lib/crc: Use consistent naming for CRC-32 polynomials

Header was defining CRCPOLY_LE/BE and CRC32C_POLY_LE but in fact all of them are CRC-32 polynomials so use consistent naming. Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
majek · Jul 27, 2018 · e37f2f9 · e37f2f9
1 parent 1fb2e3f
commit e37f2f9
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Showing 3 changed files with 9 additions and 9 deletions.
diff --git a/include/linux/crc32poly.h b/include/linux/crc32poly.h
@@ -7,8 +7,8 @@
  * *the* standard CRC-32 polynomial, first popularized by Ethernet.
  * x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x^1+x^0
  */
-#define CRCPOLY_LE 0xedb88320
-#define CRCPOLY_BE 0x04c11db7
+#define CRC32_POLY_LE 0xedb88320
+#define CRC32_POLY_BE 0x04c11db7
 
 /*
  * This is the CRC32c polynomial, as outlined by Castagnoli.

diff --git a/lib/crc32.c b/lib/crc32.c
@@ -185,7 +185,7 @@ static inline u32 __pure crc32_le_generic(u32 crc, unsigned char const *p,
 #if CRC_LE_BITS == 1
 u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
 {
-	return crc32_le_generic(crc, p, len, NULL, CRCPOLY_LE);
+	return crc32_le_generic(crc, p, len, NULL, CRC32_POLY_LE);
 }
 u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
 {
@@ -195,7 +195,7 @@ u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
 u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
 {
 	return crc32_le_generic(crc, p, len,
-			(const u32 (*)[256])crc32table_le, CRCPOLY_LE);
+			(const u32 (*)[256])crc32table_le, CRC32_POLY_LE);
 }
 u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
 {
@@ -269,7 +269,7 @@ static u32 __attribute_const__ crc32_generic_shift(u32 crc, size_t len,
 
 u32 __attribute_const__ crc32_le_shift(u32 crc, size_t len)
 {
-	return crc32_generic_shift(crc, len, CRCPOLY_LE);
+	return crc32_generic_shift(crc, len, CRC32_POLY_LE);
 }
 
 u32 __attribute_const__ __crc32c_le_shift(u32 crc, size_t len)
@@ -331,13 +331,13 @@ static inline u32 __pure crc32_be_generic(u32 crc, unsigned char const *p,
 #if CRC_LE_BITS == 1
 u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
 {
-	return crc32_be_generic(crc, p, len, NULL, CRCPOLY_BE);
+	return crc32_be_generic(crc, p, len, NULL, CRC32_POLY_BE);
 }
 #else
 u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
 {
 	return crc32_be_generic(crc, p, len,
-			(const u32 (*)[256])crc32table_be, CRCPOLY_BE);
+			(const u32 (*)[256])crc32table_be, CRC32_POLY_BE);
 }
 #endif
 EXPORT_SYMBOL(crc32_be);
diff --git a/lib/gen_crc32table.c b/lib/gen_crc32table.c
@@ -58,7 +58,7 @@ static void crc32init_le_generic(const uint32_t polynomial,
 
 static void crc32init_le(void)
 {
-	crc32init_le_generic(CRCPOLY_LE, crc32table_le);
+	crc32init_le_generic(CRC32_POLY_LE, crc32table_le);
 }
 
 static void crc32cinit_le(void)
@@ -77,7 +77,7 @@ static void crc32init_be(void)
 	crc32table_be[0][0] = 0;
 
 	for (i = 1; i < BE_TABLE_SIZE; i <<= 1) {
-		crc = (crc << 1) ^ ((crc & 0x80000000) ? CRCPOLY_BE : 0);
+		crc = (crc << 1) ^ ((crc & 0x80000000) ? CRC32_POLY_BE : 0);
 		for (j = 0; j < i; j++)
 			crc32table_be[0][i + j] = crc ^ crc32table_be[0][j];
 	}