table of contents
| COMPARE_ETHER_ADDR_6(9) | Network device support | COMPARE_ETHER_ADDR_6(9) |
NAME¶
compare_ether_addr_64bits - Compare two Ethernet addresses
SYNOPSIS¶
unsigned compare_ether_addr_64bits(const u8 addr1[6+2], const u8 addr2[6+2]);
ARGUMENTS¶
addr1[6+2]
Pointer to an array of 8 bytes
addr2[6+2]
Pointer to an other array of 8 bytes
DESCRIPTION¶
Compare two ethernet addresses, returns 0 if equal. Same result than “memcmp(addr1, addr2, ETH_ALEN)” but without conditional branches, and possibly long word memory accesses on CPU allowing cheap unaligned memory reads. arrays = { byte1, byte2, byte3, byte4, byte6, byte7, pad1, pad2}
Please note that alignment of addr1 & addr2 is only guaranted to be 16 bits.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |