2017-02-17 20:53:53

by Gucea Doru

[permalink] [raw]
Subject: [RFC-PATCH 1/2 v2] mac80211: Update the driver with beacon info constantly

From: Doru Gucea <[email protected]>

Once the mac80211 layer receives a beacon, it should send a notification
to the driver. This will allow finer timining control in case of drivers
that need a correct estimation for the arrival time of a beacon.

Changelog

v1:
* fixed typo

Signed-off-by: Doru Gucea <[email protected]>
---
net/mac80211/mlme.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2398693..f5ebe27 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3548,6 +3548,12 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.sync_dtim_count = 0;
}

+ /* trigger hardware timers adjustment
+ * this needs to be done before beacon filtering
+ */
+ changed |= BSS_CHANGED_BEACON_INFO;
+ ieee80211_bss_info_change_notify(sdata, changed);
+
if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
return;
ifmgd->beacon_crc = ncrc;
--
1.9.1