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iwlwifi: mvm: don't send fetch the TID from a non-QoS packet in TSO

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Getting the TID of a packet before we know it is a QoS data
packet isn't a good idea. Delay the TID retrieval until
we know the packet is a QoS data packet.

Fixes: bb81bb68f4 ("iwlwifi: mvm: add Tx A-MSDU inside A-MPDU")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Emmanuel Grumbach
2017-06-20 16:05:30 +03:00
committed by Luca Coelho
parent 32026e8f70
commit 4f555e602b
1 changed files with 5 additions and 5 deletions
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10
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
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@@ -715,11 +715,6 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
snap_ip_tcp = 8 + skb_transport_header(skb) - skb_network_header(skb) +
tcp_hdrlen(skb);
qc = ieee80211_get_qos_ctl(hdr);
tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
return -EINVAL;
dbg_max_amsdu_len = ACCESS_ONCE(mvm->max_amsdu_len);
if (!sta->max_amsdu_len ||
@@ -730,6 +725,11 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
goto segment;
}
qc = ieee80211_get_qos_ctl(hdr);
tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
return -EINVAL;
/*
* Do not build AMSDU for IPv6 with extension headers.
* ask stack to segment and checkum the generated MPDUs for us.