From 9c0ab712c7e40b61063431cae74a3e763535a4e7 Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Mon, 21 Jul 2008 19:06:02 +0200 Subject: [PATCH] rt2x00: Clear queue entry flags during initialization When the queues are being initialized the entry flags fields must be reset to 0. When this does not happen some entries might still be marked as "occupied" after an ifdown & ifup cycle which would trigger errors when the entry is being accessed: phy0 -> rt2x00queue_write_tx_frame: Error - Arrived at non-free entry in the non-full queue 0. Please file bug report to http://rt2x00.serialmonkey.com. This also fixes the mac80211 warning: ------------[ cut here ]------------ WARNING: at net/mac80211/tx.c:1238 ieee80211_master_start_xmit+0x30a/0x350 [mac80211]() which was triggered by the queue error. Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00queue.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 7b581a370fde..3b27f6aa860c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -492,9 +492,12 @@ void rt2x00queue_init_rx(struct rt2x00_dev *rt2x00dev) if (!rt2x00dev->ops->lib->init_rxentry) return; - for (i = 0; i < queue->limit; i++) + for (i = 0; i < queue->limit; i++) { + queue->entries[i].flags = 0; + rt2x00dev->ops->lib->init_rxentry(rt2x00dev, &queue->entries[i]); + } } void rt2x00queue_init_tx(struct rt2x00_dev *rt2x00dev) @@ -508,9 +511,12 @@ void rt2x00queue_init_tx(struct rt2x00_dev *rt2x00dev) if (!rt2x00dev->ops->lib->init_txentry) continue; - for (i = 0; i < queue->limit; i++) + for (i = 0; i < queue->limit; i++) { + queue->entries[i].flags = 0; + rt2x00dev->ops->lib->init_txentry(rt2x00dev, &queue->entries[i]); + } } }