SuSE 11.3 - man page for compare_ether_addr (suse section 9)

COMPARE_ETHER_ADDR(9)				Network device support				COMPARE_ETHER_ADDR(9)

NAME
       compare_ether_addr - Compare two Ethernet addresses

SYNOPSIS
       unsigned compare_ether_addr(const u8 * addr1, const u8 * addr2);

ARGUMENTS
       addr1
	   Pointer to a six-byte array containing the Ethernet address

       addr2
	   Pointer other six-byte array containing the Ethernet address

DESCRIPTION
       Compare two ethernet addresses, returns 0 if equal

COPYRIGHT
Kernel Hackers Manual 2.6.			      July 2010 				COMPARE_ETHER_ADDR(9)