From: Nicolas Toromanoff nicolas.toromanoff@st.com
[ 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: b51dbe90912a ("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 --- drivers/crypto/stm32/stm32-crc32.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/stm32/stm32-crc32.c b/drivers/crypto/stm32/stm32-crc32.c index c6156bf6c603..1c3e411b7acb 100644 --- a/drivers/crypto/stm32/stm32-crc32.c +++ b/drivers/crypto/stm32/stm32-crc32.c @@ -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; }