On Thu, 2013-03-28 at 11:32 -0500, Kent Yoder wrote:
> Hi Ben, will you carry this patch in the linuxppc-dev tree?
I can but I'm on vacation until end of April roughly.
Cheers,
Ben.
> Thanks,
> Kent
>
> ---------- Forwarded message ----------
> From: Kent Yoder <shpedoikal@xxxxxxxxx>
> Date: Wed, Mar 20, 2013 at 9:22 AM
> Subject: [PATCH v2] drivers/crypto/nx: fix init race, alignmasks and GCM bug
> To: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linux-crypto@xxxxxxxxxxxxxxx, Benjamin Herrenschmidt
> <benh@xxxxxxxxxxxxxxxxxxx>
>
>
> Fixes a race on driver init with registering algorithms where the
> driver status flag wasn't being set before self testing started.
>
> Added the cra_alignmask field for CBC and ECB modes.
>
> Fixed a bug in GCM where AES block size was being used instead of
> authsize.
>
> Signed-off-by: Kent Yoder <key@xxxxxxxxxxxxxxxxxx>
> ---
> Only changes in v2 were to leave stable off the cc and add Ben for PPC.
>
> drivers/crypto/nx/nx-aes-cbc.c | 1 +
> drivers/crypto/nx/nx-aes-ecb.c | 1 +
> drivers/crypto/nx/nx-aes-gcm.c | 2 +-
> drivers/crypto/nx/nx.c | 4 ++--
> 4 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/crypto/nx/nx-aes-cbc.c b/drivers/crypto/nx/nx-aes-cbc.c
> index a76d4c4..35d483f 100644
> --- a/drivers/crypto/nx/nx-aes-cbc.c
> +++ b/drivers/crypto/nx/nx-aes-cbc.c
> @@ -126,6 +126,7 @@ struct crypto_alg nx_cbc_aes_alg = {
> .cra_blocksize = AES_BLOCK_SIZE,
> .cra_ctxsize = sizeof(struct nx_crypto_ctx),
> .cra_type = &crypto_blkcipher_type,
> + .cra_alignmask = 0xf,
> .cra_module = THIS_MODULE,
> .cra_init = nx_crypto_ctx_aes_cbc_init,
> .cra_exit = nx_crypto_ctx_exit,
> diff --git a/drivers/crypto/nx/nx-aes-ecb.c b/drivers/crypto/nx/nx-aes-ecb.c
> index ba5f161..7bbc9a8 100644
> --- a/drivers/crypto/nx/nx-aes-ecb.c
> +++ b/drivers/crypto/nx/nx-aes-ecb.c
> @@ -123,6 +123,7 @@ struct crypto_alg nx_ecb_aes_alg = {
> .cra_priority = 300,
> .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
> .cra_blocksize = AES_BLOCK_SIZE,
> + .cra_alignmask = 0xf,
> .cra_ctxsize = sizeof(struct nx_crypto_ctx),
> .cra_type = &crypto_blkcipher_type,
> .cra_module = THIS_MODULE,
> diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
> index c8109ed..6cca6c3 100644
> --- a/drivers/crypto/nx/nx-aes-gcm.c
> +++ b/drivers/crypto/nx/nx-aes-gcm.c
> @@ -219,7 +219,7 @@ static int gcm_aes_nx_crypt(struct aead_request
> *req, int enc)
> if (enc)
> NX_CPB_FDM(csbcpb) |= NX_FDM_ENDE_ENCRYPT;
> else
> - nbytes -= AES_BLOCK_SIZE;
> + nbytes -= crypto_aead_authsize(crypto_aead_reqtfm(req));
>
> csbcpb->cpb.aes_gcm.bit_length_data = nbytes * 8;
>
> diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
> index c767f23..7621d05 100644
> --- a/drivers/crypto/nx/nx.c
> +++ b/drivers/crypto/nx/nx.c
> @@ -454,6 +454,8 @@ static int nx_register_algs(void)
> if (rc)
> goto out;
>
> + nx_driver.of.status = NX_OKAY;
> +
> rc = crypto_register_alg(&nx_ecb_aes_alg);
> if (rc)
> goto out;
> @@ -498,8 +500,6 @@ static int nx_register_algs(void)
> if (rc)
> goto out_unreg_s512;
>
> - nx_driver.of.status = NX_OKAY;
> -
> goto out;
>
> out_unreg_s512:
> --
> 1.7.11.7
> --
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