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-rw-r--r--include/trace/ftrace.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 1cc2265caa52..21250056b7da 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -363,7 +363,7 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
#define __dynamic_array(type, item, len) \
__data_offsets->item = __data_size + \
offsetof(typeof(*entry), __data); \
- __data_offsets->item |= (len * sizeof(type)) << 16; \
+ __data_offsets->item |= ((len) * sizeof(type)) << 16; \
__data_size += (len) * sizeof(type);
#undef __string