4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
[ Upstream commit e0458d9a733ba71a2821d0c3fc0745baac697db0 ]
Straight-forward convert of the is_sticky field to bitops.
Signed-off-by: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Stable-dep-of: bee2ef946d31 ("net: bridge: br_fdb_external_learn_add(): always set EXT_LEARN")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/bridge/br_fdb.c | 11 ++++++-----
net/bridge/br_private.h | 4 ++--
2 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 2639cc744bca..25aeaedce762 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -594,7 +594,8 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
unsigned long now = jiffies;
/* fastpath: update of existing entry */
- if (unlikely(source != fdb->dst && !fdb->is_sticky)) {
+ if (unlikely(source != fdb->dst &&
+ !test_bit(BR_FDB_STICKY, &fdb->flags))) {
fdb->dst = source;
fdb_modified = true;
/* Take over HW learned entry */
@@ -666,7 +667,7 @@ static int fdb_fill_info(struct sk_buff *skb, const struct net_bridge *br,
ndm->ndm_flags |= NTF_OFFLOADED;
if (fdb->added_by_external_learn)
ndm->ndm_flags |= NTF_EXT_LEARNED;
- if (fdb->is_sticky)
+ if (test_bit(BR_FDB_STICKY, &fdb->flags))
ndm->ndm_flags |= NTF_STICKY;
if (nla_put(skb, NDA_LLADDR, ETH_ALEN, &fdb->key.addr))
@@ -787,7 +788,7 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source,
const u8 *addr, u16 state, u16 flags, u16 vid,
u8 ndm_flags)
{
- u8 is_sticky = !!(ndm_flags & NTF_STICKY);
+ bool is_sticky = !!(ndm_flags & NTF_STICKY);
struct net_bridge_fdb_entry *fdb;
bool modified = false;
@@ -844,8 +845,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source,
modified = true;
}
- if (is_sticky != fdb->is_sticky) {
- fdb->is_sticky = is_sticky;
+ if (is_sticky != test_bit(BR_FDB_STICKY, &fdb->flags)) {
+ change_bit(BR_FDB_STICKY, &fdb->flags);
modified = true;
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index c3160d73e6ed..131e5be58468 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -172,6 +172,7 @@ struct net_bridge_vlan_group {
enum {
BR_FDB_LOCAL,
BR_FDB_STATIC,
+ BR_FDB_STICKY,
};
struct net_bridge_fdb_key {
@@ -186,8 +187,7 @@ struct net_bridge_fdb_entry {
struct net_bridge_fdb_key key;
struct hlist_node fdb_node;
unsigned long flags;
- unsigned char is_sticky:1,
- added_by_user:1,
+ unsigned char added_by_user:1,
added_by_external_learn:1,
offloaded:1;
--
2.43.0
