* Fills MAC header fields, depending on MAC type. Returns 0, If MAC type
* is a valid type and initialization completes correctly 1, otherwise.
*/
-int llc_mac_hdr_init(struct sk_buff *skb, unsigned char *sa, unsigned char *da)
+int llc_mac_hdr_init(struct sk_buff *skb,
+ const unsigned char *sa, const unsigned char *da)
{
int rc = 0;