Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

1 files changed, 8 insertions, 46 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 44154cc596cd..3b9ec4ef81c3 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -230,10 +230,6 @@ static inline int identical_mac_addr_allowed(int type1, int type2)
 		type2 == NL80211_IFTYPE_MONITOR ||
 		type1 == NL80211_IFTYPE_P2P_DEVICE ||
 		type2 == NL80211_IFTYPE_P2P_DEVICE ||
-		(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) ||
-		(type1 == NL80211_IFTYPE_WDS &&
-			(type2 == NL80211_IFTYPE_WDS ||
-			 type2 == NL80211_IFTYPE_AP)) ||
 		(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_AP_VLAN) ||
 		(type1 == NL80211_IFTYPE_AP_VLAN &&
 			(type2 == NL80211_IFTYPE_AP ||
@@ -417,15 +413,12 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	 * (because if we remove a STA after ops->remove_interface()
 	 * the driver will have removed the vif info already!)
 	 *
-	 * In WDS mode a station must exist here and be flushed, for
-	 * AP_VLANs stations may exist since there's nothing else that
+	 * For AP_VLANs stations may exist since there's nothing else that
 	 * would have removed them, but in other modes there shouldn't
 	 * be any stations.
 	 */
 	flushed = sta_info_flush(sdata);
-	WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
-		     ((sdata->vif.type != NL80211_IFTYPE_WDS && flushed > 0) ||
-		      (sdata->vif.type == NL80211_IFTYPE_WDS && flushed != 1)));
+	WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP_VLAN && flushed > 0);
 
 	/* don't count this interface for allmulti while it is down */
 	if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
@@ -552,8 +545,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		 * When we get here, the interface is marked down.
 		 * Free the remaining keys, if there are any
 		 * (which can happen in AP mode if userspace sets
-		 * keys before the interface is operating, and maybe
-		 * also in WDS mode)
+		 * keys before the interface is operating)
 		 *
 		 * Force the key freeing to always synchronize_net()
 		 * to wait for the RX path in case it is using this
@@ -1022,16 +1014,11 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 	struct net_device *dev = wdev->netdev;
 	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
 	u32 changed = 0;
 	int res;
 	u32 hw_reconf_flags = 0;
 
 	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_WDS:
-		if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
-			return -ENOLINK;
-		break;
 	case NL80211_IFTYPE_AP_VLAN: {
 		struct ieee80211_sub_if_data *master;
 
@@ -1080,6 +1067,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	case NUM_NL80211_IFTYPES:
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_WDS:
 		/* cannot happen */
 		WARN_ON(1);
 		break;
@@ -1198,7 +1186,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		case NL80211_IFTYPE_OCB:
 			netif_carrier_off(dev);
 			break;
-		case NL80211_IFTYPE_WDS:
 		case NL80211_IFTYPE_P2P_DEVICE:
 		case NL80211_IFTYPE_NAN:
 			break;
@@ -1220,28 +1207,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	set_bit(SDATA_STATE_RUNNING, &sdata->state);
 
 	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_WDS:
-		/* Create STA entry for the WDS peer */
-		sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
-				     GFP_KERNEL);
-		if (!sta) {
-			res = -ENOMEM;
-			goto err_del_interface;
-		}
-
-		sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
-		sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
-		sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
-
-		res = sta_info_insert(sta);
-		if (res) {
-			/* STA has been freed */
-			goto err_del_interface;
-		}
-
-		rate_control_rate_init(sta);
-		netif_carrier_on(dev);
-		break;
 	case NL80211_IFTYPE_P2P_DEVICE:
 		rcu_assign_pointer(local->p2p_sdata, sdata);
 		break;
@@ -1358,6 +1323,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 	while ((skb = skb_dequeue(&sdata->skb_queue))) {
 		struct ieee80211_mgmt *mgmt = (void *)skb->data;
 
+		kcov_remote_start_common(skb_get_kcov_handle(skb));
 		if (ieee80211_is_action(mgmt->frame_control) &&
 		    mgmt->u.action.category == WLAN_CATEGORY_BACK) {
 			int len = skb->len;
@@ -1467,6 +1433,7 @@ static void ieee80211_iface_work(struct work_struct *work)
 		}
 
 		kfree_skb(skb);
+		kcov_remote_stop();
 	}
 
 	/* then other type-dependent work */
@@ -1576,9 +1543,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		sdata->u.mntr.flags = MONITOR_FLAG_CONTROL |
 				      MONITOR_FLAG_OTHER_BSS;
 		break;
-	case NL80211_IFTYPE_WDS:
-		sdata->vif.bss_conf.bssid = NULL;
-		break;
 	case NL80211_IFTYPE_NAN:
 		idr_init(&sdata->u.nan.function_inst_ids);
 		spin_lock_init(&sdata->u.nan.func_lock);
@@ -1589,6 +1553,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.bss_conf.bssid = sdata->vif.addr;
 		break;
 	case NL80211_IFTYPE_UNSPECIFIED:
+	case NL80211_IFTYPE_WDS:
 	case NUM_NL80211_IFTYPES:
 		WARN_ON(1);
 		break;
@@ -1633,9 +1598,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
 	case NL80211_IFTYPE_OCB:
 		/*
 		 * Could probably support everything
-		 * but WDS here (WDS do_open can fail
-		 * under memory pressure, which this
-		 * code isn't prepared to handle).
+		 * but here.
 		 */
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
@@ -1728,7 +1691,6 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local,
 	case NL80211_IFTYPE_MONITOR:
 		/* doesn't matter */
 		break;
-	case NL80211_IFTYPE_WDS:
 	case NL80211_IFTYPE_AP_VLAN:
 		/* match up with an AP interface */
 		list_for_each_entry(sdata, &local->interfaces, list) {