--- zzzz-none-000/linux-3.10.107/arch/arm/crypto/sha1_glue.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/crypto/sha1_glue.c	2021-02-04 17:41:59.000000000 +0000
@@ -22,131 +22,47 @@
 #include <linux/cryptohash.h>
 #include <linux/types.h>
 #include <crypto/sha.h>
+#include <crypto/sha1_base.h>
 #include <asm/byteorder.h>
 
-struct SHA1_CTX {
-	uint32_t h0,h1,h2,h3,h4;
-	u64 count;
-	u8 data[SHA1_BLOCK_SIZE];
-};
+#include "sha1.h"
 
-asmlinkage void sha1_block_data_order(struct SHA1_CTX *digest,
+asmlinkage void sha1_block_data_order(u32 *digest,
 		const unsigned char *data, unsigned int rounds);
 
-
-static int sha1_init(struct shash_desc *desc)
-{
-	struct SHA1_CTX *sctx = shash_desc_ctx(desc);
-	memset(sctx, 0, sizeof(*sctx));
-	sctx->h0 = SHA1_H0;
-	sctx->h1 = SHA1_H1;
-	sctx->h2 = SHA1_H2;
-	sctx->h3 = SHA1_H3;
-	sctx->h4 = SHA1_H4;
-	return 0;
-}
-
-
-static int __sha1_update(struct SHA1_CTX *sctx, const u8 *data,
-			       unsigned int len, unsigned int partial)
+int sha1_update_arm(struct shash_desc *desc, const u8 *data,
+		    unsigned int len)
 {
-	unsigned int done = 0;
-
-	sctx->count += len;
-
-	if (partial) {
-		done = SHA1_BLOCK_SIZE - partial;
-		memcpy(sctx->data + partial, data, done);
-		sha1_block_data_order(sctx, sctx->data, 1);
-	}
-
-	if (len - done >= SHA1_BLOCK_SIZE) {
-		const unsigned int rounds = (len - done) / SHA1_BLOCK_SIZE;
-		sha1_block_data_order(sctx, data + done, rounds);
-		done += rounds * SHA1_BLOCK_SIZE;
-	}
-
-	memcpy(sctx->data, data + done, len - done);
-	return 0;
-}
+	/* make sure casting to sha1_block_fn() is safe */
+	BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
 
-
-static int sha1_update(struct shash_desc *desc, const u8 *data,
-			     unsigned int len)
-{
-	struct SHA1_CTX *sctx = shash_desc_ctx(desc);
-	unsigned int partial = sctx->count % SHA1_BLOCK_SIZE;
-	int res;
-
-	/* Handle the fast case right here */
-	if (partial + len < SHA1_BLOCK_SIZE) {
-		sctx->count += len;
-		memcpy(sctx->data + partial, data, len);
-		return 0;
-	}
-	res = __sha1_update(sctx, data, len, partial);
-	return res;
+	return sha1_base_do_update(desc, data, len,
+				   (sha1_block_fn *)sha1_block_data_order);
 }
+EXPORT_SYMBOL_GPL(sha1_update_arm);
 
-
-/* Add padding and return the message digest. */
 static int sha1_final(struct shash_desc *desc, u8 *out)
 {
-	struct SHA1_CTX *sctx = shash_desc_ctx(desc);
-	unsigned int i, index, padlen;
-	__be32 *dst = (__be32 *)out;
-	__be64 bits;
-	static const u8 padding[SHA1_BLOCK_SIZE] = { 0x80, };
-
-	bits = cpu_to_be64(sctx->count << 3);
-
-	/* Pad out to 56 mod 64 and append length */
-	index = sctx->count % SHA1_BLOCK_SIZE;
-	padlen = (index < 56) ? (56 - index) : ((SHA1_BLOCK_SIZE+56) - index);
-	/* We need to fill a whole block for __sha1_update() */
-	if (padlen <= 56) {
-		sctx->count += padlen;
-		memcpy(sctx->data + index, padding, padlen);
-	} else {
-		__sha1_update(sctx, padding, padlen, index);
-	}
-	__sha1_update(sctx, (const u8 *)&bits, sizeof(bits), 56);
-
-	/* Store state in digest */
-	for (i = 0; i < 5; i++)
-		dst[i] = cpu_to_be32(((u32 *)sctx)[i]);
-
-	/* Wipe context */
-	memset(sctx, 0, sizeof(*sctx));
-	return 0;
+	sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
+	return sha1_base_finish(desc, out);
 }
 
-
-static int sha1_export(struct shash_desc *desc, void *out)
+int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
+		   unsigned int len, u8 *out)
 {
-	struct SHA1_CTX *sctx = shash_desc_ctx(desc);
-	memcpy(out, sctx, sizeof(*sctx));
-	return 0;
+	sha1_base_do_update(desc, data, len,
+			    (sha1_block_fn *)sha1_block_data_order);
+	return sha1_final(desc, out);
 }
-
-
-static int sha1_import(struct shash_desc *desc, const void *in)
-{
-	struct SHA1_CTX *sctx = shash_desc_ctx(desc);
-	memcpy(sctx, in, sizeof(*sctx));
-	return 0;
-}
-
+EXPORT_SYMBOL_GPL(sha1_finup_arm);
 
 static struct shash_alg alg = {
 	.digestsize	=	SHA1_DIGEST_SIZE,
-	.init		=	sha1_init,
-	.update		=	sha1_update,
+	.init		=	sha1_base_init,
+	.update		=	sha1_update_arm,
 	.final		=	sha1_final,
-	.export		=	sha1_export,
-	.import		=	sha1_import,
-	.descsize	=	sizeof(struct SHA1_CTX),
-	.statesize	=	sizeof(struct SHA1_CTX),
+	.finup		=	sha1_finup_arm,
+	.descsize	=	sizeof(struct sha1_state),
 	.base		=	{
 		.cra_name	=	"sha1",
 		.cra_driver_name=	"sha1-asm",