Merge tag 'net-6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
"Including fixes from bpf and wifi.

Current release - regressions:

- neighbour: fix __randomize_layout crash in struct neighbour

- r8169: fix deadlock on RTL8125 in jumbo mtu mode

Previous releases - regressions:

- wifi:
- mac80211: fix warning at station removal time
- cfg80211: fix CQM for non-range use

- tools: ynl-gen: fix unexpected response handling

- octeontx2-af: fix possible buffer overflow

- dpaa2: recycle the RX buffer only after all processing done

- rswitch: fix missing dev_kfree_skb_any() in error path

Previous releases - always broken:

- ipv4: fix uaf issue when receiving igmp query packet

- wifi: mac80211: fix debugfs deadlock at device removal time

- bpf:
- sockmap: af_unix stream sockets need to hold ref for pair sock
- netdevsim: don't accept device bound programs

- selftests: fix a char signedness issue

- dsa: mv88e6xxx: fix marvell 6350 probe crash

- octeontx2-pf: restore TC ingress police rules when interface is up

- wangxun: fix memory leak on msix entry

- ravb: keep reverse order of operations in ravb_remove()"

* tag 'net-6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
net: ravb: Keep reverse order of operations in ravb_remove()
net: ravb: Stop DMA in case of failures on ravb_open()
net: ravb: Start TX queues after HW initialization succeeded
net: ravb: Make write access to CXR35 first before accessing other EMAC registers
net: ravb: Use pm_runtime_resume_and_get()
net: ravb: Check return value of reset_control_deassert()
net: libwx: fix memory leak on msix entry
ice: Fix VF Reset paths when interface in a failed over aggregate
bpf, sockmap: Add af_unix test with both sockets in map
bpf, sockmap: af_unix stream sockets need to hold ref for pair sock
tools: ynl-gen: always construct struct ynl_req_state
ethtool: don't propagate EOPNOTSUPP from dumps
ravb: Fix races between ravb_tx_timeout_work() and net related ops
r8169: prevent potential deadlock in rtl8169_close
r8169: fix deadlock on RTL8125 in jumbo mtu mode
neighbour: Fix __randomize_layout crash in struct neighbour
octeontx2-pf: Restore TC ingress police rules when interface is up
octeontx2-pf: Fix adding mbox work queue entry when num_vfs > 64
net: stmmac: xgmac: Disable FPE MMC interrupts
octeontx2-af: Fix possible buffer overflow
...

drivers/net/dsa/mv88e6xxx/chip.c

···
 	config->mac_capabilities = MAC_SYM_PAUSE | MAC_10 | MAC_100;
 }
 
+static void mv88e6351_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
+				       struct phylink_config *config)
+{
+	unsigned long *supported = config->supported_interfaces;
+
+	/* Translate the default cmode */
+	mv88e6xxx_translate_cmode(chip->ports[port].cmode, supported);
+
+	config->mac_capabilities = MAC_SYM_PAUSE | MAC_10 | MAC_100 |
+				   MAC_1000FD;
+}
+
 static int mv88e6352_get_port4_serdes_cmode(struct mv88e6xxx_chip *chip)
 {
 	u16 reg, val;
···
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
 
-	if (chip->info->ops->pcs_ops->pcs_init) {
+	if (chip->info->ops->pcs_ops &&
+	    chip->info->ops->pcs_ops->pcs_init) {
 		err = chip->info->ops->pcs_ops->pcs_init(chip, port);
 		if (err)
 			return err;
···
 
 	mv88e6xxx_teardown_devlink_regions_port(ds, port);
 
-	if (chip->info->ops->pcs_ops->pcs_teardown)
+	if (chip->info->ops->pcs_ops &&
+	    chip->info->ops->pcs_ops->pcs_teardown)
 		chip->info->ops->pcs_ops->pcs_teardown(chip, port);
 }
 
···
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.stu_getnext = mv88e6352_g1_stu_getnext,
 	.stu_loadpurge = mv88e6352_g1_stu_loadpurge,
-	.phylink_get_caps = mv88e6185_phylink_get_caps,
+	.phylink_get_caps = mv88e6351_phylink_get_caps,
 };
 
 static const struct mv88e6xxx_ops mv88e6172_ops = {
···
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.stu_getnext = mv88e6352_g1_stu_getnext,
 	.stu_loadpurge = mv88e6352_g1_stu_loadpurge,
-	.phylink_get_caps = mv88e6185_phylink_get_caps,
+	.phylink_get_caps = mv88e6351_phylink_get_caps,
 };
 
 static const struct mv88e6xxx_ops mv88e6176_ops = {
···
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.stu_getnext = mv88e6352_g1_stu_getnext,
 	.stu_loadpurge = mv88e6352_g1_stu_loadpurge,
-	.phylink_get_caps = mv88e6185_phylink_get_caps,
+	.phylink_get_caps = mv88e6351_phylink_get_caps,
 };
 
 static const struct mv88e6xxx_ops mv88e6351_ops = {
···
 	.stu_loadpurge = mv88e6352_g1_stu_loadpurge,
 	.avb_ops = &mv88e6352_avb_ops,
 	.ptp_ops = &mv88e6352_ptp_ops,
-	.phylink_get_caps = mv88e6185_phylink_get_caps,
+	.phylink_get_caps = mv88e6351_phylink_get_caps,
 };
 
 static const struct mv88e6xxx_ops mv88e6352_ops = {

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

···
 
 	memcpy(skb->data, fd_vaddr + fd_offset, fd_length);
 
-	dpaa2_eth_recycle_buf(priv, ch, dpaa2_fd_get_addr(fd));
-
 	return skb;
 }
 
···
 	struct rtnl_link_stats64 *percpu_stats;
 	struct dpaa2_eth_drv_stats *percpu_extras;
 	struct device *dev = priv->net_dev->dev.parent;
+	bool recycle_rx_buf = false;
 	void *buf_data;
 	u32 xdp_act;
 
···
 			dma_unmap_page(dev, addr, priv->rx_buf_size,
 				       DMA_BIDIRECTIONAL);
 			skb = dpaa2_eth_build_linear_skb(ch, fd, vaddr);
+		} else {
+			recycle_rx_buf = true;
 		}
 	} else if (fd_format == dpaa2_fd_sg) {
 		WARN_ON(priv->xdp_prog);
···
 		goto err_build_skb;
 
 	dpaa2_eth_receive_skb(priv, ch, fd, vaddr, fq, percpu_stats, skb);
+
+	if (recycle_rx_buf)
+		dpaa2_eth_recycle_buf(priv, ch, dpaa2_fd_get_addr(fd));
 	return;
 
 err_build_skb:
···
 	dma_addr_t addr;
 
 	buffer_start = skb->data - dpaa2_eth_needed_headroom(skb);
-
-	/* If there's enough room to align the FD address, do it.
-	 * It will help hardware optimize accesses.
-	 */
 	aligned_start = PTR_ALIGN(buffer_start - DPAA2_ETH_TX_BUF_ALIGN,
 				  DPAA2_ETH_TX_BUF_ALIGN);
 	if (aligned_start >= skb->head)
 		buffer_start = aligned_start;
+	else
+		return -ENOMEM;
 
 	/* Store a backpointer to the skb at the beginning of the buffer
 	 * (in the private data area) such that we can release it
···
 	err = dpaa2_eth_dl_port_add(priv);
 	if (err)
 		goto err_dl_port_add;
+
+	net_dev->needed_headroom = DPAA2_ETH_SWA_SIZE + DPAA2_ETH_TX_BUF_ALIGN;
 
 	err = register_netdev(net_dev);
 	if (err < 0) {

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h

···
 
 static inline unsigned int dpaa2_eth_needed_headroom(struct sk_buff *skb)
 {
-	unsigned int headroom = DPAA2_ETH_SWA_SIZE;
+	unsigned int headroom = DPAA2_ETH_SWA_SIZE + DPAA2_ETH_TX_BUF_ALIGN;
 
 	/* If we don't have an skb (e.g. XDP buffer), we only need space for
 	 * the software annotation area

drivers/net/ethernet/intel/ice/ice_lag.c

···
 }
 
 /**
+ * ice_lag_build_netdev_list - populate the lag struct's netdev list
+ * @lag: local lag struct
+ * @ndlist: pointer to netdev list to populate
+ */
+static void ice_lag_build_netdev_list(struct ice_lag *lag,
+				      struct ice_lag_netdev_list *ndlist)
+{
+	struct ice_lag_netdev_list *nl;
+	struct net_device *tmp_nd;
+
+	INIT_LIST_HEAD(&ndlist->node);
+	rcu_read_lock();
+	for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) {
+		nl = kzalloc(sizeof(*nl), GFP_ATOMIC);
+		if (!nl)
+			break;
+
+		nl->netdev = tmp_nd;
+		list_add(&nl->node, &ndlist->node);
+	}
+	rcu_read_unlock();
+	lag->netdev_head = &ndlist->node;
+}
+
+/**
+ * ice_lag_destroy_netdev_list - free lag struct's netdev list
+ * @lag: pointer to local lag struct
+ * @ndlist: pointer to lag struct netdev list
+ */
+static void ice_lag_destroy_netdev_list(struct ice_lag *lag,
+					struct ice_lag_netdev_list *ndlist)
+{
+	struct ice_lag_netdev_list *entry, *n;
+
+	rcu_read_lock();
+	list_for_each_entry_safe(entry, n, &ndlist->node, node) {
+		list_del(&entry->node);
+		kfree(entry);
+	}
+	rcu_read_unlock();
+	lag->netdev_head = NULL;
+}
+
+/**
  * ice_lag_move_single_vf_nodes - Move Tx scheduling nodes for single VF
  * @lag: primary interface LAG struct
  * @oldport: lport of previous interface
···
 void ice_lag_move_new_vf_nodes(struct ice_vf *vf)
 {
 	struct ice_lag_netdev_list ndlist;
-	struct list_head *tmp, *n;
 	u8 pri_port, act_port;
 	struct ice_lag *lag;
 	struct ice_vsi *vsi;
···
 	pri_port = pf->hw.port_info->lport;
 	act_port = lag->active_port;
 
-	if (lag->upper_netdev) {
-		struct ice_lag_netdev_list *nl;
-		struct net_device *tmp_nd;
-
-		INIT_LIST_HEAD(&ndlist.node);
-		rcu_read_lock();
-		for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) {
-			nl = kzalloc(sizeof(*nl), GFP_ATOMIC);
-			if (!nl)
-				break;
-
-			nl->netdev = tmp_nd;
-			list_add(&nl->node, &ndlist.node);
-		}
-		rcu_read_unlock();
-	}
-
-	lag->netdev_head = &ndlist.node;
+	if (lag->upper_netdev)
+		ice_lag_build_netdev_list(lag, &ndlist);
 
 	if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG) &&
 	    lag->bonded && lag->primary && pri_port != act_port &&
 	    !list_empty(lag->netdev_head))
 		ice_lag_move_single_vf_nodes(lag, pri_port, act_port, vsi->idx);
 
-	list_for_each_safe(tmp, n, &ndlist.node) {
-		struct ice_lag_netdev_list *entry;
-
-		entry = list_entry(tmp, struct ice_lag_netdev_list, node);
-		list_del(&entry->node);
-		kfree(entry);
-	}
-	lag->netdev_head = NULL;
+	ice_lag_destroy_netdev_list(lag, &ndlist);
 
 new_vf_unlock:
 	mutex_unlock(&pf->lag_mutex);
···
 		if (pf->vsi[i] && (pf->vsi[i]->type == ICE_VSI_VF ||
 				   pf->vsi[i]->type == ICE_VSI_SWITCHDEV_CTRL))
 			ice_lag_move_single_vf_nodes(lag, oldport, newport, i);
+}
+
+/**
+ * ice_lag_move_vf_nodes_cfg - move vf nodes outside LAG netdev event context
+ * @lag: local lag struct
+ * @src_prt: lport value for source port
+ * @dst_prt: lport value for destination port
+ *
+ * This function is used to move nodes during an out-of-netdev-event situation,
+ * primarily when the driver needs to reconfigure or recreate resources.
+ *
+ * Must be called while holding the lag_mutex to avoid lag events from
+ * processing while out-of-sync moves are happening.  Also, paired moves,
+ * such as used in a reset flow, should both be called under the same mutex
+ * lock to avoid changes between start of reset and end of reset.
+ */
+void ice_lag_move_vf_nodes_cfg(struct ice_lag *lag, u8 src_prt, u8 dst_prt)
+{
+	struct ice_lag_netdev_list ndlist;
+
+	ice_lag_build_netdev_list(lag, &ndlist);
+	ice_lag_move_vf_nodes(lag, src_prt, dst_prt);
+	ice_lag_destroy_netdev_list(lag, &ndlist);
 }
 
 #define ICE_LAG_SRIOV_CP_RECIPE		10
···
 {
 	struct ice_lag_netdev_list ndlist;
 	struct ice_lag *lag, *prim_lag;
-	struct list_head *tmp, *n;
 	u8 act_port, loc_port;
 
 	if (!pf->lag || !pf->lag->bonded)
···
 	if (lag->primary) {
 		prim_lag = lag;
 	} else {
-		struct ice_lag_netdev_list *nl;
-		struct net_device *tmp_nd;
-
-		INIT_LIST_HEAD(&ndlist.node);
-		rcu_read_lock();
-		for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) {
-			nl = kzalloc(sizeof(*nl), GFP_ATOMIC);
-			if (!nl)
-				break;
-
-			nl->netdev = tmp_nd;
-			list_add(&nl->node, &ndlist.node);
-		}
-		rcu_read_unlock();
-		lag->netdev_head = &ndlist.node;
+		ice_lag_build_netdev_list(lag, &ndlist);
 		prim_lag = ice_lag_find_primary(lag);
 	}
 
···
 
 	ice_clear_rdma_cap(pf);
 lag_rebuild_out:
-	list_for_each_safe(tmp, n, &ndlist.node) {
-		struct ice_lag_netdev_list *entry;
-
-		entry = list_entry(tmp, struct ice_lag_netdev_list, node);
-		list_del(&entry->node);
-		kfree(entry);
-	}
+	ice_lag_destroy_netdev_list(lag, &ndlist);
 	mutex_unlock(&pf->lag_mutex);
 }
 

drivers/net/ethernet/intel/ice/ice_lag.h

···
 void ice_deinit_lag(struct ice_pf *pf);
 void ice_lag_rebuild(struct ice_pf *pf);
 bool ice_lag_is_switchdev_running(struct ice_pf *pf);
+void ice_lag_move_vf_nodes_cfg(struct ice_lag *lag, u8 src_prt, u8 dst_prt);
 #endif /* _ICE_LAG_H_ */

drivers/net/ethernet/intel/ice/ice_vf_lib.c

···
 int ice_reset_vf(struct ice_vf *vf, u32 flags)
 {
 	struct ice_pf *pf = vf->pf;
+	struct ice_lag *lag;
 	struct ice_vsi *vsi;
+	u8 act_prt, pri_prt;
 	struct device *dev;
 	int err = 0;
 	bool rsd;
 
 	dev = ice_pf_to_dev(pf);
+	act_prt = ICE_LAG_INVALID_PORT;
+	pri_prt = pf->hw.port_info->lport;
 
 	if (flags & ICE_VF_RESET_NOTIFY)
 		ice_notify_vf_reset(vf);
···
 		dev_dbg(dev, "Trying to reset VF %d, but all VF resets are disabled\n",
 			vf->vf_id);
 		return 0;
+	}
+
+	lag = pf->lag;
+	mutex_lock(&pf->lag_mutex);
+	if (lag && lag->bonded && lag->primary) {
+		act_prt = lag->active_port;
+		if (act_prt != pri_prt && act_prt != ICE_LAG_INVALID_PORT &&
+		    lag->upper_netdev)
+			ice_lag_move_vf_nodes_cfg(lag, act_prt, pri_prt);
+		else
+			act_prt = ICE_LAG_INVALID_PORT;
 	}
 
 	if (flags & ICE_VF_RESET_LOCK)
···
 out_unlock:
 	if (flags & ICE_VF_RESET_LOCK)
 		mutex_unlock(&vf->cfg_lock);
+
+	if (lag && lag->bonded && lag->primary &&
+	    act_prt != ICE_LAG_INVALID_PORT)
+		ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt);
+	mutex_unlock(&pf->lag_mutex);
 
 	return err;
 }

drivers/net/ethernet/intel/ice/ice_virtchnl.c

···
 	    (struct virtchnl_vsi_queue_config_info *)msg;
 	struct virtchnl_queue_pair_info *qpi;
 	struct ice_pf *pf = vf->pf;
+	struct ice_lag *lag;
 	struct ice_vsi *vsi;
+	u8 act_prt, pri_prt;
 	int i = -1, q_idx;
+
+	lag = pf->lag;
+	mutex_lock(&pf->lag_mutex);
+	act_prt = ICE_LAG_INVALID_PORT;
+	pri_prt = pf->hw.port_info->lport;
+	if (lag && lag->bonded && lag->primary) {
+		act_prt = lag->active_port;
+		if (act_prt != pri_prt && act_prt != ICE_LAG_INVALID_PORT &&
+		    lag->upper_netdev)
+			ice_lag_move_vf_nodes_cfg(lag, act_prt, pri_prt);
+		else
+			act_prt = ICE_LAG_INVALID_PORT;
+	}
 
 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
 		goto error_param;
···
 		}
 	}
 
+	if (lag && lag->bonded && lag->primary &&
+	    act_prt != ICE_LAG_INVALID_PORT)
+		ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt);
+	mutex_unlock(&pf->lag_mutex);
+
 	/* send the response to the VF */
 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
 				     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
···
 			dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
 				vf->vf_id, i);
 	}
+
+	if (lag && lag->bonded && lag->primary &&
+	    act_prt != ICE_LAG_INVALID_PORT)
+		ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt);
+	mutex_unlock(&pf->lag_mutex);
 
 	ice_lag_move_new_vf_nodes(vf);
 

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

···
 
 		ipolicer = &nix_hw->ipolicer[layer];
 		for (idx = 0; idx < req->prof_count[layer]; idx++) {
+			if (idx == MAX_BANDPROF_PER_PFFUNC)
+				break;
 			prof_idx = req->prof_idx[layer][idx];
 			if (prof_idx >= ipolicer->band_prof.max ||
 			    ipolicer->pfvf_map[prof_idx] != pcifunc)
···
 			ipolicer->pfvf_map[prof_idx] = 0x00;
 			ipolicer->match_id[prof_idx] = 0;
 			rvu_free_rsrc(&ipolicer->band_prof, prof_idx);
-			if (idx == MAX_BANDPROF_PER_PFFUNC)
-				break;
 		}
 	}
 	mutex_unlock(&rvu->rsrc_lock);

drivers/net/ethernet/marvell/octeontx2/nic/cn10k.c

···
 	aq->prof.pebs_mantissa = 0;
 	aq->prof_mask.pebs_mantissa = 0xFF;
 
+	aq->prof.hl_en = 0;
+	aq->prof_mask.hl_en = 1;
+
 	/* Fill AQ info */
 	aq->qidx = profile;
 	aq->ctype = NIX_AQ_CTYPE_BANDPROF;

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

···
 void otx2_shutdown_tc(struct otx2_nic *nic);
 int otx2_setup_tc(struct net_device *netdev, enum tc_setup_type type,
 		  void *type_data);
+void otx2_tc_apply_ingress_police_rules(struct otx2_nic *nic);
+
 /* CGX/RPM DMAC filters support */
 int otx2_dmacflt_get_max_cnt(struct otx2_nic *pf);
 int otx2_dmacflt_add(struct otx2_nic *pf, const u8 *mac, u32 bit_pos);

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

···
 		otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(1), intr);
 		otx2_queue_work(mbox, pf->mbox_pfvf_wq, 64, vfs, intr,
 				TYPE_PFVF);
-		vfs -= 64;
+		if (intr)
+			trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
+		vfs = 64;
 	}
 
 	intr = otx2_read64(pf, RVU_PF_VFPF_MBOX_INTX(0));
···
 
 	otx2_queue_work(mbox, pf->mbox_pfvf_wq, 0, vfs, intr, TYPE_PFVF);
 
-	trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
+	if (intr)
+		trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
 
 	return IRQ_HANDLED;
 }
···
 	/* Install DMAC Filters */
 	if (pf->flags & OTX2_FLAG_DMACFLTR_SUPPORT)
 		otx2_dmacflt_reinstall_flows(pf);
+
+	otx2_tc_apply_ingress_police_rules(pf);
 
 	err = otx2_rxtx_enable(pf, true);
 	/* If a mbox communication error happens at this point then interface

drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c

···
 	bool				is_act_police;
 	u32				prio;
 	struct npc_install_flow_req	req;
+	u64				rate;
+	u32				burst;
+	bool				is_pps;
 };
 
 static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst,
···
 	return err;
 }
 
+static int otx2_tc_act_set_hw_police(struct otx2_nic *nic,
+				     struct otx2_tc_flow *node)
+{
+	int rc;
+
+	mutex_lock(&nic->mbox.lock);
+
+	rc = cn10k_alloc_leaf_profile(nic, &node->leaf_profile);
+	if (rc) {
+		mutex_unlock(&nic->mbox.lock);
+		return rc;
+	}
+
+	rc = cn10k_set_ipolicer_rate(nic, node->leaf_profile,
+				     node->burst, node->rate, node->is_pps);
+	if (rc)
+		goto free_leaf;
+
+	rc = cn10k_map_unmap_rq_policer(nic, node->rq, node->leaf_profile, true);
+	if (rc)
+		goto free_leaf;
+
+	mutex_unlock(&nic->mbox.lock);
+
+	return 0;
+
+free_leaf:
+	if (cn10k_free_leaf_profile(nic, node->leaf_profile))
+		netdev_err(nic->netdev,
+			   "Unable to free leaf bandwidth profile(%d)\n",
+			   node->leaf_profile);
+	mutex_unlock(&nic->mbox.lock);
+	return rc;
+}
+
 static int otx2_tc_act_set_police(struct otx2_nic *nic,
 				  struct otx2_tc_flow *node,
 				  struct flow_cls_offload *f,
···
 		return -EINVAL;
 	}
 
-	mutex_lock(&nic->mbox.lock);
-
-	rc = cn10k_alloc_leaf_profile(nic, &node->leaf_profile);
-	if (rc) {
-		mutex_unlock(&nic->mbox.lock);
-		return rc;
-	}
-
-	rc = cn10k_set_ipolicer_rate(nic, node->leaf_profile, burst, rate, pps);
-	if (rc)
-		goto free_leaf;
-
-	rc = cn10k_map_unmap_rq_policer(nic, rq_idx, node->leaf_profile, true);
-	if (rc)
-		goto free_leaf;
-
-	mutex_unlock(&nic->mbox.lock);
-
 	req->match_id = mark & 0xFFFFULL;
 	req->index = rq_idx;
 	req->op = NIX_RX_ACTIONOP_UCAST;
-	set_bit(rq_idx, &nic->rq_bmap);
+
 	node->is_act_police = true;
 	node->rq = rq_idx;
+	node->burst = burst;
+	node->rate = rate;
+	node->is_pps = pps;
 
-	return 0;
+	rc = otx2_tc_act_set_hw_police(nic, node);
+	if (!rc)
+		set_bit(rq_idx, &nic->rq_bmap);
 
-free_leaf:
-	if (cn10k_free_leaf_profile(nic, node->leaf_profile))
-		netdev_err(nic->netdev,
-			   "Unable to free leaf bandwidth profile(%d)\n",
-			   node->leaf_profile);
-	mutex_unlock(&nic->mbox.lock);
 	return rc;
 }
 
···
 	}
 
 	if (flow_node->is_act_police) {
+		__clear_bit(flow_node->rq, &nic->rq_bmap);
+
+		if (nic->flags & OTX2_FLAG_INTF_DOWN)
+			goto free_mcam_flow;
+
 		mutex_lock(&nic->mbox.lock);
 
 		err = cn10k_map_unmap_rq_policer(nic, flow_node->rq,
···
 				   "Unable to free leaf bandwidth profile(%d)\n",
 				   flow_node->leaf_profile);
 
-		__clear_bit(flow_node->rq, &nic->rq_bmap);
-
 		mutex_unlock(&nic->mbox.lock);
 	}
 
+free_mcam_flow:
 	otx2_del_mcam_flow_entry(nic, flow_node->entry, NULL);
 	otx2_tc_update_mcam_table(nic, flow_cfg, flow_node, false);
 	kfree_rcu(flow_node, rcu);
···
 
 	if (!(nic->flags & OTX2_FLAG_TC_FLOWER_SUPPORT))
 		return -ENOMEM;
+
+	if (nic->flags & OTX2_FLAG_INTF_DOWN) {
+		NL_SET_ERR_MSG_MOD(extack, "Interface not initialized");
+		return -EINVAL;
+	}
 
 	if (flow_cfg->nr_flows == flow_cfg->max_flows) {
 		NL_SET_ERR_MSG_MOD(extack,
···
 	otx2_destroy_tc_flow_list(nic);
 }
 EXPORT_SYMBOL(otx2_shutdown_tc);
+
+static void otx2_tc_config_ingress_rule(struct otx2_nic *nic,
+					struct otx2_tc_flow *node)
+{
+	struct npc_install_flow_req *req;
+
+	if (otx2_tc_act_set_hw_police(nic, node))
+		return;
+
+	mutex_lock(&nic->mbox.lock);
+
+	req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox);
+	if (!req)
+		goto err;
+
+	memcpy(req, &node->req, sizeof(struct npc_install_flow_req));
+
+	if (otx2_sync_mbox_msg(&nic->mbox))
+		netdev_err(nic->netdev,
+			   "Failed to install MCAM flow entry for ingress rule");
+err:
+	mutex_unlock(&nic->mbox.lock);
+}
+
+void otx2_tc_apply_ingress_police_rules(struct otx2_nic *nic)
+{
+	struct otx2_flow_config *flow_cfg = nic->flow_cfg;
+	struct otx2_tc_flow *node;
+
+	/* If any ingress policer rules exist for the interface then
+	 * apply those rules. Ingress policer rules depend on bandwidth
+	 * profiles linked to the receive queues. Since no receive queues
+	 * exist when interface is down, ingress policer rules are stored
+	 * and configured in hardware after all receive queues are allocated
+	 * in otx2_open.
+	 */
+	list_for_each_entry(node, &flow_cfg->flow_list_tc, list) {
+		if (node->is_act_police)
+			otx2_tc_config_ingress_rule(nic, node);
+	}
+}
+EXPORT_SYMBOL(otx2_tc_apply_ingress_police_rules);

drivers/net/ethernet/realtek/r8169_main.c

···
 enum rtl_flag {
 	RTL_FLAG_TASK_ENABLED = 0,
 	RTL_FLAG_TASK_RESET_PENDING,
+	RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE,
 	RTL_FLAG_TASK_TX_TIMEOUT,
 	RTL_FLAG_MAX
 };
···
 reset:
 		rtl_reset_work(tp);
 		netif_wake_queue(tp->dev);
+	} else if (test_and_clear_bit(RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE, tp->wk.flags)) {
+		rtl_reset_work(tp);
 	}
 out_unlock:
 	rtnl_unlock();
···
 	} else {
 		/* In few cases rx is broken after link-down otherwise */
 		if (rtl_is_8125(tp))
-			rtl_reset_work(tp);
+			rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE);
 		pm_runtime_idle(d);
 	}
 
···
 	rtl8169_down(tp);
 	rtl8169_rx_clear(tp);
 
-	cancel_work_sync(&tp->wk.work);
+	cancel_work(&tp->wk.work);
 
 	free_irq(tp->irq, tp);
 
···
 
 	if (pci_dev_run_wake(pdev))
 		pm_runtime_get_noresume(&pdev->dev);
+
+	cancel_work_sync(&tp->wk.work);
 
 	unregister_netdev(tp->dev);
 

drivers/net/ethernet/renesas/ravb_main.c

···
 {
 	struct ravb_private *priv = netdev_priv(ndev);
 
+	if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
+		ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_MII, CXR35);
+		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, 0);
+	} else {
+		ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_RGMII, CXR35);
+		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1,
+			    CXR31_SEL_LINK0);
+	}
+
 	/* Receive frame limit set register */
 	ravb_write(ndev, GBETH_RX_BUFF_MAX + ETH_FCS_LEN, RFLR);
 
···
 
 	/* E-MAC interrupt enable register */
 	ravb_write(ndev, ECSIPR_ICDIP, ECSIPR);
-
-	if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
-		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, 0);
-		ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_MII, CXR35);
-	} else {
-		ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1,
-			    CXR31_SEL_LINK0);
-	}
 }
 
 static void ravb_emac_init_rcar(struct net_device *ndev)
···
 	if (info->gptp)
 		ravb_ptp_init(ndev, priv->pdev);
 
-	netif_tx_start_all_queues(ndev);
-
 	/* PHY control start */
 	error = ravb_phy_start(ndev);
 	if (error)
 		goto out_ptp_stop;
+
+	netif_tx_start_all_queues(ndev);
 
 	return 0;
 
···
 	/* Stop PTP Clock driver */
 	if (info->gptp)
 		ravb_ptp_stop(ndev);
+	ravb_stop_dma(ndev);
 out_free_irq_mgmta:
 	if (!info->multi_irqs)
 		goto out_free_irq;
···
 	struct net_device *ndev = priv->ndev;
 	int error;
 
+	if (!rtnl_trylock()) {
+		usleep_range(1000, 2000);
+		schedule_work(&priv->work);
+		return;
+	}
+
 	netif_tx_stop_all_queues(ndev);
 
 	/* Stop PTP Clock driver */
···
 		 */
 		netdev_err(ndev, "%s: ravb_dmac_init() failed, error %d\n",
 			   __func__, error);
-		return;
+		goto out_unlock;
 	}
 	ravb_emac_init(ndev);
 
···
 		ravb_ptp_init(ndev, priv->pdev);
 
 	netif_tx_start_all_queues(ndev);
+
+out_unlock:
+	rtnl_unlock();
 }
 
 /* Packet transmit function for Ethernet AVB */
···
 	ndev->features = info->net_features;
 	ndev->hw_features = info->net_hw_features;
 
-	reset_control_deassert(rstc);
+	error = reset_control_deassert(rstc);
+	if (error)
+		goto out_free_netdev;
+
 	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
+	error = pm_runtime_resume_and_get(&pdev->dev);
+	if (error < 0)
+		goto out_rpm_disable;
 
 	if (info->multi_irqs) {
 		if (info->err_mgmt_irqs)
···
 out_disable_refclk:
 	clk_disable_unprepare(priv->refclk);
 out_release:
-	free_netdev(ndev);
-
 	pm_runtime_put(&pdev->dev);
+out_rpm_disable:
 	pm_runtime_disable(&pdev->dev);
 	reset_control_assert(rstc);
+out_free_netdev:
+	free_netdev(ndev);
 	return error;
 }
 
···
 	struct ravb_private *priv = netdev_priv(ndev);
 	const struct ravb_hw_info *info = priv->info;
 
-	/* Stop PTP Clock driver */
-	if (info->ccc_gac)
-		ravb_ptp_stop(ndev);
-
-	clk_disable_unprepare(priv->gptp_clk);
-	clk_disable_unprepare(priv->refclk);
-
-	/* Set reset mode */
-	ravb_write(ndev, CCC_OPC_RESET, CCC);
 	unregister_netdev(ndev);
 	if (info->nc_queues)
 		netif_napi_del(&priv->napi[RAVB_NC]);
 	netif_napi_del(&priv->napi[RAVB_BE]);
+
 	ravb_mdio_release(priv);
+
+	/* Stop PTP Clock driver */
+	if (info->ccc_gac)
+		ravb_ptp_stop(ndev);
+
 	dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
 			  priv->desc_bat_dma);
+
+	/* Set reset mode */
+	ravb_write(ndev, CCC_OPC_RESET, CCC);
+
+	clk_disable_unprepare(priv->gptp_clk);
+	clk_disable_unprepare(priv->refclk);
+
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	reset_control_assert(priv->rstc);

drivers/net/ethernet/renesas/rswitch.c

···
 {
 	struct rswitch_device *rdev = netdev_priv(ndev);
 	struct rswitch_gwca_queue *gq = rdev->tx_queue;
+	netdev_tx_t ret = NETDEV_TX_OK;
 	struct rswitch_ext_desc *desc;
-	int ret = NETDEV_TX_OK;
 	dma_addr_t dma_addr;
 
 	if (rswitch_get_num_cur_queues(gq) >= gq->ring_size - 1) {
···
 		return ret;
 
 	dma_addr = dma_map_single(ndev->dev.parent, skb->data, skb->len, DMA_TO_DEVICE);
-	if (dma_mapping_error(ndev->dev.parent, dma_addr)) {
-		dev_kfree_skb_any(skb);
-		return ret;
-	}
+	if (dma_mapping_error(ndev->dev.parent, dma_addr))
+		goto err_kfree;
 
 	gq->skbs[gq->cur] = skb;
 	desc = &gq->tx_ring[gq->cur];
···
 		struct rswitch_gwca_ts_info *ts_info;
 
 		ts_info = kzalloc(sizeof(*ts_info), GFP_ATOMIC);
-		if (!ts_info) {
-			dma_unmap_single(ndev->dev.parent, dma_addr, skb->len, DMA_TO_DEVICE);
-			return -ENOMEM;
-		}
+		if (!ts_info)
+			goto err_unmap;
 
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
 		rdev->ts_tag++;
···
 
 	gq->cur = rswitch_next_queue_index(gq, true, 1);
 	rswitch_modify(rdev->addr, GWTRC(gq->index), 0, BIT(gq->index % 32));
+
+	return ret;
+
+err_unmap:
+	dma_unmap_single(ndev->dev.parent, dma_addr, skb->len, DMA_TO_DEVICE);
+
+err_kfree:
+	dev_kfree_skb_any(skb);
 
 	return ret;
 }

drivers/net/ethernet/stmicro/stmmac/mmc_core.c

···
 #define MMC_XGMAC_RX_DISCARD_OCT_GB	0x1b4
 #define MMC_XGMAC_RX_ALIGN_ERR_PKT	0x1bc
 
+#define MMC_XGMAC_TX_FPE_INTR_MASK	0x204
 #define MMC_XGMAC_TX_FPE_FRAG		0x208
 #define MMC_XGMAC_TX_HOLD_REQ		0x20c
+#define MMC_XGMAC_RX_FPE_INTR_MASK	0x224
 #define MMC_XGMAC_RX_PKT_ASSEMBLY_ERR	0x228
 #define MMC_XGMAC_RX_PKT_SMD_ERR	0x22c
 #define MMC_XGMAC_RX_PKT_ASSEMBLY_OK	0x230
···
 {
 	writel(0x0, mmcaddr + MMC_RX_INTR_MASK);
 	writel(0x0, mmcaddr + MMC_TX_INTR_MASK);
+	writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_TX_FPE_INTR_MASK);
+	writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_FPE_INTR_MASK);
 	writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_IPC_INTR_MASK);
 }
 

drivers/net/ethernet/wangxun/libwx/wx_lib.c

···
 	if (!pdev->msi_enabled && !pdev->msix_enabled)
 		return;
 
-	pci_free_irq_vectors(wx->pdev);
 	if (pdev->msix_enabled) {
 		kfree(wx->msix_entries);
 		wx->msix_entries = NULL;
 	}
+	pci_free_irq_vectors(wx->pdev);
 }
 EXPORT_SYMBOL(wx_reset_interrupt_capability);
 

drivers/net/netdevsim/bpf.c

···
 {
 	struct nsim_bpf_bound_prog *state;
 
-	if (!prog || !prog->aux->offload)
+	if (!prog || !bpf_prog_is_offloaded(prog->aux))
 		return;
 
 	state = prog->aux->offload->dev_priv;
···
 	if (!bpf->prog)
 		return 0;
 
-	if (!bpf->prog->aux->offload) {
+	if (!bpf_prog_is_offloaded(bpf->prog->aux)) {
 		NSIM_EA(bpf->extack, "xdpoffload of non-bound program");
 		return -EINVAL;
 	}

drivers/net/netkit.c

···
 		return -EACCES;
 	}
 
+	if (data[IFLA_NETKIT_PEER_INFO]) {
+		NL_SET_ERR_MSG_ATTR(extack, data[IFLA_NETKIT_PEER_INFO],
+				    "netkit peer info cannot be changed after device creation");
+		return -EINVAL;
+	}
+
 	if (data[IFLA_NETKIT_POLICY]) {
 		attr = data[IFLA_NETKIT_POLICY];
 		policy = nla_get_u32(attr);

drivers/net/wireless/ath/ath9k/Kconfig

···
 
 config ATH9K_DEBUGFS
 	bool "Atheros ath9k debugging"
-	depends on ATH9K && DEBUG_FS
-	select MAC80211_DEBUGFS
+	depends on ATH9K && DEBUG_FS && MAC80211_DEBUGFS
 	select ATH9K_COMMON_DEBUG
 	help
 	  Say Y, if you need access to ath9k's statistics for
···
 config ATH9K_STATION_STATISTICS
 	bool "Detailed station statistics"
 	depends on ATH9K && ATH9K_DEBUGFS && DEBUG_FS
-	select MAC80211_DEBUGFS
 	default n
 	help
 	  This option enables detailed statistics for association stations.

drivers/net/wireless/intel/iwlwifi/mvm/mld-sta.c

···
 			rcu_dereference_protected(mvm_sta->link[link_id],
 						  lockdep_is_held(&mvm->mutex));
 
-		if (WARN_ON(!link_conf || !mvm_link_sta))
+		if (WARN_ON(!link_conf || !mvm_link_sta)) {
+			ret = -EINVAL;
 			goto err;
+		}
 
 		ret = iwl_mvm_mld_cfg_sta(mvm, sta, vif, link_sta, link_conf,
 					  mvm_link_sta);

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

···
 	int ret, i, len, offset = 0;
 	u8 *clc_base = NULL, hw_encap = 0;
 
+	dev->phy.clc_chan_conf = 0xff;
 	if (mt7921_disable_clc ||
 	    mt76_is_usb(&dev->mt76))
 		return 0;

drivers/net/wireless/mediatek/mt76/mt7925/main.c

···
 static void
 mt7925_init_he_caps(struct mt792x_phy *phy, enum nl80211_band band,
 		    struct ieee80211_sband_iftype_data *data,
-			enum nl80211_iftype iftype)
+		    enum nl80211_iftype iftype)
 {
 	struct ieee80211_sta_he_cap *he_cap = &data->he_cap;
 	struct ieee80211_he_cap_elem *he_cap_elem = &he_cap->he_cap_elem;
···
 		IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
 		IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
 
-	switch (i) {
+	switch (iftype) {
 	case NL80211_IFTYPE_AP:
 		he_cap_elem->mac_cap_info[2] |=
 			IEEE80211_HE_MAC_CAP2_BSR;

fs/debugfs/file.c

···
 	struct debugfs_fsdata *fsd;
 	void *d_fsd;
 
+	/*
+	 * This could only happen if some debugfs user erroneously calls
+	 * debugfs_file_get() on a dentry that isn't even a file, let
+	 * them know about it.
+	 */
+	if (WARN_ON(!d_is_reg(dentry)))
+		return -EINVAL;
+
 	d_fsd = READ_ONCE(dentry->d_fsdata);
 	if (!((unsigned long)d_fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT)) {
 		fsd = d_fsd;
···
 			kfree(fsd);
 			fsd = READ_ONCE(dentry->d_fsdata);
 		}
+#ifdef CONFIG_LOCKDEP
+		fsd->lock_name = kasprintf(GFP_KERNEL, "debugfs:%pd", dentry);
+		lockdep_register_key(&fsd->key);
+		lockdep_init_map(&fsd->lockdep_map, fsd->lock_name ?: "debugfs",
+				 &fsd->key, 0);
+#endif
+		INIT_LIST_HEAD(&fsd->cancellations);
+		mutex_init(&fsd->cancellations_mtx);
 	}
 
 	/*
···
 
 	if (!refcount_inc_not_zero(&fsd->active_users))
 		return -EIO;
+
+	lock_map_acquire_read(&fsd->lockdep_map);
 
 	return 0;
 }
···
 {
 	struct debugfs_fsdata *fsd = READ_ONCE(dentry->d_fsdata);
 
+	lock_map_release(&fsd->lockdep_map);
+
 	if (refcount_dec_and_test(&fsd->active_users))
 		complete(&fsd->active_users_drained);
 }
 EXPORT_SYMBOL_GPL(debugfs_file_put);
+
+/**
+ * debugfs_enter_cancellation - enter a debugfs cancellation
+ * @file: the file being accessed
+ * @cancellation: the cancellation object, the cancel callback
+ *	inside of it must be initialized
+ *
+ * When a debugfs file is removed it needs to wait for all active
+ * operations to complete. However, the operation itself may need
+ * to wait for hardware or completion of some asynchronous process
+ * or similar. As such, it may need to be cancelled to avoid long
+ * waits or even deadlocks.
+ *
+ * This function can be used inside a debugfs handler that may
+ * need to be cancelled. As soon as this function is called, the
+ * cancellation's 'cancel' callback may be called, at which point
+ * the caller should proceed to call debugfs_leave_cancellation()
+ * and leave the debugfs handler function as soon as possible.
+ * Note that the 'cancel' callback is only ever called in the
+ * context of some kind of debugfs_remove().
+ *
+ * This function must be paired with debugfs_leave_cancellation().
+ */
+void debugfs_enter_cancellation(struct file *file,
+				struct debugfs_cancellation *cancellation)
+{
+	struct debugfs_fsdata *fsd;
+	struct dentry *dentry = F_DENTRY(file);
+
+	INIT_LIST_HEAD(&cancellation->list);
+
+	if (WARN_ON(!d_is_reg(dentry)))
+		return;
+
+	if (WARN_ON(!cancellation->cancel))
+		return;
+
+	fsd = READ_ONCE(dentry->d_fsdata);
+	if (WARN_ON(!fsd ||
+		    ((unsigned long)fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT)))
+		return;
+
+	mutex_lock(&fsd->cancellations_mtx);
+	list_add(&cancellation->list, &fsd->cancellations);
+	mutex_unlock(&fsd->cancellations_mtx);
+
+	/* if we're already removing wake it up to cancel */
+	if (d_unlinked(dentry))
+		complete(&fsd->active_users_drained);
+}
+EXPORT_SYMBOL_GPL(debugfs_enter_cancellation);
+
+/**
+ * debugfs_leave_cancellation - leave cancellation section
+ * @file: the file being accessed
+ * @cancellation: the cancellation previously registered with
+ *	debugfs_enter_cancellation()
+ *
+ * See the documentation of debugfs_enter_cancellation().
+ */
+void debugfs_leave_cancellation(struct file *file,
+				struct debugfs_cancellation *cancellation)
+{
+	struct debugfs_fsdata *fsd;
+	struct dentry *dentry = F_DENTRY(file);
+
+	if (WARN_ON(!d_is_reg(dentry)))
+		return;
+
+	fsd = READ_ONCE(dentry->d_fsdata);
+	if (WARN_ON(!fsd ||
+		    ((unsigned long)fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT)))
+		return;
+
+	mutex_lock(&fsd->cancellations_mtx);
+	if (!list_empty(&cancellation->list))
+		list_del(&cancellation->list);
+	mutex_unlock(&fsd->cancellations_mtx);
+}
+EXPORT_SYMBOL_GPL(debugfs_leave_cancellation);
 
 /*
  * Only permit access to world-readable files when the kernel is locked down.

fs/debugfs/inode.c

···
 
 static void debugfs_release_dentry(struct dentry *dentry)
 {
-	void *fsd = dentry->d_fsdata;
+	struct debugfs_fsdata *fsd = dentry->d_fsdata;
 
-	if (!((unsigned long)fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT))
-		kfree(dentry->d_fsdata);
+	if ((unsigned long)fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT)
+		return;
+
+	/* check it wasn't a dir (no fsdata) or automount (no real_fops) */
+	if (fsd && fsd->real_fops) {
+#ifdef CONFIG_LOCKDEP
+		lockdep_unregister_key(&fsd->key);
+		kfree(fsd->lock_name);
+#endif
+		WARN_ON(!list_empty(&fsd->cancellations));
+		mutex_destroy(&fsd->cancellations_mtx);
+	}
+
+	kfree(fsd);
 }
 
 static struct vfsmount *debugfs_automount(struct path *path)
 {
-	debugfs_automount_t f;
-	f = (debugfs_automount_t)path->dentry->d_fsdata;
-	return f(path->dentry, d_inode(path->dentry)->i_private);
+	struct debugfs_fsdata *fsd = path->dentry->d_fsdata;
+
+	return fsd->automount(path->dentry, d_inode(path->dentry)->i_private);
 }
 
 static const struct dentry_operations debugfs_dops = {
···
 					void *data)
 {
 	struct dentry *dentry = start_creating(name, parent);
+	struct debugfs_fsdata *fsd;
 	struct inode *inode;
 
 	if (IS_ERR(dentry))
 		return dentry;
 
+	fsd = kzalloc(sizeof(*fsd), GFP_KERNEL);
+	if (!fsd) {
+		failed_creating(dentry);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	fsd->automount = f;
+
 	if (!(debugfs_allow & DEBUGFS_ALLOW_API)) {
 		failed_creating(dentry);
+		kfree(fsd);
 		return ERR_PTR(-EPERM);
 	}
 
···
 	if (unlikely(!inode)) {
 		pr_err("out of free dentries, can not create automount '%s'\n",
 		       name);
+		kfree(fsd);
 		return failed_creating(dentry);
 	}
 
 	make_empty_dir_inode(inode);
 	inode->i_flags |= S_AUTOMOUNT;
 	inode->i_private = data;
-	dentry->d_fsdata = (void *)f;
+	dentry->d_fsdata = fsd;
 	/* directory inodes start off with i_nlink == 2 (for "." entry) */
 	inc_nlink(inode);
 	d_instantiate(dentry, inode);
···
 	fsd = READ_ONCE(dentry->d_fsdata);
 	if ((unsigned long)fsd & DEBUGFS_FSDATA_IS_REAL_FOPS_BIT)
 		return;
-	if (!refcount_dec_and_test(&fsd->active_users))
+
+	lock_map_acquire(&fsd->lockdep_map);
+	lock_map_release(&fsd->lockdep_map);
+
+	/* if we hit zero, just wait for all to finish */
+	if (!refcount_dec_and_test(&fsd->active_users)) {
 		wait_for_completion(&fsd->active_users_drained);
+		return;
+	}
+
+	/* if we didn't hit zero, try to cancel any we can */
+	while (refcount_read(&fsd->active_users)) {
+		struct debugfs_cancellation *c;
+
+		/*
+		 * Lock the cancellations. Note that the cancellations
+		 * structs are meant to be on the stack, so we need to
+		 * ensure we either use them here or don't touch them,
+		 * and debugfs_leave_cancellation() will wait for this
+		 * to be finished processing before exiting one. It may
+		 * of course win and remove the cancellation, but then
+		 * chances are we never even got into this bit, we only
+		 * do if the refcount isn't zero already.
+		 */
+		mutex_lock(&fsd->cancellations_mtx);
+		while ((c = list_first_entry_or_null(&fsd->cancellations,
+						     typeof(*c), list))) {
+			list_del_init(&c->list);
+			c->cancel(dentry, c->cancel_data);
+		}
+		mutex_unlock(&fsd->cancellations_mtx);
+
+		wait_for_completion(&fsd->active_users_drained);
+	}
 }
 
 static void remove_one(struct dentry *victim)

fs/debugfs/internal.h

···
 
 #ifndef _DEBUGFS_INTERNAL_H_
 #define _DEBUGFS_INTERNAL_H_
+#include <linux/lockdep.h>
+#include <linux/list.h>
 
 struct file_operations;
 
···
 
 struct debugfs_fsdata {
 	const struct file_operations *real_fops;
-	refcount_t active_users;
-	struct completion active_users_drained;
+	union {
+		/* automount_fn is used when real_fops is NULL */
+		debugfs_automount_t automount;
+		struct {
+			refcount_t active_users;
+			struct completion active_users_drained;
+#ifdef CONFIG_LOCKDEP
+			struct lockdep_map lockdep_map;
+			struct lock_class_key key;
+			char *lock_name;
+#endif
+
+			/* protect cancellations */
+			struct mutex cancellations_mtx;
+			struct list_head cancellations;
+		};
+	};
 };
 
 /*

include/linux/debugfs.h

···
 ssize_t debugfs_read_file_str(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos);
 
+/**
+ * struct debugfs_cancellation - cancellation data
+ * @list: internal, for keeping track
+ * @cancel: callback to call
+ * @cancel_data: extra data for the callback to call
+ */
+struct debugfs_cancellation {
+	struct list_head list;
+	void (*cancel)(struct dentry *, void *);
+	void *cancel_data;
+};
+
+void __acquires(cancellation)
+debugfs_enter_cancellation(struct file *file,
+			   struct debugfs_cancellation *cancellation);
+void __releases(cancellation)
+debugfs_leave_cancellation(struct file *file,
+			   struct debugfs_cancellation *cancellation);
+
 #else
 
 #include <linux/err.h>

include/linux/ieee80211.h

···
 static inline const struct ieee80211_he_6ghz_oper *
 ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
 {
-	const u8 *ret = (const void *)&he_oper->optional;
+	const u8 *ret;
 	u32 he_oper_params;
 
 	if (!he_oper)
 		return NULL;
+
+	ret = (const void *)&he_oper->optional;
 
 	he_oper_params = le32_to_cpu(he_oper->he_oper_params);
 

include/linux/skmsg.h

···
 	struct mutex			work_mutex;
 	struct sk_psock_work_state	work_state;
 	struct delayed_work		work;
+	struct sock			*sk_pair;
 	struct rcu_work			rwork;
 };
 

include/net/af_unix.h

···
 };
 
 #define unix_sk(ptr) container_of_const(ptr, struct unix_sock, sk)
+#define unix_peer(sk) (unix_sk(sk)->peer)
 
 #define peer_wait peer_wq.wait
 

include/net/cfg80211.h

···
  */
 void cfg80211_links_removed(struct net_device *dev, u16 link_mask);
 
+#ifdef CONFIG_CFG80211_DEBUGFS
+/**
+ * wiphy_locked_debugfs_read - do a locked read in debugfs
+ * @wiphy: the wiphy to use
+ * @file: the file being read
+ * @buf: the buffer to fill and then read from
+ * @bufsize: size of the buffer
+ * @userbuf: the user buffer to copy to
+ * @count: read count
+ * @ppos: read position
+ * @handler: the read handler to call (under wiphy lock)
+ * @data: additional data to pass to the read handler
+ */
+ssize_t wiphy_locked_debugfs_read(struct wiphy *wiphy, struct file *file,
+				  char *buf, size_t bufsize,
+				  char __user *userbuf, size_t count,
+				  loff_t *ppos,
+				  ssize_t (*handler)(struct wiphy *wiphy,
+						     struct file *file,
+						     char *buf,
+						     size_t bufsize,
+						     void *data),
+				  void *data);
+
+/**
+ * wiphy_locked_debugfs_write - do a locked write in debugfs
+ * @wiphy: the wiphy to use
+ * @file: the file being written to
+ * @buf: the buffer to copy the user data to
+ * @bufsize: size of the buffer
+ * @userbuf: the user buffer to copy from
+ * @count: read count
+ * @handler: the write handler to call (under wiphy lock)
+ * @data: additional data to pass to the write handler
+ */
+ssize_t wiphy_locked_debugfs_write(struct wiphy *wiphy, struct file *file,
+				   char *buf, size_t bufsize,
+				   const char __user *userbuf, size_t count,
+				   ssize_t (*handler)(struct wiphy *wiphy,
+						      struct file *file,
+						      char *buf,
+						      size_t count,
+						      void *data),
+				   void *data);
+#endif
+
 #endif /* __NET_CFG80211_H */

include/net/neighbour.h

···
 	struct rcu_head		rcu;
 	struct net_device	*dev;
 	netdevice_tracker	dev_tracker;
-	u8			primary_key[0];
+	u8			primary_key[];
 } __randomize_layout;
 
 struct neigh_ops {

kernel/bpf/memalloc.c

···
 		memcg = get_memcg(c);
 		old_memcg = set_active_memcg(memcg);
 		ret = __alloc(c, NUMA_NO_NODE, GFP_KERNEL | __GFP_NOWARN | __GFP_ACCOUNT);
+		if (ret)
+			*(struct bpf_mem_cache **)ret = c;
 		set_active_memcg(old_memcg);
 		mem_cgroup_put(memcg);
 	}

net/core/skmsg.c

···
 
 	if (psock->sk_redir)
 		sock_put(psock->sk_redir);
+	if (psock->sk_pair)
+		sock_put(psock->sk_pair);
 	sock_put(psock->sk);
 	kfree(psock);
 }

net/ethtool/netlink.c

···
 				ret = skb->len;
 			break;
 		}
+		ret = 0;
 	}
 	rtnl_unlock();
 

net/ipv4/igmp.c

···
 	int tv = get_random_u32_below(max_delay);
 
 	im->tm_running = 1;
-	if (!mod_timer(&im->timer, jiffies+tv+2))
-		refcount_inc(&im->refcnt);
+	if (refcount_inc_not_zero(&im->refcnt)) {
+		if (mod_timer(&im->timer, jiffies + tv + 2))
+			ip_ma_put(im);
+	}
 }
 
 static void igmp_gq_start_timer(struct in_device *in_dev)

net/mac80211/Kconfig

···
 
 config MAC80211_DEBUGFS
 	bool "Export mac80211 internals in DebugFS"
-	depends on MAC80211 && DEBUG_FS
+	depends on MAC80211 && CFG80211_DEBUGFS
 	help
 	  Select this to see extensive information about
 	  the internal state of mac80211 in debugfs.

net/mac80211/debugfs_netdev.c

···
 #include "debugfs_netdev.h"
 #include "driver-ops.h"
 
+struct ieee80211_if_read_sdata_data {
+	ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int);
+	struct ieee80211_sub_if_data *sdata;
+};
+
+static ssize_t ieee80211_if_read_sdata_handler(struct wiphy *wiphy,
+					       struct file *file,
+					       char *buf,
+					       size_t bufsize,
+					       void *data)
+{
+	struct ieee80211_if_read_sdata_data *d = data;
+
+	return d->format(d->sdata, buf, bufsize);
+}
+
 static ssize_t ieee80211_if_read_sdata(
-	struct ieee80211_sub_if_data *sdata,
+	struct file *file,
 	char __user *userbuf,
 	size_t count, loff_t *ppos,
 	ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int))
 {
+	struct ieee80211_sub_if_data *sdata = file->private_data;
+	struct ieee80211_if_read_sdata_data data = {
+		.format = format,
+		.sdata = sdata,
+	};
 	char buf[200];
-	ssize_t ret = -EINVAL;
 
-	wiphy_lock(sdata->local->hw.wiphy);
-	ret = (*format)(sdata, buf, sizeof(buf));
-	wiphy_unlock(sdata->local->hw.wiphy);
+	return wiphy_locked_debugfs_read(sdata->local->hw.wiphy,
+					 file, buf, sizeof(buf),
+					 userbuf, count, ppos,
+					 ieee80211_if_read_sdata_handler,
+					 &data);
+}
 
-	if (ret >= 0)
-		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+struct ieee80211_if_write_sdata_data {
+	ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int);
+	struct ieee80211_sub_if_data *sdata;
+};
 
-	return ret;
+static ssize_t ieee80211_if_write_sdata_handler(struct wiphy *wiphy,
+						struct file *file,
+						char *buf,
+						size_t count,
+						void *data)
+{
+	struct ieee80211_if_write_sdata_data *d = data;
+
+	return d->write(d->sdata, buf, count);
 }
 
 static ssize_t ieee80211_if_write_sdata(
-	struct ieee80211_sub_if_data *sdata,
+	struct file *file,
 	const char __user *userbuf,
 	size_t count, loff_t *ppos,
 	ssize_t (*write)(struct ieee80211_sub_if_data *sdata, const char *, int))
 {
+	struct ieee80211_sub_if_data *sdata = file->private_data;
+	struct ieee80211_if_write_sdata_data data = {
+		.write = write,
+		.sdata = sdata,
+	};
 	char buf[64];
-	ssize_t ret;
 
-	if (count >= sizeof(buf))
-		return -E2BIG;
+	return wiphy_locked_debugfs_write(sdata->local->hw.wiphy,
+					  file, buf, sizeof(buf),
+					  userbuf, count,
+					  ieee80211_if_write_sdata_handler,
+					  &data);
+}
 
-	if (copy_from_user(buf, userbuf, count))
-		return -EFAULT;
-	buf[count] = '\0';
+struct ieee80211_if_read_link_data {
+	ssize_t (*format)(const struct ieee80211_link_data *, char *, int);
+	struct ieee80211_link_data *link;
+};
 
-	wiphy_lock(sdata->local->hw.wiphy);
-	ret = (*write)(sdata, buf, count);
-	wiphy_unlock(sdata->local->hw.wiphy);
+static ssize_t ieee80211_if_read_link_handler(struct wiphy *wiphy,
+					      struct file *file,
+					      char *buf,
+					      size_t bufsize,
+					      void *data)
+{
+	struct ieee80211_if_read_link_data *d = data;
 
-	return ret;
+	return d->format(d->link, buf, bufsize);
 }
 
 static ssize_t ieee80211_if_read_link(
-	struct ieee80211_link_data *link,
+	struct file *file,
 	char __user *userbuf,
 	size_t count, loff_t *ppos,
 	ssize_t (*format)(const struct ieee80211_link_data *link, char *, int))
 {
+	struct ieee80211_link_data *link = file->private_data;
+	struct ieee80211_if_read_link_data data = {
+		.format = format,
+		.link = link,
+	};
 	char buf[200];
-	ssize_t ret = -EINVAL;
 
-	wiphy_lock(link->sdata->local->hw.wiphy);
-	ret = (*format)(link, buf, sizeof(buf));
-	wiphy_unlock(link->sdata->local->hw.wiphy);
+	return wiphy_locked_debugfs_read(link->sdata->local->hw.wiphy,
+					 file, buf, sizeof(buf),
+					 userbuf, count, ppos,
+					 ieee80211_if_read_link_handler,
+					 &data);
+}
 
-	if (ret >= 0)
-		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+struct ieee80211_if_write_link_data {
+	ssize_t (*write)(struct ieee80211_link_data *, const char *, int);
+	struct ieee80211_link_data *link;
+};
 
-	return ret;
+static ssize_t ieee80211_if_write_link_handler(struct wiphy *wiphy,
+					       struct file *file,
+					       char *buf,
+					       size_t count,
+					       void *data)
+{
+	struct ieee80211_if_write_sdata_data *d = data;
+
+	return d->write(d->sdata, buf, count);
 }
 
 static ssize_t ieee80211_if_write_link(
-	struct ieee80211_link_data *link,
+	struct file *file,
 	const char __user *userbuf,
 	size_t count, loff_t *ppos,
 	ssize_t (*write)(struct ieee80211_link_data *link, const char *, int))
 {
+	struct ieee80211_link_data *link = file->private_data;
+	struct ieee80211_if_write_link_data data = {
+		.write = write,
+		.link = link,
+	};
 	char buf[64];
-	ssize_t ret;
 
-	if (count >= sizeof(buf))
-		return -E2BIG;
-
-	if (copy_from_user(buf, userbuf, count))
-		return -EFAULT;
-	buf[count] = '\0';
-
-	wiphy_lock(link->sdata->local->hw.wiphy);
-	ret = (*write)(link, buf, count);
-	wiphy_unlock(link->sdata->local->hw.wiphy);
-
-	return ret;
+	return wiphy_locked_debugfs_write(link->sdata->local->hw.wiphy,
+					  file, buf, sizeof(buf),
+					  userbuf, count,
+					  ieee80211_if_write_link_handler,
+					  &data);
 }
 
 #define IEEE80211_IF_FMT(name, type, field, format_string)		\
···
 					char __user *userbuf,		\
 					size_t count, loff_t *ppos)	\
 {									\
-	return ieee80211_if_read_sdata(file->private_data,		\
+	return ieee80211_if_read_sdata(file,				\
 				       userbuf, count, ppos,		\
 				       ieee80211_if_fmt_##name);	\
 }
···
 					 const char __user *userbuf,	\
 					 size_t count, loff_t *ppos)	\
 {									\
-	return ieee80211_if_write_sdata(file->private_data, userbuf,	\
+	return ieee80211_if_write_sdata(file, userbuf,			\
 					count, ppos,			\
 					ieee80211_if_parse_##name);	\
 }
···
 					char __user *userbuf,		\
 					size_t count, loff_t *ppos)	\
 {									\
-	return ieee80211_if_read_link(file->private_data,		\
+	return ieee80211_if_read_link(file,				\
 				      userbuf, count, ppos,		\
 				      ieee80211_if_fmt_##name);	\
 }
···
 					 const char __user *userbuf,	\
 					 size_t count, loff_t *ppos)	\
 {									\
-	return ieee80211_if_write_link(file->private_data, userbuf,	\
+	return ieee80211_if_write_link(file, userbuf,			\
 				       count, ppos,			\
 				       ieee80211_if_parse_##name);	\
 }

net/mac80211/debugfs_sta.c

···
 STA_OPS_RW(aql);
 
 
-static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
-					size_t count, loff_t *ppos)
+static ssize_t sta_agg_status_do_read(struct wiphy *wiphy, struct file *file,
+				      char *buf, size_t bufsz, void *data)
 {
-	char *buf, *p;
-	ssize_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
+	struct sta_info *sta = data;
+	char *p = buf;
 	int i;
-	struct sta_info *sta = file->private_data;
 	struct tid_ampdu_rx *tid_rx;
 	struct tid_ampdu_tx *tid_tx;
-	ssize_t ret;
-
-	buf = kzalloc(bufsz, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-	p = buf;
-
-	rcu_read_lock();
 
 	p += scnprintf(p, bufsz + buf - p, "next dialog_token: %#02x\n",
 			sta->ampdu_mlme.dialog_token_allocator + 1);
···
 	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 		bool tid_rx_valid;
 
-		tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
-		tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
+		tid_rx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_rx[i]);
+		tid_tx = wiphy_dereference(wiphy, sta->ampdu_mlme.tid_tx[i]);
 		tid_rx_valid = test_bit(i, sta->ampdu_mlme.agg_session_valid);
 
 		p += scnprintf(p, bufsz + buf - p, "%02d", i);
···
 				tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
 		p += scnprintf(p, bufsz + buf - p, "\n");
 	}
-	rcu_read_unlock();
 
-	ret = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+	return p - buf;
+}
+
+static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
+				   size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct wiphy *wiphy = sta->local->hw.wiphy;
+	size_t bufsz = 71 + IEEE80211_NUM_TIDS * 40;
+	char *buf = kmalloc(bufsz, GFP_KERNEL);
+	ssize_t ret;
+
+	if (!buf)
+		return -ENOMEM;
+
+	ret = wiphy_locked_debugfs_read(wiphy, file, buf, bufsz,
+					userbuf, count, ppos,
+					sta_agg_status_do_read, sta);
 	kfree(buf);
+
 	return ret;
 }
 
-static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
-				    size_t count, loff_t *ppos)
+static ssize_t sta_agg_status_do_write(struct wiphy *wiphy, struct file *file,
+				       char *buf, size_t count, void *data)
 {
-	char _buf[25] = {}, *buf = _buf;
-	struct sta_info *sta = file->private_data;
+	struct sta_info *sta = data;
 	bool start, tx;
 	unsigned long tid;
-	char *pos;
+	char *pos = buf;
 	int ret, timeout = 5000;
 
-	if (count > sizeof(_buf))
-		return -EINVAL;
-
-	if (copy_from_user(buf, userbuf, count))
-		return -EFAULT;
-
-	buf[sizeof(_buf) - 1] = '\0';
-	pos = buf;
 	buf = strsep(&pos, " ");
 	if (!buf)
 		return -EINVAL;
···
 	if (ret || tid >= IEEE80211_NUM_TIDS)
 		return -EINVAL;
 
-	wiphy_lock(sta->local->hw.wiphy);
 	if (tx) {
 		if (start)
 			ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
···
 					       3, true);
 		ret = 0;
 	}
-	wiphy_unlock(sta->local->hw.wiphy);
 
 	return ret ?: count;
+}
+
+static ssize_t sta_agg_status_write(struct file *file,
+				    const char __user *userbuf,
+				    size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct wiphy *wiphy = sta->local->hw.wiphy;
+	char _buf[26];
+
+	return wiphy_locked_debugfs_write(wiphy, file, _buf, sizeof(_buf),
+					  userbuf, count,
+					  sta_agg_status_do_write, sta);
 }
 STA_OPS_RW(agg_status);
 

net/mac80211/driver-ops.h

···
 static inline struct ieee80211_sub_if_data *
 get_bss_sdata(struct ieee80211_sub_if_data *sdata)
 {
-	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+	if (sdata && sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
 				     u.ap);
 
···
 			     struct ieee80211_sub_if_data *sdata,
 			     u32 queues, bool drop)
 {
-	struct ieee80211_vif *vif = sdata ? &sdata->vif : NULL;
+	struct ieee80211_vif *vif;
 
 	might_sleep();
 	lockdep_assert_wiphy(local->hw.wiphy);
+
+	sdata = get_bss_sdata(sdata);
+	vif = sdata ? &sdata->vif : NULL;
 
 	if (sdata && !check_sdata_in_driver(sdata))
 		return;
···
 {
 	might_sleep();
 	lockdep_assert_wiphy(local->hw.wiphy);
+
+	sdata = get_bss_sdata(sdata);
 
 	if (sdata && !check_sdata_in_driver(sdata))
 		return;

net/mac80211/ht.c

···
 	case NL80211_CHAN_WIDTH_80:
 	case NL80211_CHAN_WIDTH_80P80:
 	case NL80211_CHAN_WIDTH_160:
+	case NL80211_CHAN_WIDTH_320:
 		bw = ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
 				IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20;
 		break;

net/mptcp/options.c

···
 			mp_opt->suboptions |= OPTION_MPTCP_DSS;
 			mp_opt->use_map = 1;
 			mp_opt->mpc_map = 1;
+			mp_opt->use_ack = 0;
 			mp_opt->data_len = get_unaligned_be16(ptr);
 			ptr += 2;
 		}

net/unix/af_unix.c

···
 }
 #endif /* CONFIG_SECURITY_NETWORK */
 
-#define unix_peer(sk) (unix_sk(sk)->peer)
-
 static inline int unix_our_peer(struct sock *sk, struct sock *osk)
 {
 	return unix_peer(osk) == sk;

net/unix/unix_bpf.c

···
 
 int unix_stream_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore)
 {
+	struct sock *sk_pair;
+
 	if (restore) {
 		sk->sk_write_space = psock->saved_write_space;
 		sock_replace_proto(sk, psock->sk_proto);
 		return 0;
 	}
 
+	sk_pair = unix_peer(sk);
+	sock_hold(sk_pair);
+	psock->sk_pair = sk_pair;
 	unix_stream_bpf_check_needs_rebuild(psock->sk_proto);
 	sock_replace_proto(sk, &unix_stream_bpf_prot);
 	return 0;

net/wireless/core.c

···
 		return err;
 	}
 
+	wiphy_lock(&rdev->wiphy);
 	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 		if (!wdev->netdev)
 			continue;
 		nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
 	}
 
-	wiphy_lock(&rdev->wiphy);
 	nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
 
 	wiphy_net_set(&rdev->wiphy, net);
···
 	WARN_ON(err);
 
 	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
-	wiphy_unlock(&rdev->wiphy);
 
 	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 		if (!wdev->netdev)
 			continue;
 		nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
 	}
+	wiphy_unlock(&rdev->wiphy);
 
 	return 0;
 }
···
 {
 	struct cfg80211_registered_device *rdev = data;
 
+	wiphy_lock(&rdev->wiphy);
 	rdev_rfkill_poll(rdev);
+	wiphy_unlock(&rdev->wiphy);
 }
 
 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,

net/wireless/core.h

···
 	u32 rssi_hyst;
 	s32 last_rssi_event_value;
 	enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
+	bool use_range_api;
 	int n_rssi_thresholds;
 	s32 rssi_thresholds[] __counted_by(n_rssi_thresholds);
 };

net/wireless/debugfs.c

···
  *
  * Copyright 2009	Luis R. Rodriguez <[e-mail]>
  * Copyright 2007	Johannes Berg <[e-mail]>
+ * Copyright (C) 2023 Intel Corporation
  */
 
 #include <linux/slab.h>
···
 	DEBUGFS_ADD(long_retry_limit);
 	DEBUGFS_ADD(ht40allow_map);
 }
+
+struct debugfs_read_work {
+	struct wiphy_work work;
+	ssize_t (*handler)(struct wiphy *wiphy,
+			   struct file *file,
+			   char *buf,
+			   size_t count,
+			   void *data);
+	struct wiphy *wiphy;
+	struct file *file;
+	char *buf;
+	size_t bufsize;
+	void *data;
+	ssize_t ret;
+	struct completion completion;
+};
+
+static void wiphy_locked_debugfs_read_work(struct wiphy *wiphy,
+					   struct wiphy_work *work)
+{
+	struct debugfs_read_work *w = container_of(work, typeof(*w), work);
+
+	w->ret = w->handler(w->wiphy, w->file, w->buf, w->bufsize, w->data);
+	complete(&w->completion);
+}
+
+static void wiphy_locked_debugfs_read_cancel(struct dentry *dentry,
+					     void *data)
+{
+	struct debugfs_read_work *w = data;
+
+	wiphy_work_cancel(w->wiphy, &w->work);
+	complete(&w->completion);
+}
+
+ssize_t wiphy_locked_debugfs_read(struct wiphy *wiphy, struct file *file,
+				  char *buf, size_t bufsize,
+				  char __user *userbuf, size_t count,
+				  loff_t *ppos,
+				  ssize_t (*handler)(struct wiphy *wiphy,
+						     struct file *file,
+						     char *buf,
+						     size_t bufsize,
+						     void *data),
+				  void *data)
+{
+	struct debugfs_read_work work = {
+		.handler = handler,
+		.wiphy = wiphy,
+		.file = file,
+		.buf = buf,
+		.bufsize = bufsize,
+		.data = data,
+		.ret = -ENODEV,
+		.completion = COMPLETION_INITIALIZER_ONSTACK(work.completion),
+	};
+	struct debugfs_cancellation cancellation = {
+		.cancel = wiphy_locked_debugfs_read_cancel,
+		.cancel_data = &work,
+	};
+
+	/* don't leak stack data or whatever */
+	memset(buf, 0, bufsize);
+
+	wiphy_work_init(&work.work, wiphy_locked_debugfs_read_work);
+	wiphy_work_queue(wiphy, &work.work);
+
+	debugfs_enter_cancellation(file, &cancellation);
+	wait_for_completion(&work.completion);
+	debugfs_leave_cancellation(file, &cancellation);
+
+	if (work.ret < 0)
+		return work.ret;
+
+	if (WARN_ON(work.ret > bufsize))
+		return -EINVAL;
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, work.ret);
+}
+EXPORT_SYMBOL_GPL(wiphy_locked_debugfs_read);
+
+struct debugfs_write_work {
+	struct wiphy_work work;
+	ssize_t (*handler)(struct wiphy *wiphy,
+			   struct file *file,
+			   char *buf,
+			   size_t count,
+			   void *data);
+	struct wiphy *wiphy;
+	struct file *file;
+	char *buf;
+	size_t count;
+	void *data;
+	ssize_t ret;
+	struct completion completion;
+};
+
+static void wiphy_locked_debugfs_write_work(struct wiphy *wiphy,
+					    struct wiphy_work *work)
+{
+	struct debugfs_write_work *w = container_of(work, typeof(*w), work);
+
+	w->ret = w->handler(w->wiphy, w->file, w->buf, w->count, w->data);
+	complete(&w->completion);
+}
+
+static void wiphy_locked_debugfs_write_cancel(struct dentry *dentry,
+					      void *data)
+{
+	struct debugfs_write_work *w = data;
+
+	wiphy_work_cancel(w->wiphy, &w->work);
+	complete(&w->completion);
+}
+
+ssize_t wiphy_locked_debugfs_write(struct wiphy *wiphy,
+				   struct file *file, char *buf, size_t bufsize,
+				   const char __user *userbuf, size_t count,
+				   ssize_t (*handler)(struct wiphy *wiphy,
+						      struct file *file,
+						      char *buf,
+						      size_t count,
+						      void *data),
+				   void *data)
+{
+	struct debugfs_write_work work = {
+		.handler = handler,
+		.wiphy = wiphy,
+		.file = file,
+		.buf = buf,
+		.count = count,
+		.data = data,
+		.ret = -ENODEV,
+		.completion = COMPLETION_INITIALIZER_ONSTACK(work.completion),
+	};
+	struct debugfs_cancellation cancellation = {
+		.cancel = wiphy_locked_debugfs_write_cancel,
+		.cancel_data = &work,
+	};
+
+	/* mostly used for strings so enforce NUL-termination for safety */
+	if (count >= bufsize)
+		return -EINVAL;
+
+	memset(buf, 0, bufsize);
+
+	if (copy_from_user(buf, userbuf, count))
+		return -EFAULT;
+
+	wiphy_work_init(&work.work, wiphy_locked_debugfs_write_work);
+	wiphy_work_queue(wiphy, &work.work);
+
+	debugfs_enter_cancellation(file, &cancellation);
+	wait_for_completion(&work.completion);
+	debugfs_leave_cancellation(file, &cancellation);
+
+	return work.ret;
+}
+EXPORT_SYMBOL_GPL(wiphy_locked_debugfs_write);

net/wireless/nl80211.c

···
 	struct net_device *dev = wdev->netdev;
 	void *hdr;
 
+	lockdep_assert_wiphy(&rdev->wiphy);
+
 	WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
 		cmd != NL80211_CMD_DEL_INTERFACE &&
 		cmd != NL80211_CMD_SET_INTERFACE);
···
 
 		if_idx = 0;
 
+		wiphy_lock(&rdev->wiphy);
 		list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 			if (if_idx < if_start) {
 				if_idx++;
···
 					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
 					       rdev, wdev,
 					       NL80211_CMD_NEW_INTERFACE) < 0) {
+				wiphy_unlock(&rdev->wiphy);
 				goto out;
 			}
 			if_idx++;
 		}
+		wiphy_unlock(&rdev->wiphy);
 
 		wp_idx++;
 	}
···
 	int i, n, low_index;
 	int err;
 
-	/* RSSI reporting disabled? */
-	if (!cqm_config)
-		return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
-
 	/*
 	 * Obtain current RSSI value if possible, if not and no RSSI threshold
 	 * event has been received yet, we should receive an event after a
···
 	    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
 		return -EOPNOTSUPP;
 
-	if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
-		if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
-			return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
-
-		return rdev_set_cqm_rssi_config(rdev, dev,
-						thresholds[0], hysteresis);
-	}
-
-	if (!wiphy_ext_feature_isset(&rdev->wiphy,
-				     NL80211_EXT_FEATURE_CQM_RSSI_LIST))
-		return -EOPNOTSUPP;
-
 	if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
 		n_thresholds = 0;
 
 	old = wiphy_dereference(wdev->wiphy, wdev->cqm_config);
+
+	/* if already disabled just succeed */
+	if (!n_thresholds && !old)
+		return 0;
+
+	if (n_thresholds > 1) {
+		if (!wiphy_ext_feature_isset(&rdev->wiphy,
+					     NL80211_EXT_FEATURE_CQM_RSSI_LIST) ||
+		    !rdev->ops->set_cqm_rssi_range_config)
+			return -EOPNOTSUPP;
+	} else {
+		if (!rdev->ops->set_cqm_rssi_config)
+			return -EOPNOTSUPP;
+	}
 
 	if (n_thresholds) {
 		cqm_config = kzalloc(struct_size(cqm_config, rssi_thresholds,
···
 		memcpy(cqm_config->rssi_thresholds, thresholds,
 		       flex_array_size(cqm_config, rssi_thresholds,
 				       n_thresholds));
+		cqm_config->use_range_api = n_thresholds > 1 ||
+					    !rdev->ops->set_cqm_rssi_config;
 
 		rcu_assign_pointer(wdev->cqm_config, cqm_config);
+
+		if (cqm_config->use_range_api)
+			err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config);
+		else
+			err = rdev_set_cqm_rssi_config(rdev, dev,
+						       thresholds[0],
+						       hysteresis);
 	} else {
 		RCU_INIT_POINTER(wdev->cqm_config, NULL);
+		/* if enabled as range also disable via range */
+		if (old->use_range_api)
+			err = rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
+		else
+			err = rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
 	}
 
-	err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config);
 	if (err) {
 		rcu_assign_pointer(wdev->cqm_config, old);
 		kfree_rcu(cqm_config, rcu_head);
···
 	s32 rssi_level;
 
 	cqm_config = wiphy_dereference(wdev->wiphy, wdev->cqm_config);
-	if (!wdev->cqm_config)
+	if (!cqm_config)
 		return;
 
-	cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config);
+	if (cqm_config->use_range_api)
+		cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config);
 
 	rssi_level = cqm_config->last_rssi_event_value;
 	rssi_event = cqm_config->last_rssi_event_type;

tools/net/ynl/generated/devlink-user.c

···
 
 int devlink_port_set(struct ynl_sock *ys, struct devlink_port_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.port_function)
 		devlink_dl_port_function_put(nlh, DEVLINK_ATTR_PORT_FUNCTION, &req->port_function);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_port_del(struct ynl_sock *ys, struct devlink_port_del_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.port_index)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX, req->port_index);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_port_split(struct ynl_sock *ys, struct devlink_port_split_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.port_split_count)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_SPLIT_COUNT, req->port_split_count);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_port_unsplit(struct ynl_sock *ys,
 			 struct devlink_port_unsplit_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.port_index)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX, req->port_index);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_sb_pool_set(struct ynl_sock *ys,
 			struct devlink_sb_pool_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sb_pool_size)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_POOL_SIZE, req->sb_pool_size);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_sb_port_pool_set(struct ynl_sock *ys,
 			     struct devlink_sb_port_pool_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sb_threshold)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_THRESHOLD, req->sb_threshold);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_sb_tc_pool_bind_set(struct ynl_sock *ys,
 				struct devlink_sb_tc_pool_bind_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sb_threshold)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_THRESHOLD, req->sb_threshold);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_sb_occ_snapshot(struct ynl_sock *ys,
 			    struct devlink_sb_occ_snapshot_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sb_index)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_INDEX, req->sb_index);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_sb_occ_max_clear(struct ynl_sock *ys,
 			     struct devlink_sb_occ_max_clear_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sb_index)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_SB_INDEX, req->sb_index);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_eswitch_set(struct ynl_sock *ys,
 			struct devlink_eswitch_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.eswitch_encap_mode)
 		mnl_attr_put_u8(nlh, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, req->eswitch_encap_mode);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_dpipe_table_counters_set(struct ynl_sock *ys,
 				     struct devlink_dpipe_table_counters_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.dpipe_table_counters_enabled)
 		mnl_attr_put_u8(nlh, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, req->dpipe_table_counters_enabled);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_resource_set(struct ynl_sock *ys,
 			 struct devlink_resource_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.resource_size)
 		mnl_attr_put_u64(nlh, DEVLINK_ATTR_RESOURCE_SIZE, req->resource_size);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_param_set(struct ynl_sock *ys, struct devlink_param_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.param_value_cmode)
 		mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_CMODE, req->param_value_cmode);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_region_del(struct ynl_sock *ys, struct devlink_region_del_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.region_snapshot_id)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_REGION_SNAPSHOT_ID, req->region_snapshot_id);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_port_param_set(struct ynl_sock *ys,
 			   struct devlink_port_param_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.port_index)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX, req->port_index);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_health_reporter_set(struct ynl_sock *ys,
 				struct devlink_health_reporter_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.health_reporter_auto_dump)
 		mnl_attr_put_u8(nlh, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_DUMP, req->health_reporter_auto_dump);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_health_reporter_recover(struct ynl_sock *ys,
 				    struct devlink_health_reporter_recover_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.health_reporter_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME, req->health_reporter_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_health_reporter_diagnose(struct ynl_sock *ys,
 				     struct devlink_health_reporter_diagnose_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.health_reporter_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME, req->health_reporter_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_health_reporter_dump_clear(struct ynl_sock *ys,
 				       struct devlink_health_reporter_dump_clear_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.health_reporter_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME, req->health_reporter_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_flash_update(struct ynl_sock *ys,
 			 struct devlink_flash_update_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.flash_update_overwrite_mask)
 		mnl_attr_put(nlh, DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK, sizeof(struct nla_bitfield32), &req->flash_update_overwrite_mask);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_trap_set(struct ynl_sock *ys, struct devlink_trap_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.trap_action)
 		mnl_attr_put_u8(nlh, DEVLINK_ATTR_TRAP_ACTION, req->trap_action);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_trap_group_set(struct ynl_sock *ys,
 			   struct devlink_trap_group_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.trap_policer_id)
 		mnl_attr_put_u32(nlh, DEVLINK_ATTR_TRAP_POLICER_ID, req->trap_policer_id);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_trap_policer_set(struct ynl_sock *ys,
 			     struct devlink_trap_policer_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.trap_policer_burst)
 		mnl_attr_put_u64(nlh, DEVLINK_ATTR_TRAP_POLICER_BURST, req->trap_policer_burst);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_health_reporter_test(struct ynl_sock *ys,
 				 struct devlink_health_reporter_test_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.health_reporter_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME, req->health_reporter_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_rate_set(struct ynl_sock *ys, struct devlink_rate_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.rate_parent_node_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, req->rate_parent_node_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_rate_new(struct ynl_sock *ys, struct devlink_rate_new_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.rate_parent_node_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_RATE_PARENT_NODE_NAME, req->rate_parent_node_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int devlink_rate_del(struct ynl_sock *ys, struct devlink_rate_del_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.rate_node_name_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_RATE_NODE_NAME, req->rate_node_name);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_linecard_set(struct ynl_sock *ys,
 			 struct devlink_linecard_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.linecard_type_len)
 		mnl_attr_put_strz(nlh, DEVLINK_ATTR_LINECARD_TYPE, req->linecard_type);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int devlink_selftests_run(struct ynl_sock *ys,
 			  struct devlink_selftests_run_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.selftests)
 		devlink_dl_selftest_id_put(nlh, DEVLINK_ATTR_SELFTESTS, &req->selftests);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 

tools/net/ynl/generated/ethtool-user.c

···
 int ethtool_linkinfo_set(struct ynl_sock *ys,
 			 struct ethtool_linkinfo_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.transceiver)
 		mnl_attr_put_u8(nlh, ETHTOOL_A_LINKINFO_TRANSCEIVER, req->transceiver);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_linkmodes_set(struct ynl_sock *ys,
 			  struct ethtool_linkmodes_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.rate_matching)
 		mnl_attr_put_u8(nlh, ETHTOOL_A_LINKMODES_RATE_MATCHING, req->rate_matching);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_debug_set(struct ynl_sock *ys, struct ethtool_debug_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.msgmask)
 		ethtool_bitset_put(nlh, ETHTOOL_A_DEBUG_MSGMASK, &req->msgmask);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_wol_set(struct ynl_sock *ys, struct ethtool_wol_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.sopass_len)
 		mnl_attr_put(nlh, ETHTOOL_A_WOL_SOPASS, req->_present.sopass_len, req->sopass);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_privflags_set(struct ynl_sock *ys,
 			  struct ethtool_privflags_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.flags)
 		ethtool_bitset_put(nlh, ETHTOOL_A_PRIVFLAGS_FLAGS, &req->flags);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_rings_set(struct ynl_sock *ys, struct ethtool_rings_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.tx_push_buf_len_max)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_RINGS_TX_PUSH_BUF_LEN_MAX, req->tx_push_buf_len_max);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_channels_set(struct ynl_sock *ys,
 			 struct ethtool_channels_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.combined_count)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_CHANNELS_COMBINED_COUNT, req->combined_count);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_coalesce_set(struct ynl_sock *ys,
 			 struct ethtool_coalesce_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.tx_aggr_time_usecs)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS, req->tx_aggr_time_usecs);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_pause_set(struct ynl_sock *ys, struct ethtool_pause_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.stats_src)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_PAUSE_STATS_SRC, req->stats_src);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_eee_set(struct ynl_sock *ys, struct ethtool_eee_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.tx_lpi_timer)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_EEE_TX_LPI_TIMER, req->tx_lpi_timer);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_cable_test_act(struct ynl_sock *ys,
 			   struct ethtool_cable_test_act_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.header)
 		ethtool_header_put(nlh, ETHTOOL_A_CABLE_TEST_HEADER, &req->header);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_cable_test_tdr_act(struct ynl_sock *ys,
 			       struct ethtool_cable_test_tdr_act_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.header)
 		ethtool_header_put(nlh, ETHTOOL_A_CABLE_TEST_TDR_HEADER, &req->header);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_fec_set(struct ynl_sock *ys, struct ethtool_fec_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.stats)
 		ethtool_fec_stat_put(nlh, ETHTOOL_A_FEC_STATS, &req->stats);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_module_set(struct ynl_sock *ys, struct ethtool_module_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.power_mode)
 		mnl_attr_put_u8(nlh, ETHTOOL_A_MODULE_POWER_MODE, req->power_mode);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_pse_set(struct ynl_sock *ys, struct ethtool_pse_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.pw_d_status)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_PODL_PSE_PW_D_STATUS, req->pw_d_status);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 int ethtool_plca_set_cfg(struct ynl_sock *ys,
 			 struct ethtool_plca_set_cfg_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.burst_tmr)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_PLCA_BURST_TMR, req->burst_tmr);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int ethtool_mm_set(struct ynl_sock *ys, struct ethtool_mm_set_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.tx_min_frag_size)
 		mnl_attr_put_u32(nlh, ETHTOOL_A_MM_TX_MIN_FRAG_SIZE, req->tx_min_frag_size);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 

tools/net/ynl/generated/fou-user.c

···
 
 int fou_add(struct ynl_sock *ys, struct fou_add_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.ifindex)
 		mnl_attr_put_u32(nlh, FOU_ATTR_IFINDEX, req->ifindex);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 
···
 
 int fou_del(struct ynl_sock *ys, struct fou_del_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	if (req->_present.peer_v6_len)
 		mnl_attr_put(nlh, FOU_ATTR_PEER_V6, req->_present.peer_v6_len, req->peer_v6);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 

tools/net/ynl/generated/handshake-user.c

···
 
 int handshake_done(struct ynl_sock *ys, struct handshake_done_req *req)
 {
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
 	struct nlmsghdr *nlh;
 	int err;
 
···
 	for (unsigned int i = 0; i < req->n_remote_auth; i++)
 		mnl_attr_put_u32(nlh, HANDSHAKE_A_DONE_REMOTE_AUTH, req->remote_auth[i]);
 
-	err = ynl_exec(ys, nlh, NULL);
+	err = ynl_exec(ys, nlh, &yrs);
 	if (err < 0)
 		return -1;
 

tools/net/ynl/ynl-gen-c.py

···
     ret_ok = '0'
     ret_err = '-1'
     direction = "request"
-    local_vars = ['struct nlmsghdr *nlh;',
+    local_vars = ['struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };',
+                  'struct nlmsghdr *nlh;',
                   'int err;']
 
     if 'reply' in ri.op[ri.op_mode]:
         ret_ok = 'rsp'
         ret_err = 'NULL'
-        local_vars += [f'{type_name(ri, rdir(direction))} *rsp;',
-                       'struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };']
+        local_vars += [f'{type_name(ri, rdir(direction))} *rsp;']
 
     print_prototype(ri, direction, terminate=False)
     ri.cw.block_start()
···
         attr.attr_put(ri, "req")
     ri.cw.nl()
 
-    parse_arg = "NULL"
     if 'reply' in ri.op[ri.op_mode]:
         ri.cw.p('rsp = calloc(1, sizeof(*rsp));')
         ri.cw.p('yrs.yarg.data = rsp;')
···
         else:
             ri.cw.p(f'yrs.rsp_cmd = {ri.op.rsp_value};')
         ri.cw.nl()
-        parse_arg = '&yrs'
-    ri.cw.p(f"err = ynl_exec(ys, nlh, {parse_arg});")
+    ri.cw.p("err = ynl_exec(ys, nlh, &yrs);")
     ri.cw.p('if (err < 0)')
     if 'reply' in ri.op[ri.op_mode]:
         ri.cw.p('goto err_free;')

tools/testing/selftests/bpf/prog_tests/sockmap_listen.c

···
 }
 
 static void pairs_redir_to_connected(int cli0, int peer0, int cli1, int peer1,
-				     int sock_mapfd, int verd_mapfd, enum redir_mode mode)
+				     int sock_mapfd, int nop_mapfd,
+				     int verd_mapfd, enum redir_mode mode)
 {
 	const char *log_prefix = redir_mode_str(mode);
 	unsigned int pass;
···
 	err = add_to_sockmap(sock_mapfd, peer0, peer1);
 	if (err)
 		return;
+
+	if (nop_mapfd >= 0) {
+		err = add_to_sockmap(nop_mapfd, cli0, cli1);
+		if (err)
+			return;
+	}
 
 	n = write(cli1, "a", 1);
 	if (n < 0)
···
 		goto close0;
 	c1 = sfd[0], p1 = sfd[1];
 
-	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode);
+	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, -1, verd_mapfd, mode);
 
 	xclose(c1);
 	xclose(p1);
···
 	if (err)
 		goto close_cli0;
 
-	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode);
+	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, -1, verd_mapfd, mode);
 
 	xclose(c1);
 	xclose(p1);
···
 	if (err)
 		goto close;
 
-	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode);
+	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, -1, verd_mapfd, mode);
 
 	xclose(c1);
 	xclose(p1);
···
 	xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_VERDICT);
 }
 
-static void unix_inet_redir_to_connected(int family, int type, int sock_mapfd,
-					int verd_mapfd, enum redir_mode mode)
+static void unix_inet_redir_to_connected(int family, int type,
+					int sock_mapfd, int nop_mapfd,
+					int verd_mapfd,
+					enum redir_mode mode)
 {
 	int c0, c1, p0, p1;
 	int sfd[2];
···
 		goto close_cli0;
 	c1 = sfd[0], p1 = sfd[1];
 
-	pairs_redir_to_connected(c0, p0, c1, p1, sock_mapfd, verd_mapfd, mode);
+	pairs_redir_to_connected(c0, p0, c1, p1,
+				 sock_mapfd, nop_mapfd, verd_mapfd, mode);
 
 	xclose(c1);
 	xclose(p1);
···
 					    struct bpf_map *inner_map, int family)
 {
 	int verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+	int nop_map = bpf_map__fd(skel->maps.nop_map);
 	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
 	int sock_map = bpf_map__fd(inner_map);
 	int err;
···
 		return;
 
 	skel->bss->test_ingress = false;
-	unix_inet_redir_to_connected(family, SOCK_DGRAM, sock_map, verdict_map,
+	unix_inet_redir_to_connected(family, SOCK_DGRAM,
+				     sock_map, -1, verdict_map,
 				     REDIR_EGRESS);
-	unix_inet_redir_to_connected(family, SOCK_STREAM, sock_map, verdict_map,
+	unix_inet_redir_to_connected(family, SOCK_DGRAM,
+				     sock_map, -1, verdict_map,
+				     REDIR_EGRESS);
+
+	unix_inet_redir_to_connected(family, SOCK_DGRAM,
+				     sock_map, nop_map, verdict_map,
+				     REDIR_EGRESS);
+	unix_inet_redir_to_connected(family, SOCK_STREAM,
+				     sock_map, nop_map, verdict_map,
 				     REDIR_EGRESS);
 	skel->bss->test_ingress = true;
-	unix_inet_redir_to_connected(family, SOCK_DGRAM, sock_map, verdict_map,
+	unix_inet_redir_to_connected(family, SOCK_DGRAM,
+				     sock_map, -1, verdict_map,
 				     REDIR_INGRESS);
-	unix_inet_redir_to_connected(family, SOCK_STREAM, sock_map, verdict_map,
+	unix_inet_redir_to_connected(family, SOCK_STREAM,
+				     sock_map, -1, verdict_map,
+				     REDIR_INGRESS);
+
+	unix_inet_redir_to_connected(family, SOCK_DGRAM,
+				     sock_map, nop_map, verdict_map,
+				     REDIR_INGRESS);
+	unix_inet_redir_to_connected(family, SOCK_STREAM,
+				     sock_map, nop_map, verdict_map,
 				     REDIR_INGRESS);
 
 	xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_VERDICT);

tools/testing/selftests/bpf/progs/test_sockmap_listen.c

···
 } sock_map SEC(".maps");
 
 struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} nop_map SEC(".maps");
+
+struct {
 	__uint(type, BPF_MAP_TYPE_SOCKHASH);
 	__uint(max_entries, 2);
 	__type(key, __u32);

tools/testing/selftests/net/af_unix/diag_uid.c

···
 		.msg_iov = &iov,
 		.msg_iovlen = 1
 	};
-	struct unix_diag_req *udr;
 	struct nlmsghdr *nlh;
 	int ret;
 

tools/testing/selftests/net/cmsg_sender.c

···
 {
 	struct addrinfo hints, *ai;
 	struct iovec iov[1];
+	unsigned char *buf;
 	struct msghdr msg;
 	char cbuf[1024];
-	char *buf;
 	int err;
 	int fd;
 

tools/testing/selftests/net/ipsec.c

···
 
 int main(int argc, char **argv)
 {
-	unsigned int nr_process = 1;
+	long nr_process = 1;
 	int route_sock = -1, ret = KSFT_SKIP;
 	int test_desc_fd[2];
 	uint32_t route_seq;
···
 			exit_usage(argv);
 		}
 
-		if (nr_process > MAX_PROCESSES || !nr_process) {
+		if (nr_process > MAX_PROCESSES || nr_process < 1) {
 			printk("nr_process should be between [1; %u]",
 					MAX_PROCESSES);
 			exit_usage(argv);

tools/testing/selftests/net/mptcp/mptcp_connect.c

···
 
 #include <sys/ioctl.h>
 #include <sys/poll.h>
+#include <sys/random.h>
 #include <sys/sendfile.h>
 #include <sys/stat.h>
 #include <sys/socket.h>
···
 
 static void init_rng(void)
 {
-	int fd = open("/dev/urandom", O_RDONLY);
 	unsigned int foo;
 
-	if (fd > 0) {
-		int ret = read(fd, &foo, sizeof(foo));
-
-		if (ret < 0)
-			srand(fd + foo);
-		close(fd);
+	if (getrandom(&foo, sizeof(foo), 0) == -1) {
+		perror("getrandom");
+		exit(1);
 	}
 
 	srand(foo);

tools/testing/selftests/net/mptcp/mptcp_inq.c

···
 #include <time.h>
 
 #include <sys/ioctl.h>
+#include <sys/random.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <sys/wait.h>
···
 
 static void init_rng(void)
 {
-	int fd = open("/dev/urandom", O_RDONLY);
 	unsigned int foo;
 
-	if (fd > 0) {
-		int ret = read(fd, &foo, sizeof(foo));
-
-		if (ret < 0)
-			srand(fd + foo);
-		close(fd);
+	if (getrandom(&foo, sizeof(foo), 0) == -1) {
+		perror("getrandom");
+		exit(1);
 	}
 
 	srand(foo);