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| author | Vlad Yasevich <vyasevich@gmail.com> | 2014-10-03 11:29:17 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-05 21:21:36 -0400 |
| commit | 3df6bf45ec008942f16f1814123c4bdebcf50741 (patch) | |
| tree | b32c86020856bb9ad6065d28c2bff015efeb54c0 /net/bridge | |
| parent | 96a20d9d7fff7068a2233b00379f0778a150bf86 (diff) | |
| download | linux-3df6bf45ec008942f16f1814123c4bdebcf50741.tar.gz linux-3df6bf45ec008942f16f1814123c4bdebcf50741.tar.bz2 linux-3df6bf45ec008942f16f1814123c4bdebcf50741.zip | |
bridge: Simplify pvid checks.
Currently, if the pvid is not set, we return an illegal vlan value
even though the pvid value is set to 0. Since pvid of 0 is currently
invalid, just return 0 instead. This makes the current and future
checks simpler.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
| -rw-r--r-- | net/bridge/br_private.h | 7 | ||||
| -rw-r--r-- | net/bridge/br_vlan.c | 4 |
2 files changed, 4 insertions, 7 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 5a347eb1d139..f671561b3053 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -643,11 +643,8 @@ static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) static inline u16 br_get_pvid(const struct net_port_vlans *v) { - /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if - * vid wasn't set - */ smp_rmb(); - return v->pvid ?: VLAN_N_VID; + return v->pvid; } static inline int br_vlan_enabled(struct net_bridge *br) @@ -746,7 +743,7 @@ static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) } static inline u16 br_get_pvid(const struct net_port_vlans *v) { - return VLAN_N_VID; /* Returns invalid vid */ + return 0; } static inline int br_vlan_enabled(struct net_bridge *br) diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index dfa7c9a7e193..e11c9932e706 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -223,7 +223,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, * See if pvid is set on this port. That tells us which * vlan untagged or priority-tagged traffic belongs to. */ - if (pvid == VLAN_N_VID) + if (!pvid) goto drop; /* PVID is set on this port. Any untagged or priority-tagged @@ -292,7 +292,7 @@ bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) if (!*vid) { *vid = br_get_pvid(v); - if (*vid == VLAN_N_VID) + if (!*vid) return false; return true; |