diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-09 20:36:44 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-11 18:23:33 +0800 |
| commit | 8267adab9433593adb09d94626475c2a5921f111 (patch) | |
| tree | f05bc75fb3b6ee993bfb1d94715f794dc2d7ef40 /crypto/shash.c | |
| parent | 99d27e1c59e34869605de625b033c52163f5bfa7 (diff) | |
| download | lwn-8267adab9433593adb09d94626475c2a5921f111.tar.gz lwn-8267adab9433593adb09d94626475c2a5921f111.zip | |
crypto: shash - Move finup/digest null checks to registration time
This patch moves the run-time null finup/digest checks to the
shash_prepare_alg function which is run at registration time.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/shash.c')
| -rw-r--r-- | crypto/shash.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 14a3b707a31f..f7fcc652ff32 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -142,8 +142,7 @@ int crypto_shash_finup(struct shash_desc *desc, const u8 *data, struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); - if (((unsigned long)data | (unsigned long)out) & alignmask || - !shash->finup) + if (((unsigned long)data | (unsigned long)out) & alignmask) return shash_finup_unaligned(desc, data, len, out); return shash->finup(desc, data, len, out); @@ -164,8 +163,7 @@ int crypto_shash_digest(struct shash_desc *desc, const u8 *data, struct shash_alg *shash = crypto_shash_alg(tfm); unsigned long alignmask = crypto_shash_alignmask(tfm); - if (((unsigned long)data | (unsigned long)out) & alignmask || - !shash->digest) + if (((unsigned long)data | (unsigned long)out) & alignmask) return shash_digest_unaligned(desc, data, len, out); return shash->digest(desc, data, len, out); @@ -488,6 +486,10 @@ static int shash_prepare_alg(struct shash_alg *alg) base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; base->cra_flags |= CRYPTO_ALG_TYPE_SHASH; + if (!alg->finup) + alg->finup = shash_finup_unaligned; + if (!alg->digest) + alg->digest = shash_digest_unaligned; if (!alg->import) alg->import = shash_no_import; if (!alg->export) |