diff options
Diffstat (limited to 'lfs_util.c')
| -rw-r--r-- | lfs_util.c | 8 |
1 files changed, 3 insertions, 5 deletions
@@ -7,7 +7,7 @@ #include "lfs_util.h" -uint32_t lfs_crc(uint32_t crc, const void *buffer, size_t size) { +void lfs_crc(uint32_t *restrict crc, const void *buffer, size_t size) { static const uint32_t rtable[16] = { 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, @@ -18,10 +18,8 @@ uint32_t lfs_crc(uint32_t crc, const void *buffer, size_t size) { const uint8_t *data = buffer; for (size_t i = 0; i < size; i++) { - crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 0)) & 0xf]; - crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 4)) & 0xf]; + *crc = (*crc >> 4) ^ rtable[(*crc ^ (data[i] >> 0)) & 0xf]; + *crc = (*crc >> 4) ^ rtable[(*crc ^ (data[i] >> 4)) & 0xf]; } - - return crc; } |