diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2018-07-17 18:05:38 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-07-27 19:16:36 +0800 |
| commit | f7aee87822fdb7c43b9510e196cb74cc1bb9bb1e (patch) | |
| tree | 8b9a8f8c7d68a814b76287d27dead96522009bac /drivers/crypto | |
| parent | e37f2f93afe594682702439ca34eb8130598cdf2 (diff) | |
crypto: stm32_crc32 - Use existing define with polynomial
Do not define again the polynomial but use header with existing define.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/stm32/stm32_crc32.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/crypto/stm32/stm32_crc32.c b/drivers/crypto/stm32/stm32_crc32.c index 04ba5e1399e5..5f3242a246fc 100644 --- a/drivers/crypto/stm32/stm32_crc32.c +++ b/drivers/crypto/stm32/stm32_crc32.c @@ -6,6 +6,7 @@ #include <linux/bitrev.h> #include <linux/clk.h> +#include <linux/crc32poly.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> @@ -29,10 +30,6 @@ #define CRC_CR_REVERSE (BIT(7) | BIT(6) | BIT(5)) #define CRC_INIT_DEFAULT 0xFFFFFFFF -/* Polynomial reversed */ -#define POLY_CRC32 0xEDB88320 -#define POLY_CRC32C 0x82F63B78 - #define CRC_AUTOSUSPEND_DELAY 50 struct stm32_crc { @@ -69,7 +66,7 @@ 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->poly = POLY_CRC32; + mctx->poly = CRC32_POLY_LE; return 0; } @@ -78,7 +75,7 @@ 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->poly = POLY_CRC32C; + mctx->poly = CRC32C_POLY_LE; return 0; } @@ -187,7 +184,7 @@ static int stm32_crc_final(struct shash_desc *desc, u8 *out) struct stm32_crc_ctx *mctx = crypto_shash_ctx(desc->tfm); /* Send computed CRC */ - put_unaligned_le32(mctx->poly == POLY_CRC32C ? + put_unaligned_le32(mctx->poly == CRC32C_POLY_LE ? ~ctx->partial : ctx->partial, out); return 0; |