From: Sara Sharon Date: Thu, 19 Jul 2018 06:15:11 +0000 (+0300) Subject: iwlwifi: pcie: don't reset TXQ write pointer X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f09450e32adeb4f1a878b23275571a532ab9d99e;p=linux.git 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: 310181ec34e2 ("iwlwifi: move to TVQM mode") Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c index e880f69eac269..0c5f11d2c5da4 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c @@ -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 */ txq->read_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_free_resp(hcmd);