1 files changed, 16 insertions, 89 deletions

diff --git a/arch/sparc/crypto/sha512_glue.c b/arch/sparc/crypto/sha512_glue.c
index d66efa4ec59a..47b9277b6877 100644
--- a/arch/sparc/crypto/sha512_glue.c
+++ b/arch/sparc/crypto/sha512_glue.c
@@ -10,115 +10,42 @@
 
 #define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
 
+#include <asm/elf.h>
+#include <asm/opcodes.h>
+#include <asm/pstate.h>
 #include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/types.h>
 #include <crypto/sha2.h>
 #include <crypto/sha512_base.h>
-
-#include <asm/pstate.h>
-#include <asm/elf.h>
-
-#include "opcodes.h"
+#include <linux/kernel.h>
+#include <linux/module.h>
 
 asmlinkage void sha512_sparc64_transform(u64 *digest, const char *data,
 					 unsigned int rounds);
 
-static void __sha512_sparc64_update(struct sha512_state *sctx, const u8 *data,
-				    unsigned int len, unsigned int partial)
+static void sha512_block(struct sha512_state *sctx, const u8 *src, int blocks)
 {
-	unsigned int done = 0;
-
-	if ((sctx->count[0] += len) < len)
-		sctx->count[1]++;
-	if (partial) {
-		done = SHA512_BLOCK_SIZE - partial;
-		memcpy(sctx->buf + partial, data, done);
-		sha512_sparc64_transform(sctx->state, sctx->buf, 1);
-	}
-	if (len - done >= SHA512_BLOCK_SIZE) {
-		const unsigned int rounds = (len - done) / SHA512_BLOCK_SIZE;
-
-		sha512_sparc64_transform(sctx->state, data + done, rounds);
-		done += rounds * SHA512_BLOCK_SIZE;
-	}
-
-	memcpy(sctx->buf, data + done, len - done);
+	sha512_sparc64_transform(sctx->state, src, blocks);
 }
 
 static int sha512_sparc64_update(struct shash_desc *desc, const u8 *data,
 				 unsigned int len)
 {
-	struct sha512_state *sctx = shash_desc_ctx(desc);
-	unsigned int partial = sctx->count[0] % SHA512_BLOCK_SIZE;
-
-	/* Handle the fast case right here */
-	if (partial + len < SHA512_BLOCK_SIZE) {
-		if ((sctx->count[0] += len) < len)
-			sctx->count[1]++;
-		memcpy(sctx->buf + partial, data, len);
-	} else
-		__sha512_sparc64_update(sctx, data, len, partial);
-
-	return 0;
+	return sha512_base_do_update_blocks(desc, data, len, sha512_block);
 }
 
-static int sha512_sparc64_final(struct shash_desc *desc, u8 *out)
+static int sha512_sparc64_finup(struct shash_desc *desc, const u8 *src,
+				unsigned int len, u8 *out)
 {
-	struct sha512_state *sctx = shash_desc_ctx(desc);
-	unsigned int i, index, padlen;
-	__be64 *dst = (__be64 *)out;
-	__be64 bits[2];
-	static const u8 padding[SHA512_BLOCK_SIZE] = { 0x80, };
-
-	/* Save number of bits */
-	bits[1] = cpu_to_be64(sctx->count[0] << 3);
-	bits[0] = cpu_to_be64(sctx->count[1] << 3 | sctx->count[0] >> 61);
-
-	/* Pad out to 112 mod 128 and append length */
-	index = sctx->count[0] % SHA512_BLOCK_SIZE;
-	padlen = (index < 112) ? (112 - index) : ((SHA512_BLOCK_SIZE+112) - index);
-
-	/* We need to fill a whole block for __sha512_sparc64_update() */
-	if (padlen <= 112) {
-		if ((sctx->count[0] += padlen) < padlen)
-			sctx->count[1]++;
-		memcpy(sctx->buf + index, padding, padlen);
-	} else {
-		__sha512_sparc64_update(sctx, padding, padlen, index);
-	}
-	__sha512_sparc64_update(sctx, (const u8 *)&bits, sizeof(bits), 112);
-
-	/* Store state in digest */
-	for (i = 0; i < 8; i++)
-		dst[i] = cpu_to_be64(sctx->state[i]);
-
-	/* Wipe context */
-	memset(sctx, 0, sizeof(*sctx));
-
-	return 0;
-}
-
-static int sha384_sparc64_final(struct shash_desc *desc, u8 *hash)
-{
-	u8 D[64];
-
-	sha512_sparc64_final(desc, D);
-
-	memcpy(hash, D, 48);
-	memzero_explicit(D, 64);
-
-	return 0;
+	sha512_base_do_finup(desc, src, len, sha512_block);
+	return sha512_base_finish(desc, out);
 }
 
 static struct shash_alg sha512 = {
 	.digestsize	=	SHA512_DIGEST_SIZE,
 	.init		=	sha512_base_init,
 	.update		=	sha512_sparc64_update,
-	.final		=	sha512_sparc64_final,
-	.descsize	=	sizeof(struct sha512_state),
+	.finup		=	sha512_sparc64_finup,
+	.descsize	=	SHA512_STATE_SIZE,
 	.base		=	{
 		.cra_name	=	"sha512",
 		.cra_driver_name=	"sha512-sparc64",
@@ -132,8 +59,8 @@ static struct shash_alg sha384 = {
 	.digestsize	=	SHA384_DIGEST_SIZE,
 	.init		=	sha384_base_init,
 	.update		=	sha512_sparc64_update,
-	.final		=	sha384_sparc64_final,
-	.descsize	=	sizeof(struct sha512_state),
+	.finup		=	sha512_sparc64_finup,
+	.descsize	=	SHA512_STATE_SIZE,
 	.base		=	{
 		.cra_name	=	"sha384",
 		.cra_driver_name=	"sha384-sparc64",