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-rw-r--r--src/vppinfra/clib.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/vppinfra/clib.h b/src/vppinfra/clib.h
index be21cad604b..6c82f869653 100644
--- a/src/vppinfra/clib.h
+++ b/src/vppinfra/clib.h
@@ -38,6 +38,7 @@
#ifndef included_clib_h
#define included_clib_h
+#include <stddef.h>
#include <vppinfra/config.h>
#ifdef __x86_64__
@@ -66,8 +67,8 @@
#define ARRAY_LEN(x) (sizeof (x)/sizeof (x[0]))
#define _STRUCT_FIELD(t,f) (((t *) 0)->f)
-#define STRUCT_OFFSET_OF(t,f) ((uword) & _STRUCT_FIELD (t, f))
-#define STRUCT_BIT_OFFSET_OF(t,f) (BITS(u8) * (uword) & _STRUCT_FIELD (t, f))
+#define STRUCT_OFFSET_OF(t,f) offsetof(t, f)
+#define STRUCT_BIT_OFFSET_OF(t,f) (BITS(u8) * STRUCT_OFFSET_OF (t, f))
#define STRUCT_SIZE_OF(t,f) (sizeof (_STRUCT_FIELD (t, f)))
#define STRUCT_BITS_OF(t,f) (BITS (_STRUCT_FIELD (t, f)))
#define STRUCT_ARRAY_LEN(t,f) ARRAY_LEN (_STRUCT_FIELD (t, f))