ether_addr_equal_64bits(9) centos man page | unix.com

ETHER_ADDR_EQUAL_64B(9) 				      Network device support					   ETHER_ADDR_EQUAL_64B(9)

NAME
       ether_addr_equal_64bits - Compare two Ethernet addresses

SYNOPSIS
       bool ether_addr_equal_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 true if equal, false otherwise.

       The function doesn't need any conditional branches and possibly uses word memory accesses on CPU allowing cheap unaligned memory reads.
       arrays = { byte1, byte2, byte3, byte4, byte5, byte6, pad1, pad2 }

       Please note that alignment of addr1 & addr2 are only guaranteed to be 16 bits.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   ETHER_ADDR_EQUAL_64B(9)