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@@ -162,6 +162,12 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
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return ahash->setkey(tfm, key, keylen);
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}
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+static int ahash_nosetkey(struct crypto_ahash *tfm, const u8 *key,
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+ unsigned int keylen)
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+{
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+ return -ENOSYS;
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+}
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+
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int crypto_ahash_import(struct ahash_request *req, const u8 *in)
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{
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struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
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@@ -194,7 +200,7 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
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crt->update = alg->update;
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crt->final = alg->final;
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crt->digest = alg->digest;
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- crt->setkey = ahash_setkey;
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+ crt->setkey = alg->setkey ? ahash_setkey : ahash_nosetkey;
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crt->digestsize = alg->digestsize;
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return 0;
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