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mwifiex: do not increase tx_pkts_queued if receive address tx paused 

If tx_pkts_queued is increased for tx paused receive address, tx process
will be triggered for this packet. But since RA list was tx paused,
there will be an infinite loop in mwifiex_wmm_process_tx waiting for the
event(tx pause, tdls cs) to cancel tx pause. This will be an dead loop,
since main_process was locked at this time, there will be no opportunity
to process event.

So do not increase tx_pkts_queued if receive address tx paused,
this will be restored RA list is unpaused.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Xinming Hu 2015-06-22 19:06:09 +05:30 committed by Kalle Valo
parent b5b0f272d6
commit 9186a1f37d
1 changed files with 4 additions and 1 deletions
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3
drivers/net/wireless/mwifiex/wmm.c
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@ -803,6 +803,9 @@ mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
atomic_set(&priv->wmm.highest_queued_prio, atomic_set(&priv->wmm.highest_queued_prio,
priv->tos_to_tid_inv[tid_down]); priv->tos_to_tid_inv[tid_down]);
if (ra_list->tx_paused)
priv->wmm.pkts_paused[tid_down]++;
else
atomic_inc(&priv->wmm.tx_pkts_queued); atomic_inc(&priv->wmm.tx_pkts_queued);
spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags); spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);