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authorJosua Mayer <josua.mayer@jm0.eu>2019-07-06 17:54:48 +0200
committerMarcel Holtmann <marcel@holtmann.org>2019-07-06 21:33:55 +0200
commit688d94fd0d10d9ebe611a445d85811894f8cf6c4 (patch)
tree8d3f50f13e8f3e1bf42a7bdd3a210504fd46b67b
parent5636376c26502c39260853e529e9467f79f95931 (diff)
downloadlinux-688d94fd0d10d9ebe611a445d85811894f8cf6c4.tar.bz2
Bluetooth: 6lowpan: always check destination address
BLE based 6LoWPAN networks are highly constrained in bandwidth. Do not take a short-cut, always check if the destination address is known to belong to a peer. As a side-effect this also removes any behavioral differences between one, and two or more connected peers. Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Tested-by: Michael Scott <mike@foundries.io> Signed-off-by: Josua Mayer <josua.mayer@jm0.eu> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--net/bluetooth/6lowpan.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index f4e548e7b985..9d41de1ec90f 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -168,18 +168,6 @@ static inline struct lowpan_peer *peer_lookup_dst(struct lowpan_btle_dev *dev,
BT_DBG("peers %d addr %pI6c rt %p", count, daddr, rt);
- /* If we have multiple 6lowpan peers, then check where we should
- * send the packet. If only one peer exists, then we can send the
- * packet right away.
- */
- if (count == 1) {
- rcu_read_lock();
- peer = list_first_or_null_rcu(&dev->peers, struct lowpan_peer,
- list);
- rcu_read_unlock();
- return peer;
- }
-
if (!rt) {
if (ipv6_addr_any(&lowpan_cb(skb)->gw)) {
/* There is neither route nor gateway,