[U-Boot] [PATCH 2/2] GCC47: Fix warning in md5.c

[Marek Vasut <marex@denx.de>]

md5.c: In function ?MD5Final?:
md5.c:156:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
md5.c:157:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
---
 include/u-boot/md5.h |    5 ++++-
 lib/md5.c            |    4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/u-boot/md5.h b/include/u-boot/md5.h
index 08924cc..e09c16a 100644
--- a/include/u-boot/md5.h
+++ b/include/u-boot/md5.h
@@ -11,7 +11,10 @@
 struct MD5Context {
 	__u32 buf[4];
 	__u32 bits[2];
-	unsigned char in[64];
+	union {
+		unsigned char in[64];
+		__u32 in32[16];
+	};
 };
 
 /*
diff --git a/lib/md5.c b/lib/md5.c
index 81a09e3..2ae4a06 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -153,8 +153,8 @@ MD5Final(unsigned char digest[16], struct MD5Context *ctx)
 	byteReverse(ctx->in, 14);
 
 	/* Append length in bits and transform */
-	((__u32 *) ctx->in)[14] = ctx->bits[0];
-	((__u32 *) ctx->in)[15] = ctx->bits[1];
+	ctx->in32[14] = ctx->bits[0];
+	ctx->in32[15] = ctx->bits[1];
 
 	MD5Transform(ctx->buf, (__u32 *) ctx->in);
 	byteReverse((unsigned char *) ctx->buf, 4);
-- 
1.7.10