crypto: use byteswap

* lib/md4.c, lib/md5.c, lib/sha1.c, lib/sha256.c, lib/sha512.c:
* lib/sm3.c: Include <byteswap.h>.
(SWAP): Use its macros rather than reinventing the wheel.
* modules/crypto/md4, modules/crypto/md5-buffer:
* modules/crypto/sha1-buffer, modules/crypto/sha256-buffer:
* modules/crypto/sha512-buffer, modules/crypto/sm3:
(Depends-on): Add byteswap.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/md4.c b/lib/md4.c
index b24ad1ca50..6474e6387f 100644
--- a/lib/md4.c
+++ b/lib/md4.c
@@ -33,9 +33,9 @@
 # include "unlocked-io.h"
 #endif
 
+#include <byteswap.h>
 #ifdef WORDS_BIGENDIAN
-# define SWAP(n)                                                        \
-  (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
+# define SWAP(n) bswap_32 (n)
 #else
 # define SWAP(n) (n)
 #endif