From 2a17989acb2e0c73f4631cd73a7ebe37172545c9 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 21 May 2019 13:34:18 +0000 Subject: [PATCH] crypto: talitos - Align SEC1 accesses to 32 bits boundaries. [ Upstream commit c9cca7034b34a2d82e9a03b757de2485c294851c ] 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 Fixes: 9c4a79653b35 ("crypto: talitos - Freescale integrated security engine (SEC) driver") Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/talitos.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 62dca638105d..a0cd4f6085d0 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -3119,7 +3119,10 @@ 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; -- 2.20.1