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authorJohannes Berg <johannes.berg@intel.com>2014-02-25 10:37:15 +0100
committerBen Hutchings <ben@decadent.org.uk>2014-04-02 00:58:56 +0100
commit7d1cce6a938cad067edbb4522b587df60afc4730 (patch)
treeb4eb1959143fa48316199beb78faf340b06752a8 /drivers
parent077f632633e0d19353b1140afcda3c6635202a32 (diff)
iwlwifi: fix TX status for aggregated packets
commit 143582c6847cb285b361804c613127c25de60ca4 upstream. Only the first packet is currently handled correctly, but then all others are assumed to have failed which is problematic. Fix this, marking them all successful instead (since if they're not then the firmware will have transmitted them as single frames.) This fixes the lost packet reporting. Also do a tiny variable scoping cleanup. Signed-off-by: Johannes Berg <johannes.berg@intel.com> [Add the dvm part] Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> [bwh: Backported to 3.2: - Drop the mvm part - Adjust filename, context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-tx.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index df1540ca6102..5fe46029cbfc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -854,8 +854,6 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
struct iwl_ht_agg *agg;
struct sk_buff_head reclaimed_skbs;
- struct ieee80211_tx_info *info;
- struct ieee80211_hdr *hdr;
struct sk_buff *skb;
unsigned long flags;
int sta_id;
@@ -941,24 +939,32 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
0, &reclaimed_skbs);
freed = 0;
while (!skb_queue_empty(&reclaimed_skbs)) {
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_tx_info *info;
skb = __skb_dequeue(&reclaimed_skbs);
- hdr = (struct ieee80211_hdr *)skb->data;
+ hdr = (void *)skb->data;
+ info = IEEE80211_SKB_CB(skb);
if (ieee80211_is_data_qos(hdr->frame_control))
freed++;
else
WARN_ON_ONCE(1);
- info = IEEE80211_SKB_CB(skb);
kmem_cache_free(priv->tx_cmd_pool, (info->driver_data[1]));
+ memset(&info->status, 0, sizeof(info->status));
+ /* Packet was transmitted successfully, failures come as single
+ * frames because before failing a frame the firmware transmits
+ * it without aggregation at least once.
+ */
+ info->flags |= IEEE80211_TX_STAT_ACK;
+
if (freed == 1) {
/* this is the first skb we deliver in this batch */
/* put the rate scaling data there */
info = IEEE80211_SKB_CB(skb);
memset(&info->status, 0, sizeof(info->status));
- info->flags |= IEEE80211_TX_STAT_ACK;
info->flags |= IEEE80211_TX_STAT_AMPDU;
info->status.ampdu_ack_len = ba_resp->txed_2_done;
info->status.ampdu_len = ba_resp->txed;