iwlwifi: don't WARN when a non empty queue is disabled
This can happen when we shut down suddenly an interface.
Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 105e3af..79a4ddc 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -480,20 +480,12 @@
void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
- u16 rd_ptr, wr_ptr;
- int n_bd = trans_pcie->txq[txq_id].q.n_bd;
if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) {
WARN_ONCE(1, "queue %d not used", txq_id);
return;
}
- rd_ptr = iwl_read_prph(trans, SCD_QUEUE_RDPTR(txq_id)) & (n_bd - 1);
- wr_ptr = iwl_read_prph(trans, SCD_QUEUE_WRPTR(txq_id));
-
- WARN_ONCE(rd_ptr != wr_ptr, "queue %d isn't empty: [%d,%d]",
- txq_id, rd_ptr, wr_ptr);
-
iwl_txq_set_inactive(trans, txq_id);
IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
}