ath9k_hw: fix hardware queue allocation

commit ad8fdccf9c197a89e2d2fa78c453283dcc2c343f upstream.

The driver passes the desired hardware queue index for a WMM data queue
in qinfo->tqi_subtype. This was ignored in ath9k_hw_setuptxqueue, which
instead relied on the order in which the function is called.

Reported-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index bbcb777..167c7f6 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -311,14 +311,7 @@ int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type,
                q = ATH9K_NUM_TX_QUEUES - 3;
                break;
        case ATH9K_TX_QUEUE_DATA:
-               for (q = 0; q < ATH9K_NUM_TX_QUEUES; q++)
-                       if (ah->txq[q].tqi_type ==
-                           ATH9K_TX_QUEUE_INACTIVE)
-                               break;
-               if (q == ATH9K_NUM_TX_QUEUES) {
-                       ath_err(common, "No available TX queue\n");
-                       return -1;
-               }
+               q = qinfo->tqi_subtype;
                break;
        default:
                ath_err(common, "Invalid TX queue type: %u\n", type);