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Date: Fri, 20 Aug 2021 14:57:40 +0300
From: Vladimir Oltean <vladimir.oltean@....com>
To: netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
"David S. Miller" <davem@...emloft.net>
Cc: Roopa Prabhu <roopa@...dia.com>,
Nikolay Aleksandrov <nikolay@...dia.com>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Vivien Didelot <vivien.didelot@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Vadym Kochan <vkochan@...vell.com>,
Taras Chornyi <tchornyi@...vell.com>,
Jiri Pirko <jiri@...dia.com>, Ido Schimmel <idosch@...dia.com>,
UNGLinuxDriver@...rochip.com,
Grygorii Strashko <grygorii.strashko@...com>,
Marek Behun <kabel@...ckhole.sk>,
DENG Qingfang <dqfext@...il.com>,
Kurt Kanzenbach <kurt@...utronix.de>,
Hauke Mehrtens <hauke@...ke-m.de>,
Woojung Huh <woojung.huh@...rochip.com>,
Sean Wang <sean.wang@...iatek.com>,
Landen Chao <Landen.Chao@...iatek.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
George McCollister <george.mccollister@...il.com>,
Ioana Ciornei <ioana.ciornei@....com>,
Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>,
Lars Povlsen <lars.povlsen@...rochip.com>,
Steen Hegelund <Steen.Hegelund@...rochip.com>,
Julian Wiedmann <jwi@...ux.ibm.com>,
Alexandra Winter <wintera@...ux.ibm.com>,
Karsten Graul <kgraul@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Ivan Vecera <ivecera@...hat.com>,
Vlad Buslov <vladbu@...dia.com>,
Jianbo Liu <jianbol@...dia.com>,
Mark Bloch <mbloch@...dia.com>, Roi Dayan <roid@...dia.com>,
Tobias Waldekranz <tobias@...dekranz.com>,
Vignesh Raghavendra <vigneshr@...com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
linux-s390@...r.kernel.org
Subject: [PATCH v3 net-next 1/7] net: bridge: move br_fdb_replay inside br_switchdev.c
br_fdb_replay is only called from switchdev code paths, so it makes
sense to be disabled if switchdev is not enabled in the first place.
As opposed to br_mdb_replay and br_vlan_replay which might be turned off
depending on bridge support for multicast and VLANs, FDB support is
always on. So moving br_mdb_replay and br_vlan_replay inside
br_switchdev.c would mean adding some #ifdef's in br_switchdev.c, so we
keep those where they are.
The reason for the movement is that in future changes there will be some
code reuse between br_switchdev_fdb_notify and br_fdb_replay.
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
v2->v3: patch is new
net/bridge/br_fdb.c | 54 ---------------------------------------
net/bridge/br_private.h | 2 --
net/bridge/br_switchdev.c | 54 +++++++++++++++++++++++++++++++++++++++
3 files changed, 54 insertions(+), 56 deletions(-)
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 46812b659710..c6e51701bc37 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -732,60 +732,6 @@ static inline size_t fdb_nlmsg_size(void)
+ nla_total_size(sizeof(u8)); /* NFEA_ACTIVITY_NOTIFY */
}
-static int br_fdb_replay_one(struct net_bridge *br, struct notifier_block *nb,
- const struct net_bridge_fdb_entry *fdb,
- unsigned long action, const void *ctx)
-{
- const struct net_bridge_port *p = READ_ONCE(fdb->dst);
- struct switchdev_notifier_fdb_info item;
- int err;
-
- item.addr = fdb->key.addr.addr;
- item.vid = fdb->key.vlan_id;
- item.added_by_user = test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
- item.offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags);
- item.is_local = test_bit(BR_FDB_LOCAL, &fdb->flags);
- item.info.dev = (!p || item.is_local) ? br->dev : p->dev;
- item.info.ctx = ctx;
-
- err = nb->notifier_call(nb, action, &item);
- return notifier_to_errno(err);
-}
-
-int br_fdb_replay(const struct net_device *br_dev, const void *ctx, bool adding,
- struct notifier_block *nb)
-{
- struct net_bridge_fdb_entry *fdb;
- struct net_bridge *br;
- unsigned long action;
- int err = 0;
-
- if (!nb)
- return 0;
-
- if (!netif_is_bridge_master(br_dev))
- return -EINVAL;
-
- br = netdev_priv(br_dev);
-
- if (adding)
- action = SWITCHDEV_FDB_ADD_TO_DEVICE;
- else
- action = SWITCHDEV_FDB_DEL_TO_DEVICE;
-
- rcu_read_lock();
-
- hlist_for_each_entry_rcu(fdb, &br->fdb_list, fdb_node) {
- err = br_fdb_replay_one(br, nb, fdb, action, ctx);
- if (err)
- break;
- }
-
- rcu_read_unlock();
-
- return err;
-}
-
static void fdb_notify(struct net_bridge *br,
const struct net_bridge_fdb_entry *fdb, int type,
bool swdev_notify)
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 21b292eb2b3e..390c807d1c7c 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -778,8 +778,6 @@ int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
bool swdev_notify);
void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p,
const unsigned char *addr, u16 vid, bool offloaded);
-int br_fdb_replay(const struct net_device *br_dev, const void *ctx, bool adding,
- struct notifier_block *nb);
/* br_forward.c */
enum br_pkt_type {
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index 6bf518d78f02..8a45b1cfe06f 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -270,6 +270,60 @@ static void nbp_switchdev_del(struct net_bridge_port *p)
}
}
+static int br_fdb_replay_one(struct net_bridge *br, struct notifier_block *nb,
+ const struct net_bridge_fdb_entry *fdb,
+ unsigned long action, const void *ctx)
+{
+ const struct net_bridge_port *p = READ_ONCE(fdb->dst);
+ struct switchdev_notifier_fdb_info item;
+ int err;
+
+ item.addr = fdb->key.addr.addr;
+ item.vid = fdb->key.vlan_id;
+ item.added_by_user = test_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
+ item.offloaded = test_bit(BR_FDB_OFFLOADED, &fdb->flags);
+ item.is_local = test_bit(BR_FDB_LOCAL, &fdb->flags);
+ item.info.dev = (!p || item.is_local) ? br->dev : p->dev;
+ item.info.ctx = ctx;
+
+ err = nb->notifier_call(nb, action, &item);
+ return notifier_to_errno(err);
+}
+
+static int br_fdb_replay(const struct net_device *br_dev, const void *ctx,
+ bool adding, struct notifier_block *nb)
+{
+ struct net_bridge_fdb_entry *fdb;
+ struct net_bridge *br;
+ unsigned long action;
+ int err = 0;
+
+ if (!nb)
+ return 0;
+
+ if (!netif_is_bridge_master(br_dev))
+ return -EINVAL;
+
+ br = netdev_priv(br_dev);
+
+ if (adding)
+ action = SWITCHDEV_FDB_ADD_TO_DEVICE;
+ else
+ action = SWITCHDEV_FDB_DEL_TO_DEVICE;
+
+ rcu_read_lock();
+
+ hlist_for_each_entry_rcu(fdb, &br->fdb_list, fdb_node) {
+ err = br_fdb_replay_one(br, nb, fdb, action, ctx);
+ if (err)
+ break;
+ }
+
+ rcu_read_unlock();
+
+ return err;
+}
+
static int nbp_switchdev_sync_objs(struct net_bridge_port *p, const void *ctx,
struct notifier_block *atomic_nb,
struct notifier_block *blocking_nb,
--
2.25.1
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