tgupdate: merge t/DO-NOT-MERGE-mptcp-enabled-by-default base into t/DO-NOT-MERGE-mptcp-enabled-by-default

Author: matttbe

drivers/net/ethernet/realtek/r8169_main.c

@@ -16,7 +16,6 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/ethtool.h>
-#include <linux/hwmon.h>
 #include <linux/phy.h>
 #include <linux/if_vlan.h>
 #include <linux/in.h>
@@ -5368,36 +5367,6 @@ static bool rtl_aspm_is_safe(struct rtl8169_private *tp)
 	return false;
 }
 
-static int r8169_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
-			    u32 attr, int channel, long *val)
-{
-	struct rtl8169_private *tp = dev_get_drvdata(dev);
-	int val_raw;
-
-	val_raw = phy_read_paged(tp->phydev, 0xbd8, 0x12) & 0x3ff;
-	if (val_raw >= 512)
-		val_raw -= 1024;
-
-	*val = 1000 * val_raw / 2;
-
-	return 0;
-}
-
-static const struct hwmon_ops r8169_hwmon_ops = {
-	.visible = 0444,
-	.read = r8169_hwmon_read,
-};
-
-static const struct hwmon_channel_info * const r8169_hwmon_info[] = {
-	HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT),
-	NULL
-};
-
-static const struct hwmon_chip_info r8169_hwmon_chip_info = {
-	.ops = &r8169_hwmon_ops,
-	.info = r8169_hwmon_info,
-};
-
 static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	struct rtl8169_private *tp;
@@ -5577,12 +5546,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc)
 		return rc;
 
-	/* The temperature sensor is available from RTl8125B */
-	if (IS_REACHABLE(CONFIG_HWMON) && tp->mac_version >= RTL_GIGA_MAC_VER_63)
-		/* ignore errors */
-		devm_hwmon_device_register_with_info(&pdev->dev, "nic_temp", tp,
-						     &r8169_hwmon_chip_info,
-						     NULL);
 	rc = register_netdev(dev);
 	if (rc)
 		return rc;

drivers/net/gtp.c

@@ -1524,8 +1524,8 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,
 		goto out_encap;
 	}
 
-	gn = net_generic(dev_net(dev), gtp_net_id);
-	list_add_rcu(&gtp->list, &gn->gtp_dev_list);
+	gn = net_generic(src_net, gtp_net_id);
+	list_add(&gtp->list, &gn->gtp_dev_list);
 	dev->priv_destructor = gtp_destructor;
 
 	netdev_dbg(dev, "registered new GTP interface\n");
@@ -1551,7 +1551,7 @@ static void gtp_dellink(struct net_device *dev, struct list_head *head)
 		hlist_for_each_entry_safe(pctx, next, &gtp->tid_hash[i], hlist_tid)
 			pdp_context_delete(pctx);
 
-	list_del_rcu(&gtp->list);
+	list_del(&gtp->list);
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -2271,16 +2271,19 @@ static int gtp_genl_dump_pdp(struct sk_buff *skb,
 	struct gtp_dev *last_gtp = (struct gtp_dev *)cb->args[2], *gtp;
 	int i, j, bucket = cb->args[0], skip = cb->args[1];
 	struct net *net = sock_net(skb->sk);
+	struct net_device *dev;
 	struct pdp_ctx *pctx;
-	struct gtp_net *gn;
-
-	gn = net_generic(net, gtp_net_id);
 
 	if (cb->args[4])
 		return 0;
 
 	rcu_read_lock();
-	list_for_each_entry_rcu(gtp, &gn->gtp_dev_list, list) {
+	for_each_netdev_rcu(net, dev) {
+		if (dev->rtnl_link_ops != &gtp_link_ops)
+			continue;
+
+		gtp = netdev_priv(dev);
+
 		if (last_gtp && last_gtp != gtp)
 			continue;
 		else
@@ -2475,9 +2478,14 @@ static void __net_exit gtp_net_exit_batch_rtnl(struct list_head *net_list,
 
 	list_for_each_entry(net, net_list, exit_list) {
 		struct gtp_net *gn = net_generic(net, gtp_net_id);
-		struct gtp_dev *gtp;
+		struct gtp_dev *gtp, *gtp_next;
+		struct net_device *dev;
+
+		for_each_netdev(net, dev)
+			if (dev->rtnl_link_ops == &gtp_link_ops)
+				gtp_dellink(dev, dev_to_kill);
 
-		list_for_each_entry(gtp, &gn->gtp_dev_list, list)
+		list_for_each_entry_safe(gtp, gtp_next, &gn->gtp_dev_list, list)
 			gtp_dellink(gtp->dev, dev_to_kill);
 	}
 }

drivers/net/pfcp.c

@@ -206,8 +206,8 @@ static int pfcp_newlink(struct net *net, struct net_device *dev,
 		goto exit_del_pfcp_sock;
 	}
 
-	pn = net_generic(dev_net(dev), pfcp_net_id);
-	list_add_rcu(&pfcp->list, &pn->pfcp_dev_list);
+	pn = net_generic(net, pfcp_net_id);
+	list_add(&pfcp->list, &pn->pfcp_dev_list);
 
 	netdev_dbg(dev, "registered new PFCP interface\n");
 
@@ -224,7 +224,7 @@ static void pfcp_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct pfcp_dev *pfcp = netdev_priv(dev);
 
-	list_del_rcu(&pfcp->list);
+	list_del(&pfcp->list);
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -247,11 +247,16 @@ static int __net_init pfcp_net_init(struct net *net)
 static void __net_exit pfcp_net_exit(struct net *net)
 {
 	struct pfcp_net *pn = net_generic(net, pfcp_net_id);
-	struct pfcp_dev *pfcp;
+	struct pfcp_dev *pfcp, *pfcp_next;
+	struct net_device *dev;
 	LIST_HEAD(list);
 
 	rtnl_lock();
-	list_for_each_entry(pfcp, &pn->pfcp_dev_list, list)
+	for_each_netdev(net, dev)
+		if (dev->rtnl_link_ops == &pfcp_link_ops)
+			pfcp_dellink(dev, &list);
+
+	list_for_each_entry_safe(pfcp, pfcp_next, &pn->pfcp_dev_list, list)
 		pfcp_dellink(pfcp->dev, &list);
 
 	unregister_netdevice_many(&list);

net/core/pktgen.c

@@ -851,6 +851,9 @@ static ssize_t get_imix_entries(const char __user *buffer,
 		unsigned long weight;
 		unsigned long size;
 
+		if (pkt_dev->n_imix_entries >= MAX_IMIX_ENTRIES)
+			return -E2BIG;
+
 		len = num_arg(&buffer[i], max_digits, &size);
 		if (len < 0)
 			return len;
@@ -880,9 +883,6 @@ static ssize_t get_imix_entries(const char __user *buffer,
 
 		i++;
 		pkt_dev->n_imix_entries++;
-
-		if (pkt_dev->n_imix_entries > MAX_IMIX_ENTRIES)
-			return -E2BIG;
 	} while (c == ' ');
 
 	return i;

net/ipv4/udp.c

@@ -576,7 +576,7 @@ static struct sock *udp4_lib_lookup4(const struct net *net,
 	return NULL;
 }
 
-/* In hash4, rehash can happen in connect(), where hash4_cnt keeps unchanged. */
+/* udp_rehash4() only checks hslot4, and hash4_cnt is not processed. */
 static void udp_rehash4(struct udp_table *udptable, struct sock *sk,
 			u16 newhash4)
 {
@@ -625,15 +625,13 @@ void udp_lib_hash4(struct sock *sk, u16 hash)
 	struct net *net = sock_net(sk);
 	struct udp_table *udptable;
 
-	/* Connected udp socket can re-connect to another remote address,
-	 * so rehash4 is needed.
+	/* Connected udp socket can re-connect to another remote address, which
+	 * will be handled by rehash. Thus no need to redo hash4 here.
 	 */
-	udptable = net->ipv4.udp_table;
-	if (udp_hashed4(sk)) {
-		udp_rehash4(udptable, sk, hash);
+	if (udp_hashed4(sk))
 		return;
-	}
 
+	udptable = net->ipv4.udp_table;
 	hslot = udp_hashslot(udptable, net, udp_sk(sk)->udp_port_hash);
 	hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash);
 	hslot4 = udp_hashslot4(udptable, hash);
@@ -2229,14 +2227,14 @@ void udp_lib_rehash(struct sock *sk, u16 newhash, u16 newhash4)
 		struct udp_table *udptable = udp_get_table_prot(sk);
 		struct udp_hslot *hslot, *hslot2, *nhslot2;
 
+		hslot = udp_hashslot(udptable, sock_net(sk),
+				     udp_sk(sk)->udp_port_hash);
 		hslot2 = udp_hashslot2(udptable, udp_sk(sk)->udp_portaddr_hash);
 		nhslot2 = udp_hashslot2(udptable, newhash);
 		udp_sk(sk)->udp_portaddr_hash = newhash;
 
 		if (hslot2 != nhslot2 ||
 		    rcu_access_pointer(sk->sk_reuseport_cb)) {
-			hslot = udp_hashslot(udptable, sock_net(sk),
-					     udp_sk(sk)->udp_port_hash);
 			/* we must lock primary chain too */
 			spin_lock_bh(&hslot->lock);
 			if (rcu_access_pointer(sk->sk_reuseport_cb))
@@ -2255,19 +2253,29 @@ void udp_lib_rehash(struct sock *sk, u16 newhash, u16 newhash4)
 				spin_unlock(&nhslot2->lock);
 			}
 
-			if (udp_hashed4(sk)) {
-				udp_rehash4(udptable, sk, newhash4);
+			spin_unlock_bh(&hslot->lock);
+		}
+
+		/* Now process hash4 if necessary:
+		 * (1) update hslot4;
+		 * (2) update hslot2->hash4_cnt.
+		 * Note that hslot2/hslot4 should be checked separately, as
+		 * either of them may change with the other unchanged.
+		 */
+		if (udp_hashed4(sk)) {
+			spin_lock_bh(&hslot->lock);
 
-				if (hslot2 != nhslot2) {
-					spin_lock(&hslot2->lock);
-					udp_hash4_dec(hslot2);
-					spin_unlock(&hslot2->lock);
+			udp_rehash4(udptable, sk, newhash4);
+			if (hslot2 != nhslot2) {
+				spin_lock(&hslot2->lock);
+				udp_hash4_dec(hslot2);
+				spin_unlock(&hslot2->lock);
 
-					spin_lock(&nhslot2->lock);
-					udp_hash4_inc(nhslot2);
-					spin_unlock(&nhslot2->lock);
-				}
+				spin_lock(&nhslot2->lock);
+				udp_hash4_inc(nhslot2);
+				spin_unlock(&nhslot2->lock);
 			}
+
 			spin_unlock_bh(&hslot->lock);
 		}
 	}

net/ncsi/internal.h

@@ -289,6 +289,7 @@ enum {
 	ncsi_dev_state_config_sp	= 0x0301,
 	ncsi_dev_state_config_cis,
 	ncsi_dev_state_config_oem_gma,
+	ncsi_dev_state_config_apply_mac,
 	ncsi_dev_state_config_clear_vids,
 	ncsi_dev_state_config_svf,
 	ncsi_dev_state_config_ev,
@@ -322,6 +323,7 @@ struct ncsi_dev_priv {
 #define NCSI_DEV_RESHUFFLE	4
 #define NCSI_DEV_RESET		8            /* Reset state of NC          */
 	unsigned int        gma_flag;        /* OEM GMA flag               */
+	struct sockaddr     pending_mac;     /* MAC address received from GMA */
 	spinlock_t          lock;            /* Protect the NCSI device    */
 	unsigned int        package_probe_id;/* Current ID during probe    */
 	unsigned int        package_num;     /* Number of packages         */

net/ncsi/ncsi-manage.c

@@ -1038,7 +1038,7 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
 			  : ncsi_dev_state_config_clear_vids;
 		break;
 	case ncsi_dev_state_config_oem_gma:
-		nd->state = ncsi_dev_state_config_clear_vids;
+		nd->state = ncsi_dev_state_config_apply_mac;
 
 		nca.package = np->id;
 		nca.channel = nc->id;
@@ -1050,10 +1050,22 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
 			nca.type = NCSI_PKT_CMD_OEM;
 			ret = ncsi_gma_handler(&nca, nc->version.mf_id);
 		}
-		if (ret < 0)
+		if (ret < 0) {
+			nd->state = ncsi_dev_state_config_clear_vids;
 			schedule_work(&ndp->work);
+		}
 
 		break;
+	case ncsi_dev_state_config_apply_mac:
+		rtnl_lock();
+		ret = dev_set_mac_address(dev, &ndp->pending_mac, NULL);
+		rtnl_unlock();
+		if (ret < 0)
+			netdev_warn(dev, "NCSI: 'Writing MAC address to device failed\n");
+
+		nd->state = ncsi_dev_state_config_clear_vids;
+
+		fallthrough;
 	case ncsi_dev_state_config_clear_vids:
 	case ncsi_dev_state_config_svf:
 	case ncsi_dev_state_config_ev:

net/ncsi/ncsi-rsp.c

@@ -628,16 +628,14 @@ static int ncsi_rsp_handler_snfc(struct ncsi_request *nr)
 static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
 {
 	struct ncsi_dev_priv *ndp = nr->ndp;
+	struct sockaddr *saddr = &ndp->pending_mac;
 	struct net_device *ndev = ndp->ndev.dev;
 	struct ncsi_rsp_oem_pkt *rsp;
-	struct sockaddr saddr;
 	u32 mac_addr_off = 0;
-	int ret = 0;
 
 	/* Get the response header */
 	rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
 
-	saddr.sa_family = ndev->type;
 	ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	if (mfr_id == NCSI_OEM_MFR_BCM_ID)
 		mac_addr_off = BCM_MAC_ADDR_OFFSET;
@@ -646,22 +644,17 @@ static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
 	else if (mfr_id == NCSI_OEM_MFR_INTEL_ID)
 		mac_addr_off = INTEL_MAC_ADDR_OFFSET;
 
-	memcpy(saddr.sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
+	saddr->sa_family = ndev->type;
+	memcpy(saddr->sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
 	if (mfr_id == NCSI_OEM_MFR_BCM_ID || mfr_id == NCSI_OEM_MFR_INTEL_ID)
-		eth_addr_inc((u8 *)saddr.sa_data);
-	if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
+		eth_addr_inc((u8 *)saddr->sa_data);
+	if (!is_valid_ether_addr((const u8 *)saddr->sa_data))
 		return -ENXIO;
 
 	/* Set the flag for GMA command which should only be called once */
 	ndp->gma_flag = 1;
 
-	rtnl_lock();
-	ret = dev_set_mac_address(ndev, &saddr, NULL);
-	rtnl_unlock();
-	if (ret < 0)
-		netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
-
-	return ret;
+	return 0;
 }
 
 /* Response handler for Mellanox card */