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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/include/linux/crc32.h | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/include/linux/crc32.h')
-rw-r--r-- | roms/u-boot/include/linux/crc32.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/roms/u-boot/include/linux/crc32.h b/roms/u-boot/include/linux/crc32.h new file mode 100644 index 000000000..ac4aed1c7 --- /dev/null +++ b/roms/u-boot/include/linux/crc32.h @@ -0,0 +1,27 @@ +/* + * crc32.h + * See linux/lib/crc32.c for license and changes + */ +#ifndef _LINUX_CRC32_H +#define _LINUX_CRC32_H + +#include <linux/types.h> +/* #include <linux/bitrev.h> */ + +extern u32 crc32_le(u32 crc, unsigned char const *p, size_t len); +/* extern u32 crc32_be(u32 crc, unsigned char const *p, size_t len); */ + +#define crc32(seed, data, length) crc32_le(seed, (unsigned char const *)data, length) + +/* + * Helpers for hash table generation of ethernet nics: + * + * Ethernet sends the least significant bit of a byte first, thus crc32_le + * is used. The output of crc32_le is bit reversed [most significant bit + * is in bit nr 0], thus it must be reversed before use. Except for + * nics that bit swap the result internally... + */ +/* #define ether_crc(length, data) bitrev32(crc32_le(~0, data, length)) */ +/* #define ether_crc_le(length, data) crc32_le(~0, data, length) */ + +#endif /* _LINUX_CRC32_H */ |