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-rw-r--r--include/linux/ftrace_event.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 46a27f2695a6..e61a7403f3d0 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -122,8 +122,9 @@ extern int filter_current_check_discard(struct ftrace_event_call *call,
struct ring_buffer_event *event);
extern int trace_define_field(struct ftrace_event_call *call, char *type,
- char *name, int offset, int size);
+ char *name, int offset, int size, int is_signed);
+#define is_signed_type(type) (((type)(-1)) < 0)
/*
* The double __builtin_constant_p is because gcc will give us an error
@@ -144,10 +145,10 @@ do { \
__trace_printk(ip, fmt, ##args); \
} while (0)
-#define __common_field(type, item) \
+#define __common_field(type, item, is_signed) \
ret = trace_define_field(event_call, #type, "common_" #item, \
offsetof(typeof(field.ent), item), \
- sizeof(field.ent.item)); \
+ sizeof(field.ent.item), is_signed); \
if (ret) \
return ret;