Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 29 insertions, 46 deletions

diff --git a/net/bridge/br.c b/net/bridge/br.c
index ac19b797db..2cab878e0a 100644
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -356,26 +356,21 @@ void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on)
 		clear_bit(opt, &br->options);
 }
 
-static void __net_exit br_net_exit_batch(struct list_head *net_list)
+static void __net_exit br_net_exit_batch_rtnl(struct list_head *net_list,
+					      struct list_head *dev_to_kill)
 {
 	struct net_device *dev;
 	struct net *net;
-	LIST_HEAD(list);
-
-	rtnl_lock();
 
+	ASSERT_RTNL();
 	list_for_each_entry(net, net_list, exit_list)
 		for_each_netdev(net, dev)
 			if (netif_is_bridge_master(dev))
-				br_dev_delete(dev, &list);
-
-	unregister_netdevice_many(&list);
-
-	rtnl_unlock();
+				br_dev_delete(dev, dev_to_kill);
 }
 
 static struct pernet_operations br_net_ops = {
-	.exit_batch	= br_net_exit_batch,
+	.exit_batch_rtnl = br_net_exit_batch_rtnl,
 };
 
 static const struct stp_proto br_stp_proto = {
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 79b822be6c..ecac788698 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -114,38 +114,23 @@ out:
 	return NETDEV_TX_OK;
 }
 
-static struct lock_class_key bridge_netdev_addr_lock_key;
-
-static void br_set_lockdep_class(struct net_device *dev)
-{
-	lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key);
-}
-
 static int br_dev_init(struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
 	int err;
 
-	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
-	if (!dev->tstats)
-		return -ENOMEM;
-
 	err = br_fdb_hash_init(br);
-	if (err) {
-		free_percpu(dev->tstats);
+	if (err)
 		return err;
-	}
 
 	err = br_mdb_hash_init(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_fdb_hash_fini(br);
 		return err;
 	}
 
 	err = br_vlan_init(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_mdb_hash_fini(br);
 		br_fdb_hash_fini(br);
 		return err;
@@ -153,14 +138,14 @@ static int br_dev_init(struct net_device *dev)
 
 	err = br_multicast_init_stats(br);
 	if (err) {
-		free_percpu(dev->tstats);
 		br_vlan_flush(br);
 		br_mdb_hash_fini(br);
 		br_fdb_hash_fini(br);
+		return err;
 	}
 
-	br_set_lockdep_class(dev);
-	return err;
+	netdev_lockdep_set_classes(dev);
+	return 0;
 }
 
 static void br_dev_uninit(struct net_device *dev)
@@ -172,7 +157,6 @@ static void br_dev_uninit(struct net_device *dev)
 	br_vlan_flush(br);
 	br_mdb_hash_fini(br);
 	br_fdb_hash_fini(br);
-	free_percpu(dev->tstats);
 }
 
 static int br_dev_open(struct net_device *dev)
@@ -487,7 +471,7 @@ static const struct net_device_ops br_netdev_ops = {
 	.ndo_fill_forward_path	 = br_fill_forward_path,
 };
 
-static struct device_type br_type = {
+static const struct device_type br_type = {
 	.name	= "bridge",
 };
 
@@ -509,6 +493,7 @@ void br_dev_setup(struct net_device *dev)
 	dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX |
 			   NETIF_F_HW_VLAN_STAG_TX;
 	dev->vlan_features = COMMON_FEATURES;
+	dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
 
 	br->dev = dev;
 	spin_lock_init(&br->lock);
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index c622de5ecc..c77591e638 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -35,10 +35,7 @@ static struct kmem_cache *br_fdb_cache __read_mostly;
 
 int __init br_fdb_init(void)
 {
-	br_fdb_cache = kmem_cache_create("bridge_fdb_cache",
-					 sizeof(struct net_bridge_fdb_entry),
-					 0,
-					 SLAB_HWCACHE_ALIGN, NULL);
+	br_fdb_cache = KMEM_CACHE(net_bridge_fdb_entry, SLAB_HWCACHE_ALIGN);
 	if (!br_fdb_cache)
 		return -ENOMEM;
 
diff --git a/net/bridge/br_mst.c b/net/bridge/br_mst.c
index 3c66141d34..1820f09ff5 100644
--- a/net/bridge/br_mst.c
+++ b/net/bridge/br_mst.c
@@ -73,11 +73,10 @@ int br_mst_get_state(const struct net_device *dev, u16 msti, u8 *state)
 }
 EXPORT_SYMBOL_GPL(br_mst_get_state);
 
-static void br_mst_vlan_set_state(struct net_bridge_port *p, struct net_bridge_vlan *v,
+static void br_mst_vlan_set_state(struct net_bridge_vlan_group *vg,
+				  struct net_bridge_vlan *v,
 				  u8 state)
 {
-	struct net_bridge_vlan_group *vg = nbp_vlan_group(p);
-
 	if (br_vlan_get_state(v) == state)
 		return;
 
@@ -103,7 +102,7 @@ int br_mst_set_state(struct net_bridge_port *p, u16 msti, u8 state,
 	int err = 0;
 
 	rcu_read_lock();
-	vg = nbp_vlan_group(p);
+	vg = nbp_vlan_group_rcu(p);
 	if (!vg)
 		goto out;
 
@@ -121,7 +120,7 @@ int br_mst_set_state(struct net_bridge_port *p, u16 msti, u8 state,
 		if (v->brvlan->msti != msti)
 			continue;
 
-		br_mst_vlan_set_state(p, v, state);
+		br_mst_vlan_set_state(vg, v, state);
 	}
 
 out:
@@ -140,13 +139,13 @@ static void br_mst_vlan_sync_state(struct net_bridge_vlan *pv, u16 msti)
 		 * it.
 		 */
 		if (v != pv && v->brvlan->msti == msti) {
-			br_mst_vlan_set_state(pv->port, pv, v->state);
+			br_mst_vlan_set_state(vg, pv, v->state);
 			return;
 		}
 	}
 
 	/* Otherwise, start out in a new MSTI with all ports disabled. */
-	return br_mst_vlan_set_state(pv->port, pv, BR_STATE_DISABLED);
+	return br_mst_vlan_set_state(vg, pv, BR_STATE_DISABLED);
 }
 
 int br_mst_vlan_set_msti(struct net_bridge_vlan *mv, u16 msti)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 2d7b732429..9a1cb5079a 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -5053,7 +5053,7 @@ void br_multicast_uninit_stats(struct net_bridge *br)
 	free_percpu(br->mcast_stats);
 }
 
-/* noinline for https://bugs.llvm.org/show_bug.cgi?id=45802#c9 */
+/* noinline for https://llvm.org/pr45802#c9 */
 static noinline_for_stack void mcast_stats_add_dir(u64 *dst, u64 *src)
 {
 	dst[BR_MCAST_DIR_RX] += src[BR_MCAST_DIR_RX];
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 15f44d026e..9c2fffb827 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -841,7 +841,7 @@ void br_vlan_flush(struct net_bridge *br)
 	vg = br_vlan_group(br);
 	__vlan_flush(br, NULL, vg);
 	RCU_INIT_POINTER(br->vlgrp, NULL);
-	synchronize_rcu();
+	synchronize_net();
 	__vlan_group_free(vg);
 }
 
@@ -1372,7 +1372,7 @@ void nbp_vlan_flush(struct net_bridge_port *port)
 	vg = nbp_vlan_group(port);
 	__vlan_flush(port->br, port, vg);
 	RCU_INIT_POINTER(port->vlgrp, NULL);
-	synchronize_rcu();
+	synchronize_net();
 	__vlan_group_free(vg);
 }
 
diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index 7f304a19ac..104c0125e3 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -39,6 +39,10 @@ config NF_CONNTRACK_BRIDGE
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+# old sockopt interface and eval loop
+config BRIDGE_NF_EBTABLES_LEGACY
+	tristate
+
 menuconfig BRIDGE_NF_EBTABLES
 	tristate "Ethernet Bridge tables (ebtables) support"
 	depends on BRIDGE && NETFILTER && NETFILTER_XTABLES
@@ -55,6 +59,7 @@ if BRIDGE_NF_EBTABLES
 #
 config BRIDGE_EBT_BROUTE
 	tristate "ebt: broute table support"
+	select BRIDGE_NF_EBTABLES_LEGACY
 	help
 	  The ebtables broute table is used to define rules that decide between
 	  bridging and routing frames, giving Linux the functionality of a
@@ -65,6 +70,7 @@ config BRIDGE_EBT_BROUTE
 
 config BRIDGE_EBT_T_FILTER
 	tristate "ebt: filter table support"
+	select BRIDGE_NF_EBTABLES_LEGACY
 	help
 	  The ebtables filter table is used to define frame filtering rules at
 	  local input, forwarding and local output. See the man page for
@@ -74,6 +80,7 @@ config BRIDGE_EBT_T_FILTER
 
 config BRIDGE_EBT_T_NAT
 	tristate "ebt: nat table support"
+	select BRIDGE_NF_EBTABLES_LEGACY
 	help
 	  The ebtables nat table is used to define rules that alter the MAC
 	  source address (MAC SNAT) or the MAC destination address (MAC DNAT).
diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile
index 1c9ce49ab6..b9a1303da9 100644
--- a/net/bridge/netfilter/Makefile
+++ b/net/bridge/netfilter/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_NFT_BRIDGE_REJECT)  += nft_reject_bridge.o
 # connection tracking
 obj-$(CONFIG_NF_CONNTRACK_BRIDGE) += nf_conntrack_bridge.o
 
-obj-$(CONFIG_BRIDGE_NF_EBTABLES) += ebtables.o
+obj-$(CONFIG_BRIDGE_NF_EBTABLES_LEGACY) += ebtables.o
 
 # tables
 obj-$(CONFIG_BRIDGE_EBT_BROUTE) += ebtable_broute.o