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crypto: shash - Add __crypto_shash_cast

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This patch adds __crypto_shash_cast which turns a crypto_tfm
into crypto_shash.  It's analogous to the other __crypto_*_cast
functions.

It hasn't been needed until now since no existing shash algorithms
have had an init function.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2009-07-08 22:36:36 +08:00
parent cde6263fa9
commit 0390e6aecf
1 changed files with 5 additions and 0 deletions
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5
include/crypto/internal/hash.h
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@ -128,5 +128,10 @@ static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
return crypto_tfm_ctx_aligned(&tfm->base);
}
static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
{
return (struct crypto_shash *)tfm;
}
#endif /* _CRYPTO_INTERNAL_HASH_H */