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Diffstat (limited to 'net/mac80211/tdls.c')
-rw-r--r--net/mac80211/tdls.c88
1 files changed, 36 insertions, 52 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index a4af3b7675..05a7dff69f 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -21,7 +21,7 @@
/* give usermode some time for retries in setting up the TDLS session */
#define TDLS_PEER_SETUP_TIMEOUT (15 * HZ)
-void ieee80211_tdls_peer_del_work(struct work_struct *wk)
+void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_local *local;
@@ -30,13 +30,13 @@ void ieee80211_tdls_peer_del_work(struct work_struct *wk)
u.mgd.tdls_peer_del_work.work);
local = sdata->local;
- mutex_lock(&local->mtx);
+ lockdep_assert_wiphy(local->hw.wiphy);
+
if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer)) {
tdls_dbg(sdata, "TDLS del peer %pM\n", sdata->u.mgd.tdls_peer);
sta_info_destroy_addr(sdata, sdata->u.mgd.tdls_peer);
eth_zero_addr(sdata->u.mgd.tdls_peer);
}
- mutex_unlock(&local->mtx);
}
static void ieee80211_tdls_add_ext_capab(struct ieee80211_link_data *link,
@@ -309,7 +309,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta)
{
/* IEEE802.11ac-2013 Table E-4 */
- u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 };
+ static const u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 };
struct cfg80211_chan_def uc = sta->tdls_chandef;
enum nl80211_chan_width max_width =
ieee80211_sta_cap_chan_bw(&sta->deflink);
@@ -1180,7 +1180,7 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev,
return -ENOTSUPP;
}
- mutex_lock(&local->mtx);
+ lockdep_assert_wiphy(local->hw.wiphy);
/* we don't support concurrent TDLS peer setups */
if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer) &&
@@ -1208,7 +1208,6 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev,
ieee80211_flush_queues(local, sdata, false);
memcpy(sdata->u.mgd.tdls_peer, peer, ETH_ALEN);
- mutex_unlock(&local->mtx);
/* we cannot take the mutex while preparing the setup packet */
ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer,
@@ -1218,19 +1217,16 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev,
extra_ies, extra_ies_len, 0,
NULL);
if (ret < 0) {
- mutex_lock(&local->mtx);
eth_zero_addr(sdata->u.mgd.tdls_peer);
- mutex_unlock(&local->mtx);
return ret;
}
- ieee80211_queue_delayed_work(&sdata->local->hw,
- &sdata->u.mgd.tdls_peer_del_work,
- TDLS_PEER_SETUP_TIMEOUT);
+ wiphy_delayed_work_queue(sdata->local->hw.wiphy,
+ &sdata->u.mgd.tdls_peer_del_work,
+ TDLS_PEER_SETUP_TIMEOUT);
return 0;
out_unlock:
- mutex_unlock(&local->mtx);
return ret;
}
@@ -1322,7 +1318,7 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
* response frame. It is transmitted directly and not buffered
* by the AP.
*/
- drv_mgd_protect_tdls_discover(sdata->local, sdata);
+ drv_mgd_protect_tdls_discover(sdata->local, sdata, link_id);
fallthrough;
case WLAN_TDLS_SETUP_CONFIRM:
case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
@@ -1354,9 +1350,10 @@ static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata,
enum nl80211_chan_width width;
struct ieee80211_supported_band *sband;
- mutex_lock(&local->chanctx_mtx);
+ lockdep_assert_wiphy(local->hw.wiphy);
+
conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
- lockdep_is_held(&local->chanctx_mtx));
+ lockdep_is_held(&local->hw.wiphy->mtx));
if (conf) {
width = conf->def.width;
sband = local->hw.wiphy->bands[conf->def.chan->band];
@@ -1384,7 +1381,6 @@ static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata,
}
}
- mutex_unlock(&local->chanctx_mtx);
}
static int iee80211_tdls_have_ht_peers(struct ieee80211_sub_if_data *sdata)
@@ -1447,6 +1443,8 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_local *local = sdata->local;
int ret;
+ lockdep_assert_wiphy(local->hw.wiphy);
+
if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
return -ENOTSUPP;
@@ -1467,35 +1465,26 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
/* protect possible bss_conf changes and avoid concurrency in
* ieee80211_bss_info_change_notify()
*/
- sdata_lock(sdata);
- mutex_lock(&local->mtx);
tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
switch (oper) {
case NL80211_TDLS_ENABLE_LINK:
if (sdata->vif.bss_conf.csa_active) {
tdls_dbg(sdata, "TDLS: disallow link during CSA\n");
- ret = -EBUSY;
- break;
+ return -EBUSY;
}
- mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, peer);
- if (!sta) {
- mutex_unlock(&local->sta_mtx);
- ret = -ENOLINK;
- break;
- }
+ if (!sta)
+ return -ENOLINK;
iee80211_tdls_recalc_chanctx(sdata, sta);
iee80211_tdls_recalc_ht_protection(sdata, sta);
set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
- mutex_unlock(&local->sta_mtx);
WARN_ON_ONCE(is_zero_ether_addr(sdata->u.mgd.tdls_peer) ||
!ether_addr_equal(sdata->u.mgd.tdls_peer, peer));
- ret = 0;
break;
case NL80211_TDLS_DISABLE_LINK:
/*
@@ -1514,29 +1503,26 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
ret = sta_info_destroy_addr(sdata, peer);
- mutex_lock(&local->sta_mtx);
iee80211_tdls_recalc_ht_protection(sdata, NULL);
- mutex_unlock(&local->sta_mtx);
iee80211_tdls_recalc_chanctx(sdata, NULL);
+ if (ret)
+ return ret;
break;
default:
- ret = -ENOTSUPP;
- break;
+ return -ENOTSUPP;
}
- if (ret == 0 && ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) {
- cancel_delayed_work(&sdata->u.mgd.tdls_peer_del_work);
+ if (ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) {
+ wiphy_delayed_work_cancel(sdata->local->hw.wiphy,
+ &sdata->u.mgd.tdls_peer_del_work);
eth_zero_addr(sdata->u.mgd.tdls_peer);
}
- if (ret == 0)
- wiphy_work_queue(sdata->local->hw.wiphy,
- &sdata->deflink.u.mgd.request_smps_work);
+ wiphy_work_queue(sdata->local->hw.wiphy,
+ &sdata->deflink.u.mgd.request_smps_work);
- mutex_unlock(&local->mtx);
- sdata_unlock(sdata);
- return ret;
+ return 0;
}
void ieee80211_tdls_oper_request(struct ieee80211_vif *vif, const u8 *peer,
@@ -1669,11 +1655,12 @@ ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
u32 ch_sw_tm_ie;
int ret;
+ lockdep_assert_wiphy(local->hw.wiphy);
+
if (chandef->chan->freq_offset)
/* this may work, but is untested */
return -EOPNOTSUPP;
- mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, addr);
if (!sta) {
tdls_dbg(sdata,
@@ -1703,7 +1690,6 @@ ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
set_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL);
out:
- mutex_unlock(&local->sta_mtx);
dev_kfree_skb_any(skb);
return ret;
}
@@ -1717,26 +1703,24 @@ ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- mutex_lock(&local->sta_mtx);
+ lockdep_assert_wiphy(local->hw.wiphy);
+
sta = sta_info_get(sdata, addr);
if (!sta) {
tdls_dbg(sdata,
"Invalid TDLS peer %pM for channel switch cancel\n",
addr);
- goto out;
+ return;
}
if (!test_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL)) {
tdls_dbg(sdata, "TDLS channel switch not initiated by %pM\n",
addr);
- goto out;
+ return;
}
drv_tdls_cancel_channel_switch(local, sdata, &sta->sta);
clear_sta_flag(sta, WLAN_STA_TDLS_OFF_CHANNEL);
-
-out:
- mutex_unlock(&local->sta_mtx);
}
static struct sk_buff *
@@ -1798,6 +1782,8 @@ ieee80211_process_tdls_channel_switch_resp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_tdls_ch_sw_params params = {};
int ret;
+ lockdep_assert_wiphy(local->hw.wiphy);
+
params.action_code = WLAN_TDLS_CHANNEL_SWITCH_RESPONSE;
params.timestamp = rx_status->device_timestamp;
@@ -1807,7 +1793,6 @@ ieee80211_process_tdls_channel_switch_resp(struct ieee80211_sub_if_data *sdata,
return -EINVAL;
}
- mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, tf->sa);
if (!sta || !test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) {
tdls_dbg(sdata, "TDLS chan switch from non-peer sta %pM\n",
@@ -1870,7 +1855,6 @@ call_drv:
tf->sa, params.status);
out:
- mutex_unlock(&local->sta_mtx);
dev_kfree_skb_any(params.tmpl_skb);
kfree(elems);
return ret;
@@ -1896,6 +1880,8 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_tdls_ch_sw_params params = {};
int ret = 0;
+ lockdep_assert_wiphy(local->hw.wiphy);
+
params.action_code = WLAN_TDLS_CHANNEL_SWITCH_REQUEST;
params.timestamp = rx_status->device_timestamp;
@@ -1984,7 +1970,6 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
goto free;
}
- mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, tf->sa);
if (!sta || !test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH)) {
tdls_dbg(sdata, "TDLS chan switch from non-peer sta %pM\n",
@@ -2031,7 +2016,6 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
tf->sa, params.chandef->chan->center_freq,
params.chandef->width);
out:
- mutex_unlock(&local->sta_mtx);
dev_kfree_skb_any(params.tmpl_skb);
free:
kfree(elems);