From: Christian Lamparter Date: Thu, 20 Aug 2009 18:22:01 +0000 (+0200) Subject: p54: fix broadcast buffering in AP mode X-Git-Tag: firefly_0821_release~12983^2~275^2~95 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=90d6f92828a081a86cb4f9644b6eef6207855050;p=firefly-linux-kernel-4.4.55.git p54: fix broadcast buffering in AP mode The patch "mac80211: fix PS-poll response race" somehow broke broadcast buffering in a funny way. During normal operation - stations are awake - the firmware refused to transmit broadcast frames and reported P54_TX_PSM_CANCELLED. But everything worked as soon as one station entered PSM. The reason: The stack sets IEEE80211_TX_CTL_SEND_AFTER_DTIM for outgoing broadcast frames as soon as a station is marked as sleeping. This flag triggers a path which will reroute these frames into p54's "content after beacon" queue, which is designed to cope with the demands for psm. This patch restores the old behavior. IEEE80211_TX_CTL_CLEAR_PS_FILT will once again be used to signalize the firmware to ignore the ps canceling for certain frames. Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index 6fc0b6148c8a..b6dda2b27fb5 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -623,6 +623,9 @@ static void p54_tx_80211_header(struct p54_common *priv, struct sk_buff *skb, if (info->flags & IEEE80211_TX_CTL_PSPOLL_RESPONSE) *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL; + if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) + *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL; + *queue = skb_get_queue_mapping(skb) + P54_QUEUE_DATA; switch (priv->mode) {