diff options
| author | Christian Lamparter <chunkeey@web.de> | 2009-04-18 21:39:15 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-04-23 00:57:16 +0400 |
| commit | fef99929cd6b409a67a35e41f7c177bade5bca34 (patch) | |
| tree | 9dafe774df9920c9349c721fd33894e3ac0f62ed /net | |
| parent | d577e7cdb1be027bc51ee1030bc7fd647ea6d0da (diff) | |
| download | linux-fef99929cd6b409a67a35e41f7c177bade5bca34.tar.xz | |
mac80211: set CLEAR_PS for pspolled frames
This patch sets IEEE80211_TX_CTL_CLEAR_PS_FILT for outgoing
frames for a half-wake station.
this is necessary if one wants to get ps-poll working properly with a p54 ap.
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/tx.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 3fb04a86444d..f336cc731df6 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -409,8 +409,24 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) sta->sta.addr); } #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - clear_sta_flags(sta, WLAN_STA_PSPOLL); + if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) { + /* + * The sleeping station with pending data is now snoozing. + * It queried us for its buffered frames and will go back + * to deep sleep once it got everything. + * + * inform the driver, in case the hardware does powersave + * frame filtering and keeps a station blacklist on its own + * (e.g: p54), so that frames can be delivered unimpeded. + * + * Note: It should be save to disable the filter now. + * As, it is really unlikely that we still have any pending + * frame for this station in the hw's buffers/fifos left, + * that is not rejected with a unsuccessful tx_status yet. + */ + info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; + } return TX_CONTINUE; } |