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crypto: tegra-aes: Hack to disable HW AES for dm-crypt

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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 <ksumrall@android.com>
This commit is contained in:
Ken Sumrall
2011-01-12 15:58:37 -08:00
parent 67c21536bf
commit 82bc79e717
1 changed files with 3 additions and 3 deletions
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6
drivers/crypto/tegra-aes.c
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@@ -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,