4.19-stable review patch. If anyone has any objections, please let me know.
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From: Nikolay Aleksandrov nikolay@cumulusnetworks.com
[ Upstream commit e0458d9a733ba71a2821d0c3fc0745baac697db0 ]
Straight-forward convert of the is_sticky field to bitops.
Signed-off-by: Nikolay Aleksandrov nikolay@cumulusnetworks.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: bee2ef946d31 ("net: bridge: br_fdb_external_learn_add(): always set EXT_LEARN") Signed-off-by: Sasha Levin sashal@kernel.org --- 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;