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crypto: stm32/crc32 - fix run-time self test issue.

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[ Upstream commit a8cc3128bf2c01c4d448fe17149e87132113b445 ]

Fix wrong crc32 initialisation value:
"alg: shash: stm32_crc32 test failed (wrong result) on test vector 0,
cfg="init+update+final aligned buffer"
cra_name="crc32c" expects an init value of 0XFFFFFFFF,
cra_name="crc32" expects an init value of 0.

Fixes: b51dbe9091 ("crypto: stm32 - Support for STM32 CRC32 crypto module")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nicolas Toromanoff 2020-05-12 16:11:10 +02:00 • committed by Greg Kroah-Hartman
commit d879598b8d
1 changed files with 3 additions and 3 deletions
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6
drivers/crypto/stm32/stm32-crc32.c
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@ -28,10 +28,10 @@
/* Registers values */
#define CRC_CR_RESET BIT(0)
#define CRC_INIT_DEFAULT 0xFFFFFFFF
#define CRC_CR_REV_IN_WORD (BIT(6) | BIT(5))
#define CRC_CR_REV_IN_BYTE BIT(5)
#define CRC_CR_REV_OUT BIT(7)
#define CRC32C_INIT_DEFAULT 0xFFFFFFFF
#define CRC_AUTOSUSPEND_DELAY 50
@ -65,7 +65,7 @@ static int stm32_crc32_cra_init(struct crypto_tfm *tfm)
{
struct stm32_crc_ctx *mctx = crypto_tfm_ctx(tfm);
mctx->key = CRC_INIT_DEFAULT;
mctx->key = 0;
mctx->poly = CRC32_POLY_LE;
return 0;
}
@ -74,7 +74,7 @@ static int stm32_crc32c_cra_init(struct crypto_tfm *tfm)
{
struct stm32_crc_ctx *mctx = crypto_tfm_ctx(tfm);
mctx->key = CRC_INIT_DEFAULT;
mctx->key = CRC32C_INIT_DEFAULT;
mctx->poly = CRC32C_POLY_LE;
return 0;
}