diff options
Diffstat (limited to 'arch/arm64')
-rw-r--r-- | arch/arm64/crypto/aes-ce-ccm-glue.c | 7 | ||||
-rw-r--r-- | arch/arm64/crypto/aes-ce-glue.c | 5 | ||||
-rw-r--r-- | arch/arm64/crypto/aes-glue.c | 6 | ||||
-rw-r--r-- | arch/arm64/crypto/aes-neonbs-glue.c | 4 | ||||
-rw-r--r-- | arch/arm64/crypto/chacha-neon-glue.c | 5 | ||||
-rw-r--r-- | arch/arm64/crypto/crct10dif-ce-glue.c | 5 | ||||
-rw-r--r-- | arch/arm64/crypto/ghash-ce-glue.c | 17 | ||||
-rw-r--r-- | arch/arm64/crypto/nhpoly1305-neon-glue.c | 3 | ||||
-rw-r--r-- | arch/arm64/crypto/sha1-ce-glue.c | 7 | ||||
-rw-r--r-- | arch/arm64/crypto/sha2-ce-glue.c | 7 | ||||
-rw-r--r-- | arch/arm64/crypto/sha256-glue.c | 5 | ||||
-rw-r--r-- | arch/arm64/crypto/sha3-ce-glue.c | 5 | ||||
-rw-r--r-- | arch/arm64/crypto/sha512-ce-glue.c | 7 | ||||
-rw-r--r-- | arch/arm64/crypto/sm3-ce-glue.c | 7 | ||||
-rw-r--r-- | arch/arm64/crypto/sm4-ce-glue.c | 5 |
15 files changed, 56 insertions, 39 deletions
diff --git a/arch/arm64/crypto/aes-ce-ccm-glue.c b/arch/arm64/crypto/aes-ce-ccm-glue.c index 036ea77f83bc..cb89c80800b5 100644 --- a/arch/arm64/crypto/aes-ce-ccm-glue.c +++ b/arch/arm64/crypto/aes-ce-ccm-glue.c @@ -14,6 +14,7 @@ #include <crypto/aes.h> #include <crypto/scatterwalk.h> #include <crypto/internal/aead.h> +#include <crypto/internal/simd.h> #include <crypto/internal/skcipher.h> #include <linux/module.h> @@ -109,7 +110,7 @@ static int ccm_init_mac(struct aead_request *req, u8 maciv[], u32 msglen) static void ccm_update_mac(struct crypto_aes_ctx *key, u8 mac[], u8 const in[], u32 abytes, u32 *macp) { - if (may_use_simd()) { + if (crypto_simd_usable()) { kernel_neon_begin(); ce_aes_ccm_auth_data(mac, in, abytes, macp, key->key_enc, num_rounds(key)); @@ -255,7 +256,7 @@ static int ccm_encrypt(struct aead_request *req) err = skcipher_walk_aead_encrypt(&walk, req, false); - if (may_use_simd()) { + if (crypto_simd_usable()) { while (walk.nbytes) { u32 tail = walk.nbytes % AES_BLOCK_SIZE; @@ -313,7 +314,7 @@ static int ccm_decrypt(struct aead_request *req) err = skcipher_walk_aead_decrypt(&walk, req, false); - if (may_use_simd()) { + if (crypto_simd_usable()) { while (walk.nbytes) { u32 tail = walk.nbytes % AES_BLOCK_SIZE; diff --git a/arch/arm64/crypto/aes-ce-glue.c b/arch/arm64/crypto/aes-ce-glue.c index e6b3227bbf57..3213843fcb46 100644 --- a/arch/arm64/crypto/aes-ce-glue.c +++ b/arch/arm64/crypto/aes-ce-glue.c @@ -12,6 +12,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/aes.h> +#include <crypto/internal/simd.h> #include <linux/cpufeature.h> #include <linux/crypto.h> #include <linux/module.h> @@ -52,7 +53,7 @@ static void aes_cipher_encrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[]) { struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { __aes_arm64_encrypt(ctx->key_enc, dst, src, num_rounds(ctx)); return; } @@ -66,7 +67,7 @@ static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[]) { struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { __aes_arm64_decrypt(ctx->key_dec, dst, src, num_rounds(ctx)); return; } diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c index 1e676625ef33..f0ceb545bd1e 100644 --- a/arch/arm64/crypto/aes-glue.c +++ b/arch/arm64/crypto/aes-glue.c @@ -405,7 +405,7 @@ static int ctr_encrypt_sync(struct skcipher_request *req) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm); - if (!may_use_simd()) + if (!crypto_simd_usable()) return aes_ctr_encrypt_fallback(ctx, req); return ctr_encrypt(req); @@ -642,7 +642,7 @@ static void mac_do_update(struct crypto_aes_ctx *ctx, u8 const in[], int blocks, { int rounds = 6 + ctx->key_length / 4; - if (may_use_simd()) { + if (crypto_simd_usable()) { kernel_neon_begin(); aes_mac_update(in, ctx->key_enc, rounds, blocks, dg, enc_before, enc_after); @@ -707,7 +707,7 @@ static int cbcmac_final(struct shash_desc *desc, u8 *out) struct mac_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm); struct mac_desc_ctx *ctx = shash_desc_ctx(desc); - mac_do_update(&tctx->key, NULL, 0, ctx->dg, 1, 0); + mac_do_update(&tctx->key, NULL, 0, ctx->dg, (ctx->len != 0), 0); memcpy(out, ctx->dg, AES_BLOCK_SIZE); diff --git a/arch/arm64/crypto/aes-neonbs-glue.c b/arch/arm64/crypto/aes-neonbs-glue.c index bf1b321ff4c1..02b65d9eb947 100644 --- a/arch/arm64/crypto/aes-neonbs-glue.c +++ b/arch/arm64/crypto/aes-neonbs-glue.c @@ -288,7 +288,7 @@ static int ctr_encrypt_sync(struct skcipher_request *req) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm); - if (!may_use_simd()) + if (!crypto_simd_usable()) return aes_ctr_encrypt_fallback(&ctx->fallback, req); return ctr_encrypt(req); @@ -304,6 +304,8 @@ static int __xts_crypt(struct skcipher_request *req, int err; err = skcipher_walk_virt(&walk, req, false); + if (err) + return err; kernel_neon_begin(); neon_aes_ecb_encrypt(walk.iv, walk.iv, ctx->twkey, ctx->key.rounds, 1); diff --git a/arch/arm64/crypto/chacha-neon-glue.c b/arch/arm64/crypto/chacha-neon-glue.c index cb054f51c917..82029cda2e77 100644 --- a/arch/arm64/crypto/chacha-neon-glue.c +++ b/arch/arm64/crypto/chacha-neon-glue.c @@ -21,6 +21,7 @@ #include <crypto/algapi.h> #include <crypto/chacha.h> +#include <crypto/internal/simd.h> #include <crypto/internal/skcipher.h> #include <linux/kernel.h> #include <linux/module.h> @@ -90,7 +91,7 @@ static int chacha_neon(struct skcipher_request *req) struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm); - if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd()) + if (req->cryptlen <= CHACHA_BLOCK_SIZE || !crypto_simd_usable()) return crypto_chacha_crypt(req); return chacha_neon_stream_xor(req, ctx, req->iv); @@ -104,7 +105,7 @@ static int xchacha_neon(struct skcipher_request *req) u32 state[16]; u8 real_iv[16]; - if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd()) + if (req->cryptlen <= CHACHA_BLOCK_SIZE || !crypto_simd_usable()) return crypto_xchacha_crypt(req); crypto_chacha_init(state, ctx, req->iv); diff --git a/arch/arm64/crypto/crct10dif-ce-glue.c b/arch/arm64/crypto/crct10dif-ce-glue.c index e81d5bd555c0..2e0a7d2eee24 100644 --- a/arch/arm64/crypto/crct10dif-ce-glue.c +++ b/arch/arm64/crypto/crct10dif-ce-glue.c @@ -16,6 +16,7 @@ #include <linux/string.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <asm/neon.h> #include <asm/simd.h> @@ -38,7 +39,7 @@ static int crct10dif_update_pmull_p8(struct shash_desc *desc, const u8 *data, { u16 *crc = shash_desc_ctx(desc); - if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) { + if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) { kernel_neon_begin(); *crc = crc_t10dif_pmull_p8(*crc, data, length); kernel_neon_end(); @@ -54,7 +55,7 @@ static int crct10dif_update_pmull_p64(struct shash_desc *desc, const u8 *data, { u16 *crc = shash_desc_ctx(desc); - if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) { + if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) { kernel_neon_begin(); *crc = crc_t10dif_pmull_p64(*crc, data, length); kernel_neon_end(); diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c index 4e69bb78ea89..b39ed99b06fb 100644 --- a/arch/arm64/crypto/ghash-ce-glue.c +++ b/arch/arm64/crypto/ghash-ce-glue.c @@ -17,6 +17,7 @@ #include <crypto/gf128mul.h> #include <crypto/internal/aead.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/internal/skcipher.h> #include <crypto/scatterwalk.h> #include <linux/cpufeature.h> @@ -89,7 +90,7 @@ static void ghash_do_update(int blocks, u64 dg[], const char *src, struct ghash_key const *k, const char *head)) { - if (likely(may_use_simd())) { + if (likely(crypto_simd_usable())) { kernel_neon_begin(); simd_update(blocks, dg, src, key, head); kernel_neon_end(); @@ -441,7 +442,7 @@ static int gcm_encrypt(struct aead_request *req) err = skcipher_walk_aead_encrypt(&walk, req, false); - if (likely(may_use_simd() && walk.total >= 2 * AES_BLOCK_SIZE)) { + if (likely(crypto_simd_usable() && walk.total >= 2 * AES_BLOCK_SIZE)) { u32 const *rk = NULL; kernel_neon_begin(); @@ -473,9 +474,11 @@ static int gcm_encrypt(struct aead_request *req) put_unaligned_be32(2, iv + GCM_IV_SIZE); while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) { - int blocks = walk.nbytes / AES_BLOCK_SIZE; + const int blocks = + walk.nbytes / (2 * AES_BLOCK_SIZE) * 2; u8 *dst = walk.dst.virt.addr; u8 *src = walk.src.virt.addr; + int remaining = blocks; do { __aes_arm64_encrypt(ctx->aes_key.key_enc, @@ -485,9 +488,9 @@ static int gcm_encrypt(struct aead_request *req) dst += AES_BLOCK_SIZE; src += AES_BLOCK_SIZE; - } while (--blocks > 0); + } while (--remaining > 0); - ghash_do_update(walk.nbytes / AES_BLOCK_SIZE, dg, + ghash_do_update(blocks, dg, walk.dst.virt.addr, &ctx->ghash_key, NULL, pmull_ghash_update_p64); @@ -563,7 +566,7 @@ static int gcm_decrypt(struct aead_request *req) err = skcipher_walk_aead_decrypt(&walk, req, false); - if (likely(may_use_simd() && walk.total >= 2 * AES_BLOCK_SIZE)) { + if (likely(crypto_simd_usable() && walk.total >= 2 * AES_BLOCK_SIZE)) { u32 const *rk = NULL; kernel_neon_begin(); @@ -609,7 +612,7 @@ static int gcm_decrypt(struct aead_request *req) put_unaligned_be32(2, iv + GCM_IV_SIZE); while (walk.nbytes >= (2 * AES_BLOCK_SIZE)) { - int blocks = walk.nbytes / AES_BLOCK_SIZE; + int blocks = walk.nbytes / (2 * AES_BLOCK_SIZE) * 2; u8 *dst = walk.dst.virt.addr; u8 *src = walk.src.virt.addr; diff --git a/arch/arm64/crypto/nhpoly1305-neon-glue.c b/arch/arm64/crypto/nhpoly1305-neon-glue.c index 38a589044b6c..895d3727c1fb 100644 --- a/arch/arm64/crypto/nhpoly1305-neon-glue.c +++ b/arch/arm64/crypto/nhpoly1305-neon-glue.c @@ -9,6 +9,7 @@ #include <asm/neon.h> #include <asm/simd.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/nhpoly1305.h> #include <linux/module.h> @@ -25,7 +26,7 @@ static void _nh_neon(const u32 *key, const u8 *message, size_t message_len, static int nhpoly1305_neon_update(struct shash_desc *desc, const u8 *src, unsigned int srclen) { - if (srclen < 64 || !may_use_simd()) + if (srclen < 64 || !crypto_simd_usable()) return crypto_nhpoly1305_update(desc, src, srclen); do { diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c index 17fac2889f56..eaa7a8258f1c 100644 --- a/arch/arm64/crypto/sha1-ce-glue.c +++ b/arch/arm64/crypto/sha1-ce-glue.c @@ -12,6 +12,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sha.h> #include <crypto/sha1_base.h> #include <linux/cpufeature.h> @@ -38,7 +39,7 @@ static int sha1_ce_update(struct shash_desc *desc, const u8 *data, { struct sha1_ce_state *sctx = shash_desc_ctx(desc); - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sha1_update(desc, data, len); sctx->finalize = 0; @@ -56,7 +57,7 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data, struct sha1_ce_state *sctx = shash_desc_ctx(desc); bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE); - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sha1_finup(desc, data, len, out); /* @@ -78,7 +79,7 @@ static int sha1_ce_final(struct shash_desc *desc, u8 *out) { struct sha1_ce_state *sctx = shash_desc_ctx(desc); - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sha1_finup(desc, NULL, 0, out); sctx->finalize = 0; diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c index 261f5195cab7..a725997e55f2 100644 --- a/arch/arm64/crypto/sha2-ce-glue.c +++ b/arch/arm64/crypto/sha2-ce-glue.c @@ -12,6 +12,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sha.h> #include <crypto/sha256_base.h> #include <linux/cpufeature.h> @@ -42,7 +43,7 @@ static int sha256_ce_update(struct shash_desc *desc, const u8 *data, { struct sha256_ce_state *sctx = shash_desc_ctx(desc); - if (!may_use_simd()) + if (!crypto_simd_usable()) return sha256_base_do_update(desc, data, len, (sha256_block_fn *)sha256_block_data_order); @@ -61,7 +62,7 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data, struct sha256_ce_state *sctx = shash_desc_ctx(desc); bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { if (len) sha256_base_do_update(desc, data, len, (sha256_block_fn *)sha256_block_data_order); @@ -90,7 +91,7 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out) { struct sha256_ce_state *sctx = shash_desc_ctx(desc); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_block_data_order); return sha256_base_finish(desc, out); diff --git a/arch/arm64/crypto/sha256-glue.c b/arch/arm64/crypto/sha256-glue.c index 0cccdb9cc2c0..e62298740e31 100644 --- a/arch/arm64/crypto/sha256-glue.c +++ b/arch/arm64/crypto/sha256-glue.c @@ -14,6 +14,7 @@ #include <asm/neon.h> #include <asm/simd.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sha.h> #include <crypto/sha256_base.h> #include <linux/cryptohash.h> @@ -89,7 +90,7 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data, { struct sha256_state *sctx = shash_desc_ctx(desc); - if (!may_use_simd()) + if (!crypto_simd_usable()) return sha256_base_do_update(desc, data, len, (sha256_block_fn *)sha256_block_data_order); @@ -119,7 +120,7 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data, static int sha256_finup_neon(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { - if (!may_use_simd()) { + if (!crypto_simd_usable()) { if (len) sha256_base_do_update(desc, data, len, (sha256_block_fn *)sha256_block_data_order); diff --git a/arch/arm64/crypto/sha3-ce-glue.c b/arch/arm64/crypto/sha3-ce-glue.c index a336feac0f59..9a4bbfc45f40 100644 --- a/arch/arm64/crypto/sha3-ce-glue.c +++ b/arch/arm64/crypto/sha3-ce-glue.c @@ -14,6 +14,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sha3.h> #include <linux/cpufeature.h> #include <linux/crypto.h> @@ -32,7 +33,7 @@ static int sha3_update(struct shash_desc *desc, const u8 *data, struct sha3_state *sctx = shash_desc_ctx(desc); unsigned int digest_size = crypto_shash_digestsize(desc->tfm); - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sha3_update(desc, data, len); if ((sctx->partial + len) >= sctx->rsiz) { @@ -76,7 +77,7 @@ static int sha3_final(struct shash_desc *desc, u8 *out) __le64 *digest = (__le64 *)out; int i; - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sha3_final(desc, out); sctx->buf[sctx->partial++] = 0x06; diff --git a/arch/arm64/crypto/sha512-ce-glue.c b/arch/arm64/crypto/sha512-ce-glue.c index f2c5f28c622a..2369540040aa 100644 --- a/arch/arm64/crypto/sha512-ce-glue.c +++ b/arch/arm64/crypto/sha512-ce-glue.c @@ -13,6 +13,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sha.h> #include <crypto/sha512_base.h> #include <linux/cpufeature.h> @@ -31,7 +32,7 @@ asmlinkage void sha512_block_data_order(u64 *digest, u8 const *src, int blocks); static int sha512_ce_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - if (!may_use_simd()) + if (!crypto_simd_usable()) return sha512_base_do_update(desc, data, len, (sha512_block_fn *)sha512_block_data_order); @@ -46,7 +47,7 @@ static int sha512_ce_update(struct shash_desc *desc, const u8 *data, static int sha512_ce_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { - if (!may_use_simd()) { + if (!crypto_simd_usable()) { if (len) sha512_base_do_update(desc, data, len, (sha512_block_fn *)sha512_block_data_order); @@ -65,7 +66,7 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data, static int sha512_ce_final(struct shash_desc *desc, u8 *out) { - if (!may_use_simd()) { + if (!crypto_simd_usable()) { sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_block_data_order); return sha512_base_finish(desc, out); diff --git a/arch/arm64/crypto/sm3-ce-glue.c b/arch/arm64/crypto/sm3-ce-glue.c index 88938a20d9b2..5d15533799a2 100644 --- a/arch/arm64/crypto/sm3-ce-glue.c +++ b/arch/arm64/crypto/sm3-ce-glue.c @@ -12,6 +12,7 @@ #include <asm/simd.h> #include <asm/unaligned.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/sm3.h> #include <crypto/sm3_base.h> #include <linux/cpufeature.h> @@ -28,7 +29,7 @@ asmlinkage void sm3_ce_transform(struct sm3_state *sst, u8 const *src, static int sm3_ce_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sm3_update(desc, data, len); kernel_neon_begin(); @@ -40,7 +41,7 @@ static int sm3_ce_update(struct shash_desc *desc, const u8 *data, static int sm3_ce_final(struct shash_desc *desc, u8 *out) { - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sm3_finup(desc, NULL, 0, out); kernel_neon_begin(); @@ -53,7 +54,7 @@ static int sm3_ce_final(struct shash_desc *desc, u8 *out) static int sm3_ce_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *out) { - if (!may_use_simd()) + if (!crypto_simd_usable()) return crypto_sm3_finup(desc, data, len, out); kernel_neon_begin(); diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c index 0c4fc223f225..2754c875d39c 100644 --- a/arch/arm64/crypto/sm4-ce-glue.c +++ b/arch/arm64/crypto/sm4-ce-glue.c @@ -3,6 +3,7 @@ #include <asm/neon.h> #include <asm/simd.h> #include <crypto/sm4.h> +#include <crypto/internal/simd.h> #include <linux/module.h> #include <linux/cpufeature.h> #include <linux/crypto.h> @@ -20,7 +21,7 @@ static void sm4_ce_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { crypto_sm4_encrypt(tfm, out, in); } else { kernel_neon_begin(); @@ -33,7 +34,7 @@ static void sm4_ce_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm); - if (!may_use_simd()) { + if (!crypto_simd_usable()) { crypto_sm4_decrypt(tfm, out, in); } else { kernel_neon_begin(); |