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Commit f09450e3 authored by Sara Sharon's avatar Sara Sharon Committed by Luca Coelho
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iwlwifi: pcie: don't reset TXQ write pointer 



Currently code sets the write pointer when getting the TX queue
allocate response. This causes a redundant interrupt with any actual
change in the pointer. Remove this write altogether.

Fixes: 310181ec ("iwlwifi: move to TVQM mode")
Signed-off-by: default avatarSara Sharon <sara.sharon@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 0dde2440

drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c

+1 −2
Original line number Original line Diff line number Diff line
@@ -1228,8 +1228,7 @@ int iwl_trans_pcie_txq_alloc_response(struct iwl_trans *trans, 
	/* Place first TFD at index corresponding to start sequence number */

	/* Place first TFD at index corresponding to start sequence number */

	txq->read_ptr = wr_ptr;

	txq->read_ptr = wr_ptr;

	txq->write_ptr = wr_ptr;

	txq->write_ptr = wr_ptr;

	iwl_write_direct32(trans, HBUS_TARG_WRPTR,



			   (txq->write_ptr) | (qid << 16));

	IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d\n", qid);

	IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d\n", qid);





	iwl_free_resp(hcmd);

	iwl_free_resp(hcmd);