From: Emmanuel Grumbach emmanuel.grumbach@intel.com
[ Upstream commit 4f555e602b42826b3d79081c9ef8b8e8fe29fc49 ]
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: bb81bb68f472 ("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 Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 7465d4db136f..790952e48262 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -652,11 +652,6 @@ 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 || @@ -667,6 +662,11 @@ 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.