From: Sara Sharon Date: Sun, 6 Mar 2016 13:08:55 +0000 (+0200) Subject: iwlwifi: mvm: allow same PN for de-aggregated AMSDU X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f1ae02b186d9b37ee621c7e922ecf5db96f5fb5c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git iwlwifi: mvm: allow same PN for de-aggregated AMSDU The 9000 hardware will de-aggregate AMSDUs. In the process it will copy the mac header "as is" to the new MPDUs. This means driver should allow the same PN for MPDUs originated from the same AMSDU. Do that by incrementing the PN only for the last MPDU in the sequence. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index df6c32caa5f0..08d8a8abb918 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -132,7 +132,8 @@ static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb, IEEE80211_CCMP_PN_LEN) <= 0) return -1; - memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN); + if (!(stats->flag & RX_FLAG_AMSDU_MORE)) + memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN); stats->flag |= RX_FLAG_PN_VALIDATED; return 0; @@ -883,6 +884,9 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, u8 *qc = ieee80211_get_qos_ctl(hdr); *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; + if (!(desc->amsdu_info & + IWL_RX_MPDU_AMSDU_LAST_SUBFRAME)) + rx_status->flag |= RX_FLAG_AMSDU_MORE; } if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) iwl_mvm_agg_rx_received(mvm, baid);