diff --git a/endianness.h b/endianness.h
index 376edb24c4..e5c8d25089 100644
--- a/endianness.h
+++ b/endianness.h
@@ -19,6 +19,13 @@
 
 #include <stdint.h>
 
+#define SWAP32(x) ((uint32_t)(           \
+         (((uint32_t)(x) & 0x000000ff) << 24) | \
+         (((uint32_t)(x) & 0x0000ff00) <<  8) | \
+         (((uint32_t)(x) & 0x00ff0000) >>  8) | \
+         (((uint32_t)(x) & 0xff000000) >> 24)   \
+         ))
+
 static inline uint8_t is_little_endian(void)
 {
    union
@@ -61,4 +68,14 @@ static inline uint16_t swap_if_little16(uint16_t val)
    return val;
 }
 
+static inline void store32be(uint32_t *addr, uint32_t data)
+{
+   *addr = is_little_endian() ? SWAP32(data) : data;
+}
+
+static inline uint32_t load32be(const uint32_t *addr)
+{
+   return is_little_endian() ? SWAP32(*addr) : *addr;
+}
+
 #endif
diff --git a/hash.c b/hash.c
index 82d9845ffe..a3cba5b438 100644
--- a/hash.c
+++ b/hash.c
@@ -58,23 +58,7 @@
 #include <stdio.h>
 #include "hash.h"
 #include "miscellaneous.h"
-
-#define SWAP32(x) ((uint32_t)(           \
-         (((uint32_t)(x) & 0x000000ff) << 24) | \
-         (((uint32_t)(x) & 0x0000ff00) <<  8) | \
-         (((uint32_t)(x) & 0x00ff0000) >>  8) | \
-         (((uint32_t)(x) & 0xff000000) >> 24)   \
-         ))
-
-static inline void store32be(uint32_t *addr, uint32_t data)
-{
-   *addr = is_little_endian() ? SWAP32(data) : data;
-}
-
-static inline uint32_t load32be(const uint32_t *addr)
-{
-   return is_little_endian() ? SWAP32(*addr) : *addr;
-}
+#include "endianness.h"
 
 #define LSL32(x, n) ((uint32_t)(x) << (n))
 #define LSR32(x, n) ((uint32_t)(x) >> (n))