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crypto: pcbc - remove ability to wrap internal ciphers

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Following commit 944585a64f ("crypto: x86/aes-ni - remove special
handling of AES in PCBC mode"), it's no longer needed for the PCBC
template to support wrapping a cipher that has the CRYPTO_ALG_INTERNAL
flag set.  Thus, remove this now-unused functionality to make PCBC
consistent with the other single block cipher templates.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2019-01-03 20:16:21 -08:00 committed by Herbert Xu
parent 21f3ca6cd5
commit fb6de25c3b
1 changed files with 3 additions and 7 deletions
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10
crypto/pcbc.c
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@ -219,18 +219,15 @@ static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
if (IS_ERR(algt))
return PTR_ERR(algt);
if (((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) &
~CRYPTO_ALG_INTERNAL)
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return -ENOMEM;
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER |
(algt->type & CRYPTO_ALG_INTERNAL),
CRYPTO_ALG_TYPE_MASK |
(algt->mask & CRYPTO_ALG_INTERNAL));
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
err = PTR_ERR(alg);
if (IS_ERR(alg))
goto err_free_inst;
@ -245,7 +242,6 @@ static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
goto err_drop_spawn;
inst->alg.base.cra_flags = alg->cra_flags & CRYPTO_ALG_INTERNAL;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
inst->alg.base.cra_alignmask = alg->cra_alignmask;