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crypto: shash - remove pointless checks of shash_alg::{export,import}
crypto_init_shash_ops_async() only gives the ahash tfm non-NULL ->export() and ->import() if the underlying shash alg has these non-NULL. This doesn't make sense because when an shash algorithm is registered, shash_prepare_alg() sets a default ->export() and ->import() if the implementor didn't provide them. And elsewhere it's assumed that all shash algs and ahash tfms have non-NULL ->export() and ->import(). Therefore, remove these unnecessary, always-true conditions. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -388,9 +388,7 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
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crypto_ahash_set_flags(crt, crypto_shash_get_flags(shash) &
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CRYPTO_TFM_NEED_KEY);
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if (alg->export)
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crt->export = shash_async_export;
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if (alg->import)
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crt->import = shash_async_import;
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crt->reqsize = sizeof(struct shash_desc) + crypto_shash_descsize(shash);
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