From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 18 Oct 2015 16:23:46 +0000 (+0100)
Subject: crypto: marvell/cesa - fix the bit length endianness
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=51954a968bbedcabf2b42fec2ec51386f0dee0c4;p=linux-beck.git

crypto: marvell/cesa - fix the bit length endianness

The endianness of the bit length used in the final stage depends on the
endianness of the algorithm - md5 hashes need it to be in little endian
format, whereas SHA hashes need it in big endian format.  Use the
previously added algorithm endianness flag to control this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index f86594fb12ba..060bdddc64b5 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -179,7 +179,6 @@ static int mv_cesa_ahash_pad_len(struct mv_cesa_ahash_req *creq)
 
 static int mv_cesa_ahash_pad_req(struct mv_cesa_ahash_req *creq, u8 *buf)
 {
-	__be64 bits = cpu_to_be64(creq->len << 3);
 	unsigned int index, padlen;
 
 	buf[0] = 0x80;
@@ -187,7 +186,14 @@ static int mv_cesa_ahash_pad_req(struct mv_cesa_ahash_req *creq, u8 *buf)
 	index = creq->len & CESA_HASH_BLOCK_SIZE_MSK;
 	padlen = mv_cesa_ahash_pad_len(creq);
 	memset(buf + 1, 0, padlen - 1);
-	memcpy(buf + padlen, &bits, sizeof(bits));
+
+	if (creq->algo_le) {
+		__le64 bits = cpu_to_le64(creq->len << 3);
+		memcpy(buf + padlen, &bits, sizeof(bits));
+	} else {
+		__be64 bits = cpu_to_be64(creq->len << 3);
+		memcpy(buf + padlen, &bits, sizeof(bits));
+	}
 
 	return padlen + 8;
 }