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crypto: shash - Add shash_instance

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This patch adds shash_instance and the associated alloc/free
functions.  This is meant to be an instance that with a shash
algorithm under it.  Note that the instance itself doesn't have
to be shash.

Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Herbert Xu 2009-07-07 15:17:12 +08:00
commit 2e4fddd8e4
2 changed files with 33 additions and 0 deletions
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7
crypto/shash.c
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@ -502,5 +502,12 @@ int crypto_unregister_shash(struct shash_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_unregister_shash);
void shash_free_instance(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
kfree(shash_instance(inst));
}
EXPORT_SYMBOL_GPL(shash_free_instance);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");