[PATCH] fix build: add missing #ifdef CONFIG_STACKTRACE

[TÃrÃk Edwin]

Signed-off-by: TÃrÃk Edwin <edwintorok@xxxxxxxxx>
---
 kernel/trace/trace.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

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 @@ static void ftrace_trace_userstack(struct trace_array *tr,
 		   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 @@ static void ftrace_trace_userstack(struct trace_array *tr,
 
 	save_stack_trace_user(&trace);
 	ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
+#endif
 }
 
 void __trace_userstack(struct trace_array *tr,
-- 
1.5.6.5

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