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authorSara Sharon <sara.sharon@intel.com>2018-07-19 09:15:11 +0300
committerLuca Coelho <luciano.coelho@intel.com>2018-11-11 11:06:18 +0200
commitf09450e32adeb4f1a878b23275571a532ab9d99e (patch)
treee74a3eaba12e40032dd6b56a3b169fc6c588ddb9 /drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
parentiwlwifi: mvm: toggle tx antenna if tx fails during connection establishment (diff)
downloadlinux-f09450e32adeb4f1a878b23275571a532ab9d99e.tar.xz
linux-f09450e32adeb4f1a878b23275571a532ab9d99e.zip
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 <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index e880f69eac26..0c5f11d2c5da 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);