From 82bc79e717394185d6774744f4471559ea112e3b Mon Sep 17 00:00:00 2001 From: Ken Sumrall Date: Wed, 12 Jan 2011 15:58:37 -0800 Subject: [PATCH] crypto: tegra-aes: Hack to disable HW AES for dm-crypt The hardware aes engine is required for key management for HDCP, but since it's performance is bad, we don't want it enabled for dm-crypt. This hack changes the cra_name field so dm-crypt won't find a match, but leaves the cra_driver_name field unchanged to the device file interface will still find it. Signed-off-by: Ken Sumrall --- drivers/crypto/tegra-aes.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c index 16e3cec70731..f7dd72964f0c 100644 --- a/drivers/crypto/tegra-aes.c +++ b/drivers/crypto/tegra-aes.c @@ -898,7 +898,7 @@ static int tegra_aes_cra_init(struct crypto_tfm *tfm) static struct crypto_alg algs[] = { { - .cra_name = "ecb(aes)", + .cra_name = "disabled_ecb(aes)", .cra_driver_name = "ecb-aes-tegra", .cra_priority = 100, .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, @@ -916,7 +916,7 @@ static struct crypto_alg algs[] = { .decrypt = tegra_aes_ecb_decrypt, }, }, { - .cra_name = "cbc(aes)", + .cra_name = "disabled_cbc(aes)", .cra_driver_name = "cbc-aes-tegra", .cra_priority = 100, .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, @@ -935,7 +935,7 @@ static struct crypto_alg algs[] = { .decrypt = tegra_aes_cbc_decrypt, } }, { - .cra_name = "ansi_cprng", + .cra_name = "disabled_ansi_cprng", .cra_driver_name = "rng-aes-tegra", .cra_priority = 100, .cra_flags = CRYPTO_ALG_TYPE_RNG, -- 2.34.1