[B.A.T.M.A.N.] [PATCH 2/4] batman: don't bother flipping ->tt_crc

Al Viro
2012-04-18T18:10:58Z

Again, keep ->tt_crc in batman_ogv_packet net-endian

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
net/batman-adv/bat_iv_ogm.c | 6 ++----
net/batman-adv/packet.h | 2 +-
2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index ab2085c..5aa8861 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -544,7 +544,6 @@ static void bat_iv_ogm_forward(struct orig_node *orig_node,
batman_ogm_packet->tq, batman_ogm_packet->header.ttl);

batman_ogm_packet->seqno = htonl(batman_ogm_packet->seqno);
- 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;
@@ -722,7 +721,7 @@ 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,
@@ -969,7 +968,7 @@ 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, 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);
@@ -1214,7 +1213,6 @@ static int bat_iv_ogm_receive(struct sk_buff *skb,
/* network to host order for our 32bit seqno and the
orig_interval */
batman_ogm_packet->seqno = ntohl(batman_ogm_packet->seqno);
- batman_ogm_packet->tt_crc = ntohs(batman_ogm_packet->tt_crc);

tt_buff = packet_buff + buff_pos + BATMAN_OGM_HLEN;

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 9157f7c..61a7fe0 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -132,7 +132,7 @@ 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)
--
1.7.2.5