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rt2x00: do not pause queue on flush

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Pausing queue on flush make no sense since txdone procedure un-pause
queue. Before flush procedure we have to assure queue is stopped,
i.e. on receive path h/w RX is disabled, on transmit path queue is
disabled in mac80211. That conditions are true except one function:
rt2x00usb_watchdog_tx_dma(), so add stop/start queue there.

Note stop/start queue can be racy if we do this from multiple paths,
but currently we stop TX queues only on rt2x00lib_disable_radio(),
which also stop/sync watchdog, hance we have no race condition.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka
2013-10-05 18:15:33 +02:00
committed by John W. Linville
parent 733aec6a5b
commit fdbdd25c47
2 changed files with 8 additions and 31 deletions
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2
drivers/net/wireless/rt2x00/rt2x00usb.c
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@@ -523,7 +523,9 @@ static void rt2x00usb_watchdog_tx_dma(struct data_queue *queue)
rt2x00_warn(queue->rt2x00dev, "TX queue %d DMA timed out, invoke forced forced reset\n",
queue->qid);
rt2x00queue_stop_queue(queue);
rt2x00queue_flush_queue(queue, true);
rt2x00queue_start_queue(queue);
}
static int rt2x00usb_dma_timeout(struct data_queue *queue)