diff options
| author | Vivek Natarajan <vnatarajan@atheros.com> | 2010-02-08 17:47:01 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-02-08 16:51:03 -0500 |
| commit | e15276a4b220c54db665cf46a92bd9ceb9aeb052 (patch) | |
| tree | 084ec601adeb65532f6c3a6b52cf1dc728065235 | |
| parent | 209c671db7a917740ab9873d442b10ae7e369937 (diff) | |
| download | kernel_samsung_crespo-e15276a4b220c54db665cf46a92bd9ceb9aeb052.zip kernel_samsung_crespo-e15276a4b220c54db665cf46a92bd9ceb9aeb052.tar.gz kernel_samsung_crespo-e15276a4b220c54db665cf46a92bd9ceb9aeb052.tar.bz2 | |
mac80211: Reset dynamic ps timer in Rx path.
The current mac80211 implementation enables power save if there
is no Tx traffic for a specific timeout. Hence, PS is triggered
even if there is a continuous Rx only traffic(like UDP) going on.
This makes the drivers to wait on the tim bit in the next beacon
to awake which leads to redundant sleep-wake cycles.
Fix this by restarting the dynamic ps timer on receiving every
data packet.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
CC: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/mac80211/rx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 01dba76..c9755f3 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1719,6 +1719,7 @@ static ieee80211_rx_result debug_noinline ieee80211_rx_h_data(struct ieee80211_rx_data *rx) { struct ieee80211_sub_if_data *sdata = rx->sdata; + struct ieee80211_local *local = rx->local; struct net_device *dev = sdata->dev; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; __le16 fc = hdr->frame_control; @@ -1750,6 +1751,13 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) dev->stats.rx_packets++; dev->stats.rx_bytes += rx->skb->len; + if (ieee80211_is_data(hdr->frame_control) && + !is_multicast_ether_addr(hdr->addr1) && + local->hw.conf.dynamic_ps_timeout > 0 && local->ps_sdata) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); + } + ieee80211_deliver_skb(rx); return RX_QUEUED; |