3 files changed, 14 insertions, 25 deletions

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index b8f73b333a3c..2f7b8e31e3a4 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -27,6 +27,12 @@
 
 DEFINE_MUTEX(event_mutex);
 
+DEFINE_MUTEX(event_storage_mutex);
+EXPORT_SYMBOL_GPL(event_storage_mutex);
+
+char event_storage[EVENT_STORAGE_SIZE];
+EXPORT_SYMBOL_GPL(event_storage);
+
 LIST_HEAD(ftrace_events);
 static LIST_HEAD(ftrace_common_fields);
 
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 39c746c5ae73..7c3e3e72e2b6 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -96,10 +96,14 @@ static void __always_unused ____ftrace_check_##name(void)		\
 #define __array(type, item, len)                                        \
         do {                                                            \
                 BUILD_BUG_ON(len > MAX_FILTER_STR_VAL);                 \
-                ret = ftrace_event_define_field(event_call, #type, len, \
-                                #item, offsetof(typeof(field), item),   \
-                                sizeof(field.item),                     \
-                                is_signed_type(type), filter_type);     \
+                mutex_lock(&event_storage_mutex);                       \
+                snprintf(event_storage, sizeof(event_storage),          \
+                         "%s[%d]", #type, len);                         \
+                ret = trace_define_field(event_call, event_storage, #item, \
+                                 offsetof(typeof(field), item),         \
+                                 sizeof(field.item),                    \
+                                 is_signed_type(type), filter_type);    \
+                mutex_unlock(&event_storage_mutex);                     \
                 if (ret)                                                \
                         return ret;                                     \
         } while (0);
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index ee8d74840b88..ca0e79e2abaa 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -20,10 +20,6 @@ static struct hlist_head event_hash[EVENT_HASHSIZE] __read_mostly;
 
 static int next_event_type = __TRACE_LAST_TYPE + 1;
 
-#define EVENT_STORAGE_SIZE 128
-static DEFINE_MUTEX(event_storage_mutex);
-static char event_storage[EVENT_STORAGE_SIZE];
-
 int trace_print_seq(struct seq_file *m, struct trace_seq *s)
 {
         int len = s->len >= PAGE_SIZE ? PAGE_SIZE - 1 : s->len;
@@ -474,23 +470,6 @@ int ftrace_output_call(struct trace_iterator *iter, char *name, char *fmt, ...)
 }
 EXPORT_SYMBOL_GPL(ftrace_output_call);
 
-int ftrace_event_define_field(struct ftrace_event_call *call,
-                              char *type, int len, char *item, int offset,
-                              int field_size, int sign, int filter)
-{
-        int ret;
-
-        mutex_lock(&event_storage_mutex);
-        snprintf(event_storage, sizeof(event_storage),
-                 "%s[%d]", type, len);
-        ret = trace_define_field(call, event_storage, item, offset,
-                                 field_size, sign, filter);
-        mutex_unlock(&event_storage_mutex);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(ftrace_event_define_field);
-
 #ifdef CONFIG_KRETPROBES
 static inline const char *kretprobed(const char *name)
 {