From: Christian Lamparter <[email protected]> commit f880c2050f30b23c9b6f80028c09f76e693bf309 upstream.
Michael reported that p54* never really entered power save mode, even tough it was enabled. It turned out that upon a power save mode change the firmware will set a special flag onto the last outgoing frame tx status (which in this case is almost always the designated PSM nullfunc frame). This flag confused the driver; It erroneously reported transmission failures to the stack, which then generated the next nullfunc. and so on... Reported-by: Michael Buesch <[email protected]> Tested-by: Michael Buesch <[email protected]> Signed-off-by: Christian Lamparter <[email protected]> Signed-off-by: John W. Linville <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]> --- drivers/net/wireless/p54/txrx.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index 6605799..7398c98 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -445,7 +445,7 @@ static void p54_rx_frame_sent(struct p54_common *priv, struct sk_buff *skb) } if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && - (!payload->status)) + !(payload->status & P54_TX_FAILED)) info->flags |= IEEE80211_TX_STAT_ACK; if (payload->status & P54_TX_PSM_CANCELLED) info->flags |= IEEE80211_TX_STAT_TX_FILTERED; -- 1.7.3.3 _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
