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authornaddy <naddy@FreeBSD.org>2004-06-09 14:34:04 +0000
committernaddy <naddy@FreeBSD.org>2004-06-09 14:34:04 +0000
commit03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1 (patch)
tree63c1a8adb963adf2b159557569195cbc8c219d33 /sys/dev/usb/if_cue.c
parentd57aeb149e038b4931b3859597fe80119588eebc (diff)
downloadFreeBSD-src-03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1.zip
FreeBSD-src-03b06cd9a3bb0e9d75237994d18bd6d3b6469ac1.tar.gz
Replace handrolled CRC calculation with ether_crc32_[lb]e().
Diffstat (limited to 'sys/dev/usb/if_cue.c')
-rw-r--r--sys/dev/usb/if_cue.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/sys/dev/usb/if_cue.c b/sys/dev/usb/if_cue.c
index 3ea9596..d7f5f6b 100644
--- a/sys/dev/usb/if_cue.c
+++ b/sys/dev/usb/if_cue.c
@@ -323,23 +323,15 @@ cue_getmac(struct cue_softc *sc, void *buf)
return(0);
}
-#define CUE_POLY 0xEDB88320
#define CUE_BITS 9
Static uint32_t
cue_mchash(const uint8_t *addr)
{
uint32_t crc;
- int idx, bit;
- uint8_t data;
/* Compute CRC for the address value. */
- crc = 0xFFFFFFFF; /* initial value */
-
- for (idx = 0; idx < 6; idx++) {
- for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
- crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0);
- }
+ crc = ether_crc32_le(addr, ETHER_ADDR_LEN);
return (crc & ((1 << CUE_BITS) - 1));
}
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