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authorDavid S. Miller <davem@davemloft.net>2012-08-24 15:15:04 -0400
committerDavid S. Miller <davem@davemloft.net>2012-08-24 15:15:10 -0400
commitd05cebb9153e500648befaa6f135e6976bbfbd84 (patch)
tree775debd33b800947197e4ae7dae38d5e4111b1c7 /net
parent7c4a56fec379ac0d7754e0d4da6a7361f1a4fe64 (diff)
parente72615f6abde92e961feee13e1078a1352cde4f7 (diff)
downloadlinux-d05cebb9153e500648befaa6f135e6976bbfbd84.tar.bz2
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says: ==================== This batch of fixes is intended for 3.6... Johannes Berg gives us a pair of iwlwifi fixes. One corrects some improperly defined ifdefs that lead to crashes and BUG_ONs. The other prevents attempts to read SRAM for devices that aren't actually started. Julia Lawall provides an ipw2100 fix to properly set the return code from a function call before testing it! :-) Thomas Huehn corrects the improper use of a constant related to a power setting in ath5k. Thomas Pedersen offers a mac80211 fix to properly handle destination addresses of unicast frames passing though a mesh gate. Vladimir Zapolskiy provides a brcmsmac fix to properly mark the interface state when the device goes down. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/tx.c38
1 files changed, 16 insertions, 22 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index acf712ffb5e6..c5e8c9c31f76 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1811,37 +1811,31 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
sdata, NULL, NULL);
} else {
- int is_mesh_mcast = 1;
- const u8 *mesh_da;
+ /* DS -> MBSS (802.11-2012 13.11.3.3).
+ * For unicast with unknown forwarding information,
+ * destination might be in the MBSS or if that fails
+ * forwarded to another mesh gate. In either case
+ * resolution will be handled in ieee80211_xmit(), so
+ * leave the original DA. This also works for mcast */
+ const u8 *mesh_da = skb->data;
+
+ if (mppath)
+ mesh_da = mppath->mpp;
+ else if (mpath)
+ mesh_da = mpath->dst;
+ rcu_read_unlock();
- if (is_multicast_ether_addr(skb->data))
- /* DA TA mSA AE:SA */
- mesh_da = skb->data;
- else {
- static const u8 bcast[ETH_ALEN] =
- { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- if (mppath) {
- /* RA TA mDA mSA AE:DA SA */
- mesh_da = mppath->mpp;
- is_mesh_mcast = 0;
- } else if (mpath) {
- mesh_da = mpath->dst;
- is_mesh_mcast = 0;
- } else {
- /* DA TA mSA AE:SA */
- mesh_da = bcast;
- }
- }
hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
mesh_da, sdata->vif.addr);
- rcu_read_unlock();
- if (is_mesh_mcast)
+ if (is_multicast_ether_addr(mesh_da))
+ /* DA TA mSA AE:SA */
meshhdrlen =
ieee80211_new_mesh_header(&mesh_hdr,
sdata,
skb->data + ETH_ALEN,
NULL);
else
+ /* RA TA mDA mSA AE:DA SA */
meshhdrlen =
ieee80211_new_mesh_header(&mesh_hdr,
sdata,