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-rw-r--r--include/linux/rcupdate.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index b758ce17b30..9ed2c9a4de4 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -80,6 +80,7 @@ extern void do_trace_rcu_torture_read(char *rcutorturename,
#define UINT_CMP_LT(a, b) (UINT_MAX / 2 < (a) - (b))
#define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b))
#define ULONG_CMP_LT(a, b) (ULONG_MAX / 2 < (a) - (b))
+#define ulong2long(a) (*(long *)(&(a)))
/* Exported common interfaces */