 
+/* Flag options */
+#define TRACE_GRAPH_PRINT_FLAT		0x80
+
 static unsigned int max_depth;
 
 static struct tracer_opt trace_opts[] = {
@@ -87,6 +90,8 @@ static struct tracer_opt trace_opts[] = {
 	{ TRACER_OPT(sleep-time, TRACE_GRAPH_SLEEP_TIME) },
 	/* Include time within nested functions */
 	{ TRACER_OPT(graph-time, TRACE_GRAPH_GRAPH_TIME) },
+	/* Use standard trace formatting rather than hierarchical */
+	{ TRACER_OPT(funcgraph-flat, TRACE_GRAPH_PRINT_FLAT) },
 	{ } /* Empty entry */
 };
 
@@ -1165,6 +1170,9 @@ print_graph_function_flags(struct trace_iterator *iter, u32 flags)
 	int cpu = iter->cpu;
 	int ret;
 
+	if (flags & TRACE_GRAPH_PRINT_FLAT)
+		return TRACE_TYPE_UNHANDLED;
+
 	if (data && per_cpu_ptr(data->cpu_data, cpu)->ignore) {
 		per_cpu_ptr(data->cpu_data, cpu)->ignore = 0;
 		return TRACE_TYPE_HANDLED;
@@ -1222,13 +1230,6 @@ print_graph_function(struct trace_iterator *iter)
 	return print_graph_function_flags(iter, tracer_flags.val);
 }
 
-static enum print_line_t
-print_graph_function_event(struct trace_iterator *iter, int flags,
-			   struct trace_event *event)
-{
-	return print_graph_function(iter);
-}
-
 static void print_lat_header(struct seq_file *s, u32 flags)
 {
 	static const char spaces[] = "                "	/* 16 spaces */
@@ -1297,6 +1298,11 @@ void print_graph_headers_flags(struct seq_file *s, u32 flags)
 	struct trace_iterator *iter = s->private;
 	struct trace_array *tr = iter->tr;
 
+	if (flags & TRACE_GRAPH_PRINT_FLAT) {
+		trace_default_header(s);
+		return;
+	}
+
 	if (!(tr->trace_flags & TRACE_ITER_CONTEXT_INFO))
 		return;
 
@@ -1378,19 +1384,6 @@ func_graph_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
 	return 0;
 }
 
-static struct trace_event_functions graph_functions = {
-	.trace		= print_graph_function_event,
-};
-
-static struct trace_event graph_trace_entry_event = {
-	.type		= TRACE_GRAPH_ENT,
-	.funcs		= &graph_functions,
-};
-
-static struct trace_event graph_trace_ret_event = {
-	.type		= TRACE_GRAPH_RET,
-	.funcs		= &graph_functions
-};
 
 static struct tracer graph_trace __tracer_data = {
 	.name		= "function_graph",
@@ -1467,16 +1460,6 @@ static __init int init_graph_trace(void)
 {
 	max_bytes_for_cpu = snprintf(NULL, 0, "%d", nr_cpu_ids - 1);
 
-	if (!register_trace_event(&graph_trace_entry_event)) {
-		pr_warning("Warning: could not register graph trace events\n");
-		return 1;
-	}
-
-	if (!register_trace_event(&graph_trace_ret_event)) {
-		pr_warning("Warning: could not register graph trace events\n");
-		return 1;
-	}
-
 	return register_tracer(&graph_trace);
 }