diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-4.19/046-crypto-qce-initialize-fallback-only-for-AES.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-4.19/046-crypto-qce-initialize-fallback-only-for-AES.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/ipq40xx/patches-4.19/046-crypto-qce-initialize-fallback-only-for-AES.patch b/target/linux/ipq40xx/patches-4.19/046-crypto-qce-initialize-fallback-only-for-AES.patch new file mode 100644 index 0000000000..e3adaf864e --- /dev/null +++ b/target/linux/ipq40xx/patches-4.19/046-crypto-qce-initialize-fallback-only-for-AES.patch @@ -0,0 +1,54 @@ +From f2a33ce18232919d3831d1c61a06b6067209282d Mon Sep 17 00:00:00 2001 +From: Eneas U de Queiroz <cotequeiroz@gmail.com> +Date: Fri, 22 Nov 2019 09:34:29 -0300 +Subject: [PATCH] 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 anything other than AES. + +The rest of the code is unchanged, as the use of the fallback is already +restricted to AES. + +Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com> + +--- a/drivers/crypto/qce/skcipher.c ++++ b/drivers/crypto/qce/skcipher.c +@@ -246,7 +246,15 @@ static int qce_skcipher_init(struct cryp + + 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); ++ int ret; + ++ qce_skcipher_init(tfm); + ctx->fallback = crypto_alloc_skcipher(crypto_tfm_alg_name(&tfm->base), + 0, CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK); +@@ -375,14 +383,18 @@ static int qce_skcipher_register_one(con + + 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; |