From: krzk@kernel.org (Krzysztof Kozlowski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/6] crypto: stm32_crc32 - Use existing define with polynomial
Date: Tue, 17 Jul 2018 18:05:38 +0200 [thread overview]
Message-ID: <20180717160541.3843-4-krzk@kernel.org> (raw)
In-Reply-To: <20180717160541.3843-1-krzk@kernel.org>
Do not define again the polynomial but use header with existing define.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
Not tested
It would be nice to get some testing. Only generic lib/crc, bunzip, xz_crc32
and Freescale's Ethernet driver were tested on HW. Rest got just different
builds.
drivers/crypto/stm32/stm32_crc32.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/crypto/stm32/stm32_crc32.c b/drivers/crypto/stm32/stm32_crc32.c
index 040bed5e7725..29d2095d9dfd 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/mod_devicetable.h>
#include <linux/platform_device.h>
@@ -30,10 +31,6 @@
#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 {
@@ -70,7 +67,7 @@ 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;
}
@@ -79,7 +76,7 @@ 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;
}
@@ -188,7 +185,7 @@ 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;
--
2.14.1
next prev parent reply other threads:[~2018-07-17 16:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-17 16:05 [PATCH 0/6] lib/crc32: treewide: Use existing define with polynomial Krzysztof Kozlowski
2018-07-17 16:05 ` [PATCH 1/6] lib/crc: Move polynomial definition to separate header Krzysztof Kozlowski
2018-07-17 16:05 ` [PATCH 2/6] lib/crc: Use consistent naming for CRC-32 polynomials Krzysztof Kozlowski
2018-07-17 16:05 ` Krzysztof Kozlowski [this message]
2018-07-17 16:05 ` [PATCH 4/6] net: ethernet: Use existing define with polynomial Krzysztof Kozlowski
2018-07-17 16:05 ` [PATCH 5/6] staging: rtl: " Krzysztof Kozlowski
2018-07-17 16:05 ` [PATCH 6/6] lib: " Krzysztof Kozlowski
2018-07-18 0:12 ` [PATCH 0/6] lib/crc32: treewide: " Eric Biggers
2018-07-18 6:33 ` Krzysztof Kozlowski
2018-07-27 16:05 ` Herbert Xu
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