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wifi: iwlwifi: cancel session protection only if there is one

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mac80211 might (due to an unavoidable race) cancel a ROC that has already
expired. In that case the driver should not send the session protection
cmd to cancel the ROC.
When session protection is supported, the te_data::id field is reused
to save the configuration id. Check it before sending the cmd.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.30176bf869d9.Id811c20d3746b870cbe0c946bbfe1c0ab0a290cb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Miri Korenblit 2024-02-05 21:21:08 +02:00 committed by Johannes Berg
parent 35c1bbd93c
commit 7777018992
1 changed files with 12 additions and 4 deletions
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16
drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
View file

@ -1224,13 +1224,21 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
if (fw_has_capa(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
mvmvif = iwl_mvm_vif_from_mac80211(vif);
te_data = &mvmvif->time_event_data;
if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
if (te_data->id >= SESSION_PROTECT_CONF_MAX_ID) {
IWL_DEBUG_TE(mvm,
"No remain on channel event\n");
return;
}
if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
iwl_mvm_cancel_session_protection(mvm, vif,
mvmvif->time_event_data.id,
mvmvif->time_event_data.link_id);
else
te_data->id,
te_data->link_id);
} else {
iwl_mvm_roc_station_remove(mvm, mvmvif);
}
goto cleanup_roc;
}