From: Johannes Berg <johannes.berg@xxxxxxxxx>
When the AC parameters change, drivers might rely
on getting a bss_info_changed notification with
BSS_CHANGED_QOS in addition to the conf_tx call.
Always call the function when userspace updates
are made (in AP/GO modes) and also set the change
flag when updates were made by the AP (in managed
mode.)
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/cfg.c | 2 ++
net/mac80211/mlme.c | 28 ++++++++++++++--------------
2 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ccbe241..6a171e2 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1741,6 +1741,8 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
return -EINVAL;
}
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
+
return 0;
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index d563f7c..6eab633 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1108,7 +1108,7 @@ void ieee80211_dynamic_ps_timer(unsigned long data)
}
/* MLME */
-static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
+static bool ieee80211_sta_wmm_params(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
u8 *wmm_param, size_t wmm_param_len)
{
@@ -1119,23 +1119,23 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
u8 *pos, uapsd_queues = 0;
if (!local->ops->conf_tx)
- return;
+ return false;
if (local->hw.queues < IEEE80211_NUM_ACS)
- return;
+ return false;
if (!wmm_param)
- return;
+ return false;
if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
- return;
+ return false;
if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
uapsd_queues = ifmgd->uapsd_queues;
count = wmm_param[6] & 0x0f;
if (count == ifmgd->wmm_last_param_set)
- return;
+ return false;
ifmgd->wmm_last_param_set = count;
pos = wmm_param + 8;
@@ -1202,6 +1202,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
/* enable WMM or activate new settings */
sdata->vif.bss_conf.qos = true;
+ return true;
}
static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata)
@@ -2438,14 +2439,6 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
ifmgd->aid);
- if (ncrc != ifmgd->beacon_crc || !ifmgd->beacon_crc_valid) {
- ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems,
- true);
-
- ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
- elems.wmm_param_len);
- }
-
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
if (directed_tim) {
if (local->hw.conf.dynamic_ps_timeout > 0) {
@@ -2476,6 +2469,13 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
ifmgd->beacon_crc = ncrc;
ifmgd->beacon_crc_valid = true;
+ ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems,
+ true);
+
+ if (ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
+ elems.wmm_param_len))
+ changed |= BSS_CHANGED_QOS;
+
if (elems.erp_info && elems.erp_info_len >= 1) {
erp_valid = true;
erp_value = elems.erp_info[0];
--
1.7.10.4
--
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