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iwlwifi: don't modify the timer if we don't Tx

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In fragmentation we don't update the write pointer of the
HW immediately. So we shouldn't modify the timer in that
case.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-06-10 18:25:09 +03:00 committed by Johannes Berg
parent f609607c00
commit 49a4fc20df
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/iwlwifi/pcie/trans.c
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@ -1354,7 +1354,8 @@ static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
skb->data + hdr_len, secondlen);
/* start timer if queue currently empty */
if (q->read_ptr == q->write_ptr && trans_pcie->wd_timeout)
if (txq->need_update && q->read_ptr == q->write_ptr &&
trans_pcie->wd_timeout)
mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout);
/* Tell device the write index *just past* this latest filled TFD */