mwl8k: minor transmit quiescing rework
Minor changes to the transmit quiescing logic:
- Clarify the locking rules for ->tx_wait: only the holder of fw_mutex
can wait for the TX path to become idle, but tx_wait itself is read
and cleared by the TX reclaim tasklet under tx_lock.
- Inline mwl8k_txq_busy() in its callers.
- There's no need to kick the transmitter again in
mwl8k_tx_wait_empty(), since it will have been kicked when the
packets currently in the TX ring were added to it.
- If the TX ring didn't drain in time, run mwl8k_scan_tx_ring() after
reading priv->pending_pkts without dropping tx_lock in between.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1 file changed