Commit ac3ca6af authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
Browse files

net: bridge: fdb: convert added_by_user to bitops 



Straight-forward convert of the added_by_user field to bitops.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e0458d9a

net/bridge/br_fdb.c

+12 −13
Original line number Diff line number Diff line
@@ -225,7 +225,7 @@ static void fdb_delete_local(struct net_bridge *br, 
		if (op != p && ether_addr_equal(op->dev->dev_addr, addr) &&

		    (!vid || br_vlan_find(vg, vid))) {

			f->dst = op;

			f->added_by_user = 0;

			clear_bit(BR_FDB_ADDED_BY_USER, &f->flags);

			return;

		}

	}
@@ -236,7 +236,7 @@ static void fdb_delete_local(struct net_bridge *br, 
	if (p && ether_addr_equal(br->dev->dev_addr, addr) &&

	    (!vid || (v && br_vlan_should_use(v)))) {

		f->dst = NULL;

		f->added_by_user = 0;

		clear_bit(BR_FDB_ADDED_BY_USER, &f->flags);

		return;

	}
@@ -252,7 +252,7 @@ void br_fdb_find_delete_local(struct net_bridge *br, 
	spin_lock_bh(&br->hash_lock);

	f = br_fdb_find(br, addr, vid);

	if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&

	    !f->added_by_user && f->dst == p)

	    !test_bit(BR_FDB_ADDED_BY_USER, &f->flags) && f->dst == p)

		fdb_delete_local(br, p, f);

	spin_unlock_bh(&br->hash_lock);

}
@@ -268,7 +268,7 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr) 
	vg = nbp_vlan_group(p);

	hlist_for_each_entry(f, &br->fdb_list, fdb_node) {

		if (f->dst == p && test_bit(BR_FDB_LOCAL, &f->flags) &&

		    !f->added_by_user) {

		    !test_bit(BR_FDB_ADDED_BY_USER, &f->flags)) {

			/* delete old one */

			fdb_delete_local(br, p, f);
@@ -310,7 +310,7 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr) 
	/* If old entry was unassociated with any port, then delete it. */

	f = br_fdb_find(br, br->dev->dev_addr, 0);

	if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&

	    !f->dst && !f->added_by_user)

	    !f->dst && !test_bit(BR_FDB_ADDED_BY_USER, &f->flags))

		fdb_delete_local(br, NULL, f);



	fdb_insert(br, NULL, newaddr, 0);
@@ -326,7 +326,7 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr) 
			continue;

		f = br_fdb_find(br, br->dev->dev_addr, v->vid);

		if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&

		    !f->dst && !f->added_by_user)

		    !f->dst && !test_bit(BR_FDB_ADDED_BY_USER, &f->flags))

			fdb_delete_local(br, NULL, f);

		fdb_insert(br, NULL, newaddr, v->vid);

	}
@@ -506,7 +506,6 @@ static struct net_bridge_fdb_entry *fdb_create(struct net_bridge *br, 
			set_bit(BR_FDB_LOCAL, &fdb->flags);

		if (is_static)

			set_bit(BR_FDB_STATIC, &fdb->flags);

		fdb->added_by_user = 0;

		fdb->added_by_external_learn = 0;

		fdb->offloaded = 0;

		fdb->updated = fdb->used = jiffies;
@@ -600,7 +599,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 
			if (now != fdb->updated)

				fdb->updated = now;

			if (unlikely(added_by_user))

				fdb->added_by_user = 1;

				set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);

			if (unlikely(fdb_modified)) {

				trace_br_fdb_update(br, source, addr, vid, added_by_user);

				fdb_notify(br, fdb, RTM_NEWNEIGH, true);
@@ -611,7 +610,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 
		fdb = fdb_create(br, source, addr, vid, 0, 0);

		if (fdb) {

			if (unlikely(added_by_user))

				fdb->added_by_user = 1;

				set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);

			trace_br_fdb_update(br, source, addr, vid,

					    added_by_user);

			fdb_notify(br, fdb, RTM_NEWNEIGH, true);
@@ -871,7 +870,7 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source, 
		modified = true;

	}



	fdb->added_by_user = 1;

	set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);



	fdb->used = jiffies;

	if (modified) {
@@ -1129,7 +1128,7 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 
			goto err_unlock;

		}

		if (swdev_notify)

			fdb->added_by_user = 1;

			set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);

		fdb->added_by_external_learn = 1;

		fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);

	} else {
@@ -1143,14 +1142,14 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 
		if (fdb->added_by_external_learn) {

			/* Refresh entry */

			fdb->used = jiffies;

		} else if (!fdb->added_by_user) {

		} else if (!test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags)) {

			/* Take over SW learned entry */

			fdb->added_by_external_learn = 1;

			modified = true;

		}



		if (swdev_notify)

			fdb->added_by_user = 1;

			set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);



		if (modified)

			fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);

net/bridge/br_private.h

+2 −2
Original line number Diff line number Diff line
@@ -177,6 +177,7 @@ enum { 
	BR_FDB_LOCAL,

	BR_FDB_STATIC,

	BR_FDB_STICKY,

	BR_FDB_ADDED_BY_USER,

};



struct net_bridge_fdb_key {
@@ -191,8 +192,7 @@ struct net_bridge_fdb_entry { 
	struct net_bridge_fdb_key	key;

	struct hlist_node		fdb_node;

	unsigned long			flags;

	unsigned char			added_by_user:1,

					added_by_external_learn:1,

	unsigned char			added_by_external_learn:1,

					offloaded:1;



	/* write-heavy members should not affect lookups */

net/bridge/br_switchdev.c

+4 −2
Original line number Diff line number Diff line
@@ -129,14 +129,16 @@ br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 
		br_switchdev_fdb_call_notifiers(false, fdb->key.addr.addr,

						fdb->key.vlan_id,

						fdb->dst->dev,

						fdb->added_by_user,

						test_bit(BR_FDB_ADDED_BY_USER,

							 &fdb->flags),

						fdb->offloaded);

		break;

	case RTM_NEWNEIGH:

		br_switchdev_fdb_call_notifiers(true, fdb->key.addr.addr,

						fdb->key.vlan_id,

						fdb->dst->dev,

						fdb->added_by_user,

						test_bit(BR_FDB_ADDED_BY_USER,

							 &fdb->flags),

						fdb->offloaded);

		break;

	}

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