batman-adv: Distributed ARP Table - add compile option
This patch makes it possible to decide whether to include DAT within the
batman-adv binary or not.
It is extremely useful when the user wants to reduce the size of the resulting
module by cutting off any not needed feature.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 9ed1bb2..00d3093 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -28,6 +28,8 @@
(ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \
sizeof(struct batadv_bcast_packet)))
+#ifdef CONFIG_BATMAN_ADV_DAT
+
/* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
* BATADV_DAT_ADDR_MAX is changed as well.
*
@@ -35,6 +37,8 @@
*/
#define batadv_dat_addr_t uint16_t
+#endif /* CONFIG_BATMAN_ADV_DAT */
+
/**
* struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
* @ogm_buff: buffer holding the OGM packet
@@ -80,7 +84,9 @@
uint8_t orig[ETH_ALEN];
uint8_t primary_addr[ETH_ALEN];
struct batadv_neigh_node __rcu *router; /* rcu protected pointer */
+#ifdef CONFIG_BATMAN_ADV_DAT
batadv_dat_addr_t dat_addr;
+#endif
unsigned long *bcast_own;
uint8_t *bcast_own_sum;
unsigned long last_seen;
@@ -252,11 +258,13 @@
* @hash: hashtable representing the local ARP cache
* @work: work queue callback item for cache purging
*/
+#ifdef CONFIG_BATMAN_ADV_DAT
struct batadv_priv_dat {
batadv_dat_addr_t addr;
struct batadv_hashtable *hash;
struct delayed_work work;
};
+#endif
struct batadv_priv {
atomic_t mesh_state;
@@ -295,7 +303,9 @@
struct batadv_priv_gw gw;
struct batadv_priv_tt tt;
struct batadv_priv_vis vis;
+#ifdef CONFIG_BATMAN_ADV_DAT
struct batadv_priv_dat dat;
+#endif
};
struct batadv_socket_client {