tracing, alpha: fix build: add missing #ifdef CONFIG_STACKTRACE
There are architectures that still have no stacktrace support.
Signed-off-by: Török Edwin <edwintorok@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5811e0a..91887a2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -983,6 +983,7 @@
struct trace_array_cpu *data,
unsigned long flags, int pc)
{
+#ifdef CONFIG_STACKTRACE
struct ring_buffer_event *event;
struct userstack_entry *entry;
struct stack_trace trace;
@@ -1008,6 +1009,7 @@
save_stack_trace_user(&trace);
ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+#endif
}
void __trace_userstack(struct trace_array *tr,