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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>
This commit is contained in:
Krzysztof Kozlowski 2018-07-17 18:05:38 +02:00 committed by Herbert Xu
parent e37f2f93af
commit f7aee87822
1 changed files with 4 additions and 7 deletions
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11
drivers/crypto/stm32/stm32_crc32.c
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@ -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;