diff options
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/378-mac80211-remove-iwlwifi-specific-workaround-that-bro.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/378-mac80211-remove-iwlwifi-specific-workaround-that-bro.patch b/package/kernel/mac80211/patches/subsys/378-mac80211-remove-iwlwifi-specific-workaround-that-bro.patch new file mode 100644 index 0000000000..a5ad377e6f --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/378-mac80211-remove-iwlwifi-specific-workaround-that-bro.patch @@ -0,0 +1,51 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Sat, 19 Jun 2021 12:10:14 +0200 +Subject: [PATCH] mac80211: remove iwlwifi specific workaround that broke sta + NDP tx + +Sending nulldata packets is important for sw AP link probing and detecting +4-address mode links. The checks that dropped these packets were apparently +added to work around an iwlwifi firmware bug with multi-TID aggregation. + +Fixes: 41cbb0f5a295 ("mac80211: add support for HE") +Cc: stable@vger.kernel.org +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c ++++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +@@ -1085,6 +1085,9 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv + if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA)) + return -1; + ++ if (unlikely(ieee80211_is_any_nullfunc(fc)) && sta->he_cap.has_he) ++ return -1; ++ + if (unlikely(ieee80211_is_probe_resp(fc))) + iwl_mvm_probe_resp_set_noa(mvm, skb); + +--- a/net/mac80211/mlme.c ++++ b/net/mac80211/mlme.c +@@ -1094,11 +1094,6 @@ void ieee80211_send_nullfunc(struct ieee + struct ieee80211_hdr_3addr *nullfunc; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + +- /* Don't send NDPs when STA is connected HE */ +- if (sdata->vif.type == NL80211_IFTYPE_STATION && +- !(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) +- return; +- + skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, + !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP)); + if (!skb) +@@ -1130,10 +1125,6 @@ static void ieee80211_send_4addr_nullfun + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) + return; + +- /* Don't send NDPs when connected HE */ +- if (!(sdata->u.mgd.flags & IEEE80211_STA_DISABLE_HE)) +- return; +- + skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); + if (!skb) + return; |