Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto update from Herbert Xu:
 "API:
   - Restrict crypto_cipher to internal API users only.

  Algorithms:
   - Add x86 aesni acceleration for cts.
   - Improve x86 aesni acceleration for xts.
   - Remove x86 acceleration of some uncommon algorithms.
   - Remove RIPE-MD, Tiger and Salsa20.
   - Remove tnepres.
   - Add ARM acceleration for BLAKE2s and BLAKE2b.

  Drivers:
   - Add Keem Bay OCS HCU driver.
   - Add Marvell OcteonTX2 CPT PF driver.
   - Remove PicoXcell driver.
   - Remove mediatek driver"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (154 commits)
  hwrng: timeriomem - Use device-managed registration API
  crypto: hisilicon/qm - fix printing format issue
  crypto: hisilicon/qm - do not reset hardware when CE happens
  crypto: hisilicon/qm - update irqflag
  crypto: hisilicon/qm - fix the value of 'QM_SQC_VFT_BASE_MASK_V2'
  crypto: hisilicon/qm - fix request missing error
  crypto: hisilicon/qm - removing driver after reset
  crypto: octeontx2 - fix -Wpointer-bool-conversion warning
  crypto: hisilicon/hpre - enable Elliptic curve cryptography
  crypto: hisilicon - PASID fixed on Kunpeng 930
  crypto: hisilicon/qm - fix use of 'dma_map_single'
  crypto: hisilicon/hpre - tiny fix
  crypto: hisilicon/hpre - adapt the number of clusters
  crypto: cpt - remove casting dma_alloc_coherent
  crypto: keembay-ocs-aes - Fix 'q' assignment during CCM B0 generation
  crypto: xor - Fix typo of optimization
  hwrng: optee - Use device-managed registration API
  crypto: arm64/crc-t10dif - move NEON yield to C code
  crypto: arm64/aes-ce-mac - simplify NEON yield
  crypto: arm64/aes-neonbs - remove NEON yield calls
  ...

1 files changed, 32 insertions, 126 deletions

diff --git a/crypto/blake2s_generic.c b/crypto/blake2s_generic.c
index 005783ff..72fe480f 100644
--- a/crypto/blake2s_generic.c
+++ b/crypto/blake2s_generic.c
@@ -1,149 +1,55 @@
 // SPDX-License-Identifier: GPL-2.0 OR MIT
 /*
+ * shash interface to the generic implementation of BLAKE2s
+ *
  * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <crypto/internal/blake2s.h>
-#include <crypto/internal/simd.h>
 #include <crypto/internal/hash.h>
 
 #include <linux/types.h>
-#include <linux/jump_label.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 
-static int crypto_blake2s_setkey(struct crypto_shash *tfm, const u8 *key,
-				 unsigned int keylen)
+static int crypto_blake2s_update_generic(struct shash_desc *desc,
+					 const u8 *in, unsigned int inlen)
 {
-	struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(tfm);
-
-	if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE)
-		return -EINVAL;
-
-	memcpy(tctx->key, key, keylen);
-	tctx->keylen = keylen;
-
-	return 0;
+	return crypto_blake2s_update(desc, in, inlen, blake2s_compress_generic);
 }
 
-static int crypto_blake2s_init(struct shash_desc *desc)
+static int crypto_blake2s_final_generic(struct shash_desc *desc, u8 *out)
 {
-	struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
-	struct blake2s_state *state = shash_desc_ctx(desc);
-	const int outlen = crypto_shash_digestsize(desc->tfm);
-
-	if (tctx->keylen)
-		blake2s_init_key(state, outlen, tctx->key, tctx->keylen);
-	else
-		blake2s_init(state, outlen);
-
-	return 0;
+	return crypto_blake2s_final(desc, out, blake2s_compress_generic);
 }
 
-static int crypto_blake2s_update(struct shash_desc *desc, const u8 *in,
-				 unsigned int inlen)
-{
-	struct blake2s_state *state = shash_desc_ctx(desc);
-	const size_t fill = BLAKE2S_BLOCK_SIZE - state->buflen;
-
-	if (unlikely(!inlen))
-		return 0;
-	if (inlen > fill) {
-		memcpy(state->buf + state->buflen, in, fill);
-		blake2s_compress_generic(state, state->buf, 1, BLAKE2S_BLOCK_SIZE);
-		state->buflen = 0;
-		in += fill;
-		inlen -= fill;
-	}
-	if (inlen > BLAKE2S_BLOCK_SIZE) {
-		const size_t nblocks = DIV_ROUND_UP(inlen, BLAKE2S_BLOCK_SIZE);
-		/* Hash one less (full) block than strictly possible */
-		blake2s_compress_generic(state, in, nblocks - 1, BLAKE2S_BLOCK_SIZE);
-		in += BLAKE2S_BLOCK_SIZE * (nblocks - 1);
-		inlen -= BLAKE2S_BLOCK_SIZE * (nblocks - 1);
+#define BLAKE2S_ALG(name, driver_name, digest_size)			\
+	{								\
+		.base.cra_name		= name,				\
+		.base.cra_driver_name	= driver_name,			\
+		.base.cra_priority	= 100,				\
+		.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,	\
+		.base.cra_blocksize	= BLAKE2S_BLOCK_SIZE,		\
+		.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx), \
+		.base.cra_module	= THIS_MODULE,			\
+		.digestsize		= digest_size,			\
+		.setkey			= crypto_blake2s_setkey,	\
+		.init			= crypto_blake2s_init,		\
+		.update			= crypto_blake2s_update_generic, \
+		.final			= crypto_blake2s_final_generic,	\
+		.descsize		= sizeof(struct blake2s_state),	\
 	}
-	memcpy(state->buf + state->buflen, in, inlen);
-	state->buflen += inlen;
-
-	return 0;
-}
-
-static int crypto_blake2s_final(struct shash_desc *desc, u8 *out)
-{
-	struct blake2s_state *state = shash_desc_ctx(desc);
-
-	blake2s_set_lastblock(state);
-	memset(state->buf + state->buflen, 0,
-	       BLAKE2S_BLOCK_SIZE - state->buflen); /* Padding */
-	blake2s_compress_generic(state, state->buf, 1, state->buflen);
-	cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
-	memcpy(out, state->h, state->outlen);
-	memzero_explicit(state, sizeof(*state));
-
-	return 0;
-}
-
-static struct shash_alg blake2s_algs[] = {{
-	.base.cra_name		= "blake2s-128",
-	.base.cra_driver_name	= "blake2s-128-generic",
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx),
-	.base.cra_priority	= 200,
-	.base.cra_blocksize     = BLAKE2S_BLOCK_SIZE,
-	.base.cra_module	= THIS_MODULE,
-
-	.digestsize		= BLAKE2S_128_HASH_SIZE,
-	.setkey			= crypto_blake2s_setkey,
-	.init			= crypto_blake2s_init,
-	.update			= crypto_blake2s_update,
-	.final			= crypto_blake2s_final,
-	.descsize		= sizeof(struct blake2s_state),
-}, {
-	.base.cra_name		= "blake2s-160",
-	.base.cra_driver_name	= "blake2s-160-generic",
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx),
-	.base.cra_priority	= 200,
-	.base.cra_blocksize     = BLAKE2S_BLOCK_SIZE,
-	.base.cra_module	= THIS_MODULE,
-
-	.digestsize		= BLAKE2S_160_HASH_SIZE,
-	.setkey			= crypto_blake2s_setkey,
-	.init			= crypto_blake2s_init,
-	.update			= crypto_blake2s_update,
-	.final			= crypto_blake2s_final,
-	.descsize		= sizeof(struct blake2s_state),
-}, {
-	.base.cra_name		= "blake2s-224",
-	.base.cra_driver_name	= "blake2s-224-generic",
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx),
-	.base.cra_priority	= 200,
-	.base.cra_blocksize     = BLAKE2S_BLOCK_SIZE,
-	.base.cra_module	= THIS_MODULE,
-
-	.digestsize		= BLAKE2S_224_HASH_SIZE,
-	.setkey			= crypto_blake2s_setkey,
-	.init			= crypto_blake2s_init,
-	.update			= crypto_blake2s_update,
-	.final			= crypto_blake2s_final,
-	.descsize		= sizeof(struct blake2s_state),
-}, {
-	.base.cra_name		= "blake2s-256",
-	.base.cra_driver_name	= "blake2s-256-generic",
-	.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
-	.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx),
-	.base.cra_priority	= 200,
-	.base.cra_blocksize     = BLAKE2S_BLOCK_SIZE,
-	.base.cra_module	= THIS_MODULE,
 
-	.digestsize		= BLAKE2S_256_HASH_SIZE,
-	.setkey			= crypto_blake2s_setkey,
-	.init			= crypto_blake2s_init,
-	.update			= crypto_blake2s_update,
-	.final			= crypto_blake2s_final,
-	.descsize		= sizeof(struct blake2s_state),
-}};
+static struct shash_alg blake2s_algs[] = {
+	BLAKE2S_ALG("blake2s-128", "blake2s-128-generic",
+		    BLAKE2S_128_HASH_SIZE),
+	BLAKE2S_ALG("blake2s-160", "blake2s-160-generic",
+		    BLAKE2S_160_HASH_SIZE),
+	BLAKE2S_ALG("blake2s-224", "blake2s-224-generic",
+		    BLAKE2S_224_HASH_SIZE),
+	BLAKE2S_ALG("blake2s-256", "blake2s-256-generic",
+		    BLAKE2S_256_HASH_SIZE),
+};
 
 static int __init blake2s_mod_init(void)
 {