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| author | Tianjia Zhang <tianjia.zhang@linux.alibaba.com> | 2022-10-27 14:54:59 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-11-04 17:34:31 +0800 |
| commit | cb9ba02b07d18172c6a6dcc69410c56482903230 (patch) | |
| tree | a8c249c36a040c9f92a84dc533f3c29758178e3a /arch/arm64/crypto/sm4-ce-glue.c | |
| parent | ce41fefd2443c25166458f24621b53a28fff989f (diff) | |
| download | linux-stable-cb9ba02b07d18172c6a6dcc69410c56482903230.tar.gz linux-stable-cb9ba02b07d18172c6a6dcc69410c56482903230.tar.bz2 linux-stable-cb9ba02b07d18172c6a6dcc69410c56482903230.zip | |
crypto: arm64/sm4 - simplify sm4_ce_expand_key() of CE implementation
Use a 128-bit swap mask and tbl instruction to simplify the implementation
for generating SM4 rkey_dec.
Also fixed the issue of not being wrapped by kernel_neon_begin/end() when
using the sm4_ce_expand_key() function.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/sm4-ce-glue.c')
| -rw-r--r-- | arch/arm64/crypto/sm4-ce-glue.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/crypto/sm4-ce-glue.c b/arch/arm64/crypto/sm4-ce-glue.c index e56e81b1f35f..ff2d8442d473 100644 --- a/arch/arm64/crypto/sm4-ce-glue.c +++ b/arch/arm64/crypto/sm4-ce-glue.c @@ -44,8 +44,10 @@ static int sm4_setkey(struct crypto_skcipher *tfm, const u8 *key, if (key_len != SM4_KEY_SIZE) return -EINVAL; + kernel_neon_begin(); sm4_ce_expand_key(key, ctx->rkey_enc, ctx->rkey_dec, crypto_sm4_fk, crypto_sm4_ck); + kernel_neon_end(); return 0; } |