diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h
index 3e240710e7..c09fc172ef 100644
--- a/payloads/libpayload/include/libpayload.h
+++ b/payloads/libpayload/include/libpayload.h
@@ -48,6 +48,7 @@
 #include <die.h>
 #include <endian.h>
 #include <ipchksum.h>
+#include <kconfig.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdarg.h>
diff --git a/payloads/libpayload/include/stddef.h b/payloads/libpayload/include/stddef.h
index bb2971dd3a..fe455b8a23 100644
--- a/payloads/libpayload/include/stddef.h
+++ b/payloads/libpayload/include/stddef.h
@@ -16,7 +16,15 @@ typedef __SIZE_TYPE__ ssize_t;
 #define offsetof(TYPE, MEMBER)	((size_t) &((TYPE *) 0)->MEMBER)
 #define member_size(TYPE, MEMBER)	(sizeof(((TYPE *) 0)->MEMBER))
 
+#define check_member(structure, member, offset) _Static_assert( \
+	offsetof(struct structure, member) == offset, \
+	"`struct " #structure "` offset for `" #member "` is not " #offset)
+
 /* Standard units. */
 #define KiB (1<<10)
 #define MiB (1<<20)
 #define GiB (1<<30)
+
+#define KHz (1000)
+#define MHz (1000*KHz)
+#define GHz (1000*MHz)