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mac80211: combine QoS with other BSS changes 

When associating and particularly when disassociating
there's no need to notify the driver about changes
with multiple calls to bss_info_changed, we should
combine the QoS enabling/disabling into the same call
as otherwise the driver could get confused about QoS
suddenly getting disabled while connected.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2012-03-02 15:56:59 +01:00 committed by John W. Linville
parent 293702a3fb
commit 3abead59fc
4 changed files with 17 additions and 9 deletions
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3
net/mac80211/ieee80211_i.h
View File

@ -1348,7 +1348,8 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
struct ieee80211_hdr *hdr, const u8 *tsc,
gfp_t gfp);
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
bool bss_notify);
void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,

2
net/mac80211/iface.c
View File

@ -304,7 +304,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
* need to initialise the hardware if the hardware
* doesn't start up with sane defaults
*/
ieee80211_set_wmm_default(sdata);
ieee80211_set_wmm_default(sdata, true);
}
set_bit(SDATA_STATE_RUNNING, &sdata->state);

12
net/mac80211/mlme.c
View File

@ -1277,7 +1277,6 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
/* enable WMM or activate new settings */
sdata->vif.bss_conf.qos = true;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
}
static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
@ -1455,8 +1454,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
ieee80211_set_wmm_default(sdata);
/* channel(_type) changes are handled by ieee80211_hw_config */
WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
@ -1484,10 +1481,16 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_ARP_FILTER;
}
sdata->vif.bss_conf.qos = false;
changed |= BSS_CHANGED_QOS;
/* The BSSID (not really interesting) and HT changed */
changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
ieee80211_bss_info_change_notify(sdata, changed);
/* disassociated - set to defaults now */
ieee80211_set_wmm_default(sdata, false);
del_timer_sync(&sdata->u.mgd.conn_mon_timer);
del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
del_timer_sync(&sdata->u.mgd.timer);
@ -2155,7 +2158,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
elems.wmm_param_len);
else
ieee80211_set_wmm_default(sdata);
ieee80211_set_wmm_default(sdata, false);
changed |= BSS_CHANGED_QOS;
if (elems.ht_info_elem && elems.wmm_param &&
(sdata->local->hw.queues >= 4) &&

9
net/mac80211/util.c
View File

@ -737,7 +737,8 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
ieee802_11_parse_elems_crc(start, len, elems, 0, 0);
}
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
bool bss_notify)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_queue_params qparam;
@ -807,7 +808,9 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
sdata->vif.bss_conf.qos =
sdata->vif.type != NL80211_IFTYPE_STATION;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
if (bss_notify)
ieee80211_bss_info_change_notify(sdata,
BSS_CHANGED_QOS);
}
}
@ -829,7 +832,7 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
ieee80211_set_wmm_default(sdata);
ieee80211_set_wmm_default(sdata, true);
}
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,