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Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c27
1 files changed, 8 insertions, 19 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bd1224fd216a..64e0f7587e6d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1040,14 +1040,11 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
struct ieee80211_radiotap_iterator iterator;
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
- struct ieee80211_supported_band *sband;
bool hw_frag;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
NULL);
- sband = tx->local->hw.wiphy->bands[tx->channel->band];
-
info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
tx->flags &= ~IEEE80211_TX_FRAGMENTED;
@@ -1154,7 +1151,7 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,
* packet pass through because splicing the frames
* back is already done.
*/
- tid_tx = tx->sta->ampdu_mlme.tid_tx[tid];
+ tid_tx = rcu_dereference_protected_tid_tx(tx->sta, tid);
if (!tid_tx) {
/* do nothing, let packet pass through */
@@ -1446,11 +1443,8 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
struct ieee80211_tx_data tx;
ieee80211_tx_result res_prepare;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- u16 queue;
bool result = true;
- queue = skb_get_queue_mapping(skb);
-
if (unlikely(skb->len < 10)) {
dev_kfree_skb(skb);
return true;
@@ -1486,12 +1480,7 @@ static int ieee80211_skb_resize(struct ieee80211_local *local,
{
int tail_need = 0;
- /*
- * This could be optimised, devices that do full hardware
- * crypto (including TKIP MMIC) need no tailroom... But we
- * have no drivers for such devices currently.
- */
- if (may_encrypt) {
+ if (may_encrypt && local->crypto_tx_tailroom_needed_cnt) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
tail_need -= skb_tailroom(skb);
tail_need = max_t(int, tail_need, 0);
@@ -1766,6 +1755,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
ret = NETDEV_TX_OK;
goto fail;
}
+ rcu_read_lock();
if (!is_multicast_ether_addr(skb->data))
mppath = mpp_path_lookup(skb->data, sdata);
@@ -1780,13 +1770,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
!(mppath && compare_ether_addr(mppath->mpp, skb->data))) {
hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc,
skb->data, skb->data + ETH_ALEN);
+ rcu_read_unlock();
meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
sdata, NULL, NULL);
} else {
int is_mesh_mcast = 1;
const u8 *mesh_da;
- rcu_read_lock();
if (is_multicast_ether_addr(skb->data))
/* DA TA mSA AE:SA */
mesh_da = skb->data;
@@ -2266,7 +2256,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + 400 +
- sdata->u.mesh.vendor_ie_len);
+ sdata->u.mesh.ie_len);
if (!skb)
goto out;
@@ -2489,7 +2479,6 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
{
struct ieee80211_local *local = hw_to_local(hw);
struct sk_buff *skb = NULL;
- struct sta_info *sta;
struct ieee80211_tx_data tx;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_ap *bss = NULL;
@@ -2531,7 +2520,6 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
info = IEEE80211_SKB_CB(skb);
- sta = tx.sta;
tx.flags |= IEEE80211_TX_PS_BUFFERED;
tx.channel = local->hw.conf.channel;
info->band = tx.channel->band;
@@ -2551,8 +2539,9 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
skb_set_network_header(skb, 0);
skb_set_transport_header(skb, 0);
- /* send all internal mgmt frames on VO */
- skb_set_queue_mapping(skb, 0);
+ /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
+ skb_set_queue_mapping(skb, IEEE80211_AC_VO);
+ skb->priority = 7;
/*
* The other path calling ieee80211_xmit is from the tasklet,