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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-05-21 13:34:18 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-05-30 15:30:04 +0800 |
| commit | c9cca7034b34a2d82e9a03b757de2485c294851c (patch) | |
| tree | 3e808aa7b209be12a0d6a17f21e9a2a4f2f3292c | |
| parent | eae55a586c3c8b50982bad3c3426e9c9dd7a0075 (diff) | |
| download | linux-c9cca7034b34a2d82e9a03b757de2485c294851c.tar.bz2 | |
crypto: talitos - Align SEC1 accesses to 32 bits boundaries.
The MPC885 reference manual states:
SEC Lite-initiated 8xx writes can occur only on 32-bit-word boundaries, but
reads can occur on any byte boundary. Writing back a header read from a
non-32-bit-word boundary will yield unpredictable results.
In order to ensure that, cra_alignmask is set to 3 for SEC1.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Fixes: 9c4a79653b35 ("crypto: talitos - Freescale integrated security engine (SEC) driver")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/talitos.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 7c8a3a717b91..750b0159e654 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -3327,7 +3327,10 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev, alg->cra_priority = t_alg->algt.priority; else alg->cra_priority = TALITOS_CRA_PRIORITY; - alg->cra_alignmask = 0; + if (has_ftr_sec1(priv)) + alg->cra_alignmask = 3; + else + alg->cra_alignmask = 0; alg->cra_ctxsize = sizeof(struct talitos_ctx); alg->cra_flags |= CRYPTO_ALG_KERN_DRIVER_ONLY; |