batman-adv: don't bother flipping ->tt_crc

Keep it net-endian

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sven Eckelmann <sven@narfation.org>

2 files changed, 3 insertions, 9 deletions

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 896287e62df9..ec3542c3bf0c 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -547,8 +547,6 @@ static void bat_iv_ogm_forward(struct orig_node *orig_node,
                 "Forwarding packet: tq: %i, ttl: %i\n",
                 batman_ogm_packet->tq, batman_ogm_packet->header.ttl);
 
-        batman_ogm_packet->tt_crc = htons(batman_ogm_packet->tt_crc);
-
         /* switch of primaries first hop flag when forwarding */
         batman_ogm_packet->flags &= ~PRIMARIES_FIRST_HOP;
         if (is_single_hop_neigh)
@@ -724,7 +722,7 @@ update_tt:
                 tt_update_orig(bat_priv, orig_node, tt_buff,
                                batman_ogm_packet->tt_num_changes,
                                batman_ogm_packet->ttvn,
-                               batman_ogm_packet->tt_crc);
+                               ntohs(batman_ogm_packet->tt_crc));
 
         if (orig_node->gw_flags != batman_ogm_packet->gw_flags)
                 gw_node_update(bat_priv, orig_node,
@@ -972,7 +970,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr,
                 ethhdr->h_source, if_incoming->net_dev->name,
                 if_incoming->net_dev->dev_addr, batman_ogm_packet->orig,
                 batman_ogm_packet->prev_sender, ntohl(batman_ogm_packet->seqno),
-                batman_ogm_packet->ttvn, batman_ogm_packet->tt_crc,
+                batman_ogm_packet->ttvn, ntohs(batman_ogm_packet->tt_crc),
                 batman_ogm_packet->tt_num_changes, batman_ogm_packet->tq,
                 batman_ogm_packet->header.ttl,
                 batman_ogm_packet->header.version, has_directlink_flag);
@@ -1219,10 +1217,6 @@ static int bat_iv_ogm_receive(struct sk_buff *skb,
 
         /* unpack the aggregated packets and process them one by one */
         do {
-                /* network to host order for our 32bit seqno and the
-                   orig_interval */
-                batman_ogm_packet->tt_crc = ntohs(batman_ogm_packet->tt_crc);
-
                 tt_buff = packet_buff + buff_pos + BATMAN_OGM_HLEN;
 
                 bat_iv_ogm_process(ethhdr, batman_ogm_packet,
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 372fc889832a..033d99490e82 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -124,7 +124,7 @@ struct batman_ogm_packet {
         uint8_t  tq;
         uint8_t  tt_num_changes;
         uint8_t  ttvn; /* translation table version number */
-        uint16_t tt_crc;
+        __be16   tt_crc;
 } __packed;
 
 #define BATMAN_OGM_HLEN sizeof(struct batman_ogm_packet)