crypto_hash_walk_done
return crypto_hash_walk_done(&hwh->walk, n);
hwh->walkbytes = crypto_hash_walk_done(&hwh->walk, 0);
EXPORT_SYMBOL_GPL(crypto_hash_walk_done);
nbytes = crypto_hash_walk_done(&walk, nbytes))
nbytes = crypto_hash_walk_done(&walk, nbytes);
int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);