centos man page for compare_ether_header

COMPARE_ETHER_HEADER(9) 				      Network device support					   COMPARE_ETHER_HEADER(9)

NAME
       compare_ether_header - Compare two Ethernet headers

SYNOPSIS
       unsigned long compare_ether_header(const void * a, const void * b);

ARGUMENTS
       a
	   Pointer to Ethernet header

       b
	   Pointer to Ethernet header

DESCRIPTION
       Compare two Ethernet headers, returns 0 if equal. This assumes that the network header (i.e., IP header) is 4-byte aligned OR the platform
       can handle unaligned access. This is the case for all packets coming into netif_receive_skb or similar entry points.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   COMPARE_ETHER_HEADER(9)