libata-sff: ap->[last_]ctl are SFF specific

[safe/jmp/linux-2.6] / include / linux / if_arp.h

diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
index 296e8e8..e80b7f8 100644 (file)
--- a/include/linux/if_arp.h
+++ b/include/linux/if_arp.h
@@ -86,6 +86,10 @@
 #define ARPHRD_IEEE80211 801           /* IEEE 802.11                  */
 #define ARPHRD_IEEE80211_PRISM 802     /* IEEE 802.11 + Prism2 header  */
 #define ARPHRD_IEEE80211_RADIOTAP 803  /* IEEE 802.11 + radiotap header */
+#define ARPHRD_IEEE802154        804
+
+#define ARPHRD_PHONET  820             /* PhoNet media type            */
+#define ARPHRD_PHONET_PIPE 821         /* PhoNet pipe header           */
 
 #define ARPHRD_VOID      0xFFFF        /* Void type, nothing is known */
 #define ARPHRD_NONE      0xFFFE        /* zero header length */
@@ -129,8 +133,7 @@ struct arpreq_old {
  *     This structure defines an ethernet arp header.
  */
 
-struct arphdr
-{
+struct arphdr {
        __be16          ar_hrd;         /* format of hardware address   */
        __be16          ar_pro;         /* format of protocol address   */
        unsigned char   ar_hln;         /* length of hardware address   */
@@ -156,6 +159,12 @@ static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
 {
        return (struct arphdr *)skb_network_header(skb);
 }
+
+static inline int arp_hdr_len(struct net_device *dev)
+{
+       /* ARP header, plus 2 device addresses, plus 2 IP addresses. */
+       return sizeof(struct arphdr) + (dev->addr_len + sizeof(u32)) * 2;
+}
 #endif
 
 #endif /* _LINUX_IF_ARP_H */