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-rw-r--r--net/mac80211/main.c68
1 files changed, 41 insertions, 27 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 4548f8445..033a5261a 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -84,7 +84,8 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
local->filter_flags = new_flags & ~(1<<31);
}
-static void ieee80211_reconfig_filter(struct work_struct *work)
+static void ieee80211_reconfig_filter(struct wiphy *wiphy,
+ struct wiphy_work *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, reconfig_filter);
@@ -206,7 +207,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
BSS_CHANGED_PS |\
BSS_CHANGED_IBSS |\
BSS_CHANGED_ARP_FILTER |\
- BSS_CHANGED_SSID)
+ BSS_CHANGED_SSID |\
+ BSS_CHANGED_MLD_VALID_LINKS)
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
u64 changed)
@@ -317,7 +319,7 @@ static void ieee80211_tasklet_handler(struct tasklet_struct *t)
break;
case IEEE80211_TX_STATUS_MSG:
skb->pkt_type = 0;
- ieee80211_tx_status(&local->hw, skb);
+ ieee80211_tx_status_skb(&local->hw, skb);
break;
default:
WARN(1, "mac80211: Packet is of unknown type %d\n",
@@ -340,6 +342,7 @@ static void ieee80211_restart_work(struct work_struct *work)
rtnl_lock();
/* we might do interface manipulations, so need both */
wiphy_lock(local->hw.wiphy);
+ wiphy_work_flush(local->hw.wiphy, NULL);
WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
"%s called with hardware scan in progress\n", __func__);
@@ -363,15 +366,13 @@ static void ieee80211_restart_work(struct work_struct *work)
*/
wiphy_work_cancel(local->hw.wiphy,
&sdata->u.mgd.csa_connection_drop_work);
- if (sdata->vif.bss_conf.csa_active) {
- sdata_lock(sdata);
+ if (sdata->vif.bss_conf.csa_active)
ieee80211_sta_connection_lost(sdata,
WLAN_REASON_UNSPECIFIED,
false);
- sdata_unlock(sdata);
- }
}
- flush_delayed_work(&sdata->dec_tailroom_needed_wk);
+ wiphy_delayed_work_flush(local->hw.wiphy,
+ &sdata->dec_tailroom_needed_wk);
}
ieee80211_scan_cancel(local);
@@ -436,7 +437,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
if (!wdev)
return NOTIFY_DONE;
- if (wdev->wiphy != local->hw.wiphy)
+ if (wdev->wiphy != local->hw.wiphy || !wdev->registered)
return NOTIFY_DONE;
sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
@@ -451,7 +452,25 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
return NOTIFY_DONE;
ifmgd = &sdata->u.mgd;
- sdata_lock(sdata);
+
+ /*
+ * The nested here is needed to convince lockdep that this is
+ * all OK. Yes, we lock the wiphy mutex here while we already
+ * hold the notifier rwsem, that's the normal case. And yes,
+ * we also acquire the notifier rwsem again when unregistering
+ * a netdev while we already hold the wiphy mutex, so it does
+ * look like a typical ABBA deadlock.
+ *
+ * However, both of these things happen with the RTNL held
+ * already. Therefore, they can't actually happen, since the
+ * lock orders really are ABC and ACB, which is fine due to
+ * the RTNL (A).
+ *
+ * We still need to prevent recursion, which is accomplished
+ * by the !wdev->registered check above.
+ */
+ mutex_lock_nested(&local->hw.wiphy->mtx, 1);
+ __acquire(&local->hw.wiphy->mtx);
/* Copy the addresses to the vif config list */
ifa = rtnl_dereference(idev->ifa_list);
@@ -468,7 +487,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
if (ifmgd->associated)
ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER);
- sdata_unlock(sdata);
+ wiphy_unlock(local->hw.wiphy);
return NOTIFY_OK;
}
@@ -781,9 +800,6 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
__hw_addr_init(&local->mc_list);
mutex_init(&local->iflist_mtx);
- mutex_init(&local->mtx);
-
- mutex_init(&local->key_mtx);
spin_lock_init(&local->filter_lock);
spin_lock_init(&local->rx_path_lock);
spin_lock_init(&local->queue_stop_reason_lock);
@@ -804,7 +820,6 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
spin_lock_init(&local->handle_wake_tx_queue_lock);
INIT_LIST_HEAD(&local->chanctx_list);
- mutex_init(&local->chanctx_mtx);
wiphy_delayed_work_init(&local->scan_work, ieee80211_scan_work);
@@ -813,13 +828,13 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
wiphy_work_init(&local->radar_detected_work,
ieee80211_dfs_radar_detected_work);
- INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
+ wiphy_work_init(&local->reconfig_filter, ieee80211_reconfig_filter);
local->smps_mode = IEEE80211_SMPS_OFF;
- INIT_WORK(&local->dynamic_ps_enable_work,
- ieee80211_dynamic_ps_enable_work);
- INIT_WORK(&local->dynamic_ps_disable_work,
- ieee80211_dynamic_ps_disable_work);
+ wiphy_work_init(&local->dynamic_ps_enable_work,
+ ieee80211_dynamic_ps_enable_work);
+ wiphy_work_init(&local->dynamic_ps_disable_work,
+ ieee80211_dynamic_ps_disable_work);
timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0);
wiphy_work_init(&local->sched_scan_stopped_work,
@@ -1052,6 +1067,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
supp_he = false;
supp_eht = false;
for (band = 0; band < NUM_NL80211_BANDS; band++) {
+ const struct ieee80211_sband_iftype_data *iftd;
struct ieee80211_supported_band *sband;
sband = local->hw.wiphy->bands[band];
@@ -1098,11 +1114,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
supp_ht = supp_ht || sband->ht_cap.ht_supported;
supp_vht = supp_vht || sband->vht_cap.vht_supported;
- for (i = 0; i < sband->n_iftype_data; i++) {
- const struct ieee80211_sband_iftype_data *iftd;
-
- iftd = &sband->iftype_data[i];
-
+ for_each_sband_iftype_data(sband, i, iftd) {
supp_he = supp_he || iftd->he_cap.has_he;
supp_eht = supp_eht || iftd->eht_cap.has_eht;
}
@@ -1443,6 +1455,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
ieee80211_remove_interfaces(local);
rtnl_unlock();
fail_rate:
+ ieee80211_txq_teardown_flows(local);
fail_flows:
ieee80211_led_exit(local);
destroy_workqueue(local->workqueue);
@@ -1479,15 +1492,17 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
*/
ieee80211_remove_interfaces(local);
+ ieee80211_txq_teardown_flows(local);
+
wiphy_lock(local->hw.wiphy);
wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work);
+ wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter);
wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work);
wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work);
wiphy_unlock(local->hw.wiphy);
rtnl_unlock();
cancel_work_sync(&local->restart_work);
- cancel_work_sync(&local->reconfig_filter);
ieee80211_clear_tx_pending(local);
rate_control_deinitialize(local);
@@ -1518,7 +1533,6 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
enum nl80211_band band;
mutex_destroy(&local->iflist_mtx);
- mutex_destroy(&local->mtx);
if (local->wiphy_ciphers_allocated) {
kfree(local->hw.wiphy->cipher_suites);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 19:54:27 +0000