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Commit 9b1ea167 authored by Sara Sharon's avatar Sara Sharon Committed by Luca Coelho
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iwlwifi: mvm: allow block ack response without data 



When FW fails to get block ack, it will send the notification with
0 items in the TFD queue elements. Allow this and handle accordingly.

Fixes: c46e7724 ("iwlwifi: mvm: support new BA notification response")
Signed-off-by: default avatarSara Sharon <sara.sharon@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent f4d10479

drivers/net/wireless/intel/iwlwifi/mvm/tx.c

+4 −0
Original line number Diff line number Diff line
@@ -1785,6 +1785,9 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 
		ba_info.status.status_driver_data[0] =

			(void *)(uintptr_t)ba_res->reduced_txp;



		if (!le16_to_cpu(ba_res->tfd_cnt))

			goto out;



		/*

		 * TODO:

		 * When supporting multi TID aggregations - we need to move
@@ -1802,6 +1805,7 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 
				   le16_to_cpu(ba_res->tfd[0].tfd_index),

				   &ba_info, le32_to_cpu(ba_res->tx_rate));



out:

		IWL_DEBUG_TX_REPLY(mvm,

				   "BA_NOTIFICATION Received from sta_id = %d, flags %x, sent:%d, acked:%d\n",

				   sta_id, le32_to_cpu(ba_res->flags),