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authorIlan Peer <ilan.peer@intel.com>2020-01-31 14:12:56 +0300
committerJohannes Berg <johannes.berg@intel.com>2020-02-07 14:48:29 +0300
commit52b4810bed836929d73e1ff419a8d3f1eb1b4c4b (patch)
tree8ce4b3f549c836c45d72854cd561bb292003153d /net/mac80211/cfg.c
parentc4d800dcc7c57837cca66638b54b1d8a09949f79 (diff)
downloadlinux-52b4810bed836929d73e1ff419a8d3f1eb1b4c4b.tar.xz
mac80211: Remove support for changing AP SMPS mode
The SMPS feature is defined in the specification only to be used by non-AP stations and not by APs, so remove the support for changing the AP's SMPS mode dynamically. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-20-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r--net/mac80211/cfg.c101
1 files changed, 4 insertions, 97 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a11bd1669c13..eb7a84150817 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -990,20 +990,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
if (old)
return -EALREADY;
- switch (params->smps_mode) {
- case NL80211_SMPS_OFF:
- sdata->smps_mode = IEEE80211_SMPS_OFF;
- break;
- case NL80211_SMPS_STATIC:
- sdata->smps_mode = IEEE80211_SMPS_STATIC;
- break;
- case NL80211_SMPS_DYNAMIC:
- sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
- break;
- default:
- return -EINVAL;
- }
- sdata->u.ap.req_smps = sdata->smps_mode;
+ if (params->smps_mode != NL80211_SMPS_OFF)
+ return -ENOTSUPP;
+
+ sdata->smps_mode = IEEE80211_SMPS_OFF;
sdata->needed_rx_chains = sdata->local->rx_chains;
@@ -1169,7 +1159,6 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
kfree_rcu(old_beacon, rcu_head);
if (old_probe_resp)
kfree_rcu(old_probe_resp, rcu_head);
- sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
kfree(sdata->vif.bss_conf.ftmr_params);
sdata->vif.bss_conf.ftmr_params = NULL;
@@ -1694,20 +1683,6 @@ static int ieee80211_change_station(struct wiphy *wiphy,
mutex_unlock(&local->sta_mtx);
- if ((sdata->vif.type == NL80211_IFTYPE_AP ||
- sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
- sta->known_smps_mode != sta->sdata->bss->req_smps &&
- test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
- sta_info_tx_streams(sta) != 1) {
- ht_dbg(sta->sdata,
- "%pM just authorized and MIMO capable - update SMPS\n",
- sta->sta.addr);
- ieee80211_send_smps_action(sta->sdata,
- sta->sdata->bss->req_smps,
- sta->sta.addr,
- sta->sdata->vif.bss_conf.bssid);
- }
-
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
ieee80211_recalc_ps(local);
@@ -2639,74 +2614,6 @@ static int ieee80211_testmode_dump(struct wiphy *wiphy,
}
#endif
-int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
- enum ieee80211_smps_mode smps_mode)
-{
- struct sta_info *sta;
- enum ieee80211_smps_mode old_req;
-
- if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
- return -EINVAL;
-
- if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
- return 0;
-
- old_req = sdata->u.ap.req_smps;
- sdata->u.ap.req_smps = smps_mode;
-
- /* AUTOMATIC doesn't mean much for AP - don't allow it */
- if (old_req == smps_mode ||
- smps_mode == IEEE80211_SMPS_AUTOMATIC)
- return 0;
-
- ht_dbg(sdata,
- "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
- smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
-
- mutex_lock(&sdata->local->sta_mtx);
- list_for_each_entry(sta, &sdata->local->sta_list, list) {
- /*
- * Only stations associated to our AP and
- * associated VLANs
- */
- if (sta->sdata->bss != &sdata->u.ap)
- continue;
-
- /* This station doesn't support MIMO - skip it */
- if (sta_info_tx_streams(sta) == 1)
- continue;
-
- /*
- * Don't wake up a STA just to send the action frame
- * unless we are getting more restrictive.
- */
- if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
- !ieee80211_smps_is_restrictive(sta->known_smps_mode,
- smps_mode)) {
- ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
- sta->sta.addr);
- continue;
- }
-
- /*
- * If the STA is not authorized, wait until it gets
- * authorized and the action frame will be sent then.
- */
- if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
- continue;
-
- ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
- ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
- sdata->vif.bss_conf.bssid);
- }
- mutex_unlock(&sdata->local->sta_mtx);
-
- sdata->smps_mode = smps_mode;
- ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
-
- return 0;
-}
-
int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode)
{