diff options
| author | Eneas U de Queiroz <cotequeiroz@gmail.com> | 2019-12-20 22:02:17 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-12-27 13:18:04 +0300 |
| commit | 8ceda883205db6dfedb82e39f67feae3b50c95a1 (patch) | |
| tree | 21e8e43ab4c9e34a50fb0081869309cb97ab80c3 | |
| parent | 3e806a12d10af2581aa26c37b58439286eab9782 (diff) | |
| download | linux-8ceda883205db6dfedb82e39f67feae3b50c95a1.tar.xz | |
crypto: qce - initialize fallback only for AES
Adjust cra_flags to add CRYPTO_NEED_FALLBACK only for AES ciphers, where
AES-192 is not handled by the qce hardware, and don't allocate & free
the fallback skcipher for other algorithms.
Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/qce/skcipher.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c index d3852a61cb1d..4217b745f124 100644 --- a/drivers/crypto/qce/skcipher.c +++ b/drivers/crypto/qce/skcipher.c @@ -257,7 +257,14 @@ static int qce_skcipher_init(struct crypto_skcipher *tfm) memset(ctx, 0, sizeof(*ctx)); crypto_skcipher_set_reqsize(tfm, sizeof(struct qce_cipher_reqctx)); + return 0; +} +static int qce_skcipher_init_fallback(struct crypto_skcipher *tfm) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + + qce_skcipher_init(tfm); ctx->fallback = crypto_alloc_sync_skcipher(crypto_tfm_alg_name(&tfm->base), 0, CRYPTO_ALG_NEED_FALLBACK); return PTR_ERR_OR_ZERO(ctx->fallback); @@ -387,14 +394,18 @@ static int qce_skcipher_register_one(const struct qce_skcipher_def *def, alg->base.cra_priority = 300; alg->base.cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK | CRYPTO_ALG_KERN_DRIVER_ONLY; alg->base.cra_ctxsize = sizeof(struct qce_cipher_ctx); alg->base.cra_alignmask = 0; alg->base.cra_module = THIS_MODULE; - alg->init = qce_skcipher_init; - alg->exit = qce_skcipher_exit; + if (IS_AES(def->flags)) { + alg->base.cra_flags |= CRYPTO_ALG_NEED_FALLBACK; + alg->init = qce_skcipher_init_fallback; + alg->exit = qce_skcipher_exit; + } else { + alg->init = qce_skcipher_init; + } INIT_LIST_HEAD(&tmpl->entry); tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_SKCIPHER; |