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rt2x00: rt2800pci: use rt2x00dev->tx->limit

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The TX data queue is initialized already when
the rt2800pci_txstatus_interrupt() function is
called.

Fetch the number of the queue entries from that
instead of using the entry_num field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->tx->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gabor Juhos 2013-05-01 17:17:31 +02:00 committed by John W. Linville
parent 98cd6c718c
commit 1cfcbe4cd4
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/rt2x00/rt2800pci.c
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@ -1014,7 +1014,7 @@ static void rt2800pci_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
* Since we have only one producer and one consumer we don't
* need to lock the kfifo.
*/
for (i = 0; i < rt2x00dev->ops->tx->entry_num; i++) {
for (i = 0; i < rt2x00dev->tx->limit; i++) {
rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))