#include <linux/crc32c.h>
#include <linux/compiler.h>
#include <linux/module.h>
-#include <asm/byteorder.h>
MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations");
* loop below with crc32 and vary the POLY if we don't find value in terms
* of space and maintainability in keeping the two modules separate.
*/
-u32 __attribute_pure__
+u32 __pure
crc32c_le(u32 crc, unsigned char const *p, size_t len)
{
int i;
* reflect output bytes = true
*/
-static u32 crc32c_table[256] = {
+static const u32 crc32c_table[256] = {
0x00000000L, 0xF26B8303L, 0xE13B70F7L, 0x1350F3F4L,
0xC79A971FL, 0x35F1141CL, 0x26A1E7E8L, 0xD4CA64EBL,
0x8AD958CFL, 0x78B2DBCCL, 0x6BE22838L, 0x9989AB3BL,
* crc using table.
*/
-u32 __attribute_pure__
-crc32c_le(u32 seed, unsigned char const *data, size_t length)
+u32 __pure
+crc32c_le(u32 crc, unsigned char const *data, size_t length)
{
- u32 crc = __cpu_to_le32(seed);
-
while (length--)
crc =
crc32c_table[(crc ^ *data++) & 0xFFL] ^ (crc >> 8);
- return __le32_to_cpu(crc);
+ return crc;
}
#endif /* CRC_LE_BITS == 8 */
EXPORT_SYMBOL(crc32c_be);
#if CRC_BE_BITS == 1
-u32 __attribute_pure__
+u32 __pure
crc32c_be(u32 crc, unsigned char const *p, size_t len)
{
int i;