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mac80211: do not overwrite the sequence number if requested
Check if the Tx control flag is set to prevent sequence number overwrites, and if so, do not assign a new sequence number to the transmitted frame. Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@kuleuven.be> Link: https://lore.kernel.org/r/20200723100153.31631-3-Mathy.Vanhoef@kuleuven.be Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -825,6 +825,9 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
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if (ieee80211_is_qos_nullfunc(hdr->frame_control))
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return TX_CONTINUE;
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if (info->control.flags & IEEE80211_TX_CTRL_NO_SEQNO)
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return TX_CONTINUE;
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/*
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* Anything but QoS data that has a sequence number field
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* (is long enough) gets a sequence number from the global
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