diff --git a/crypto/cast6_generic.c b/crypto/cast6_generic.c
index c77ff6c8a2b2..75346380aa0b 100644
--- a/crypto/cast6_generic.c
+++ b/crypto/cast6_generic.c
@@ -10,7 +10,7 @@
  */
 
 
-#include <asm/byteorder.h>
+#include <asm/unaligned.h>
 #include <linux/init.h>
 #include <linux/crypto.h>
 #include <linux/module.h>
@@ -172,16 +172,14 @@ static inline void QBAR(u32 *block, const u8 *Kr, const u32 *Km)
 void __cast6_encrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
 {
 	const struct cast6_ctx *c = ctx;
-	const __be32 *src = (const __be32 *)inbuf;
-	__be32 *dst = (__be32 *)outbuf;
 	u32 block[4];
 	const u32 *Km;
 	const u8 *Kr;
 
-	block[0] = be32_to_cpu(src[0]);
-	block[1] = be32_to_cpu(src[1]);
-	block[2] = be32_to_cpu(src[2]);
-	block[3] = be32_to_cpu(src[3]);
+	block[0] = get_unaligned_be32(inbuf);
+	block[1] = get_unaligned_be32(inbuf + 4);
+	block[2] = get_unaligned_be32(inbuf + 8);
+	block[3] = get_unaligned_be32(inbuf + 12);
 
 	Km = c->Km[0]; Kr = c->Kr[0]; Q(block, Kr, Km);
 	Km = c->Km[1]; Kr = c->Kr[1]; Q(block, Kr, Km);
@@ -196,10 +194,10 @@ void __cast6_encrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
 	Km = c->Km[10]; Kr = c->Kr[10]; QBAR(block, Kr, Km);
 	Km = c->Km[11]; Kr = c->Kr[11]; QBAR(block, Kr, Km);
 
-	dst[0] = cpu_to_be32(block[0]);
-	dst[1] = cpu_to_be32(block[1]);
-	dst[2] = cpu_to_be32(block[2]);
-	dst[3] = cpu_to_be32(block[3]);
+	put_unaligned_be32(block[0], outbuf);
+	put_unaligned_be32(block[1], outbuf + 4);
+	put_unaligned_be32(block[2], outbuf + 8);
+	put_unaligned_be32(block[3], outbuf + 12);
 }
 EXPORT_SYMBOL_GPL(__cast6_encrypt);
 
@@ -211,16 +209,14 @@ static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
 void __cast6_decrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
 {
 	const struct cast6_ctx *c = ctx;
-	const __be32 *src = (const __be32 *)inbuf;
-	__be32 *dst = (__be32 *)outbuf;
 	u32 block[4];
 	const u32 *Km;
 	const u8 *Kr;
 
-	block[0] = be32_to_cpu(src[0]);
-	block[1] = be32_to_cpu(src[1]);
-	block[2] = be32_to_cpu(src[2]);
-	block[3] = be32_to_cpu(src[3]);
+	block[0] = get_unaligned_be32(inbuf);
+	block[1] = get_unaligned_be32(inbuf + 4);
+	block[2] = get_unaligned_be32(inbuf + 8);
+	block[3] = get_unaligned_be32(inbuf + 12);
 
 	Km = c->Km[11]; Kr = c->Kr[11]; Q(block, Kr, Km);
 	Km = c->Km[10]; Kr = c->Kr[10]; Q(block, Kr, Km);
@@ -235,10 +231,10 @@ void __cast6_decrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
 	Km = c->Km[1]; Kr = c->Kr[1]; QBAR(block, Kr, Km);
 	Km = c->Km[0]; Kr = c->Kr[0]; QBAR(block, Kr, Km);
 
-	dst[0] = cpu_to_be32(block[0]);
-	dst[1] = cpu_to_be32(block[1]);
-	dst[2] = cpu_to_be32(block[2]);
-	dst[3] = cpu_to_be32(block[3]);
+	put_unaligned_be32(block[0], outbuf);
+	put_unaligned_be32(block[1], outbuf + 4);
+	put_unaligned_be32(block[2], outbuf + 8);
+	put_unaligned_be32(block[3], outbuf + 12);
 }
 EXPORT_SYMBOL_GPL(__cast6_decrypt);
 
@@ -254,7 +250,6 @@ static struct crypto_alg alg = {
 	.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
 	.cra_blocksize = CAST6_BLOCK_SIZE,
 	.cra_ctxsize = sizeof(struct cast6_ctx),
-	.cra_alignmask = 3,
 	.cra_module = THIS_MODULE,
 	.cra_u = {
 		  .cipher = {