Commit 1f66b0f0 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller

net: dsa: tag_8021q: introduce a vid_is_dsa_8021q helper

This function returns a boolean denoting whether the VLAN passed as
argument is part of the 1024-3071 range that the dsa_8021q tagging
scheme uses.
Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 54a0ed0d
......@@ -50,6 +50,8 @@ int dsa_8021q_rx_switch_id(u16 vid);
int dsa_8021q_rx_source_port(u16 vid);
bool vid_is_dsa_8021q(u16 vid);
#else
int dsa_port_setup_8021q_tagging(struct dsa_switch *ds, int index,
......@@ -107,6 +109,11 @@ int dsa_8021q_rx_source_port(u16 vid)
return 0;
}
bool vid_is_dsa_8021q(u16 vid)
{
return false;
}
#endif /* IS_ENABLED(CONFIG_NET_DSA_TAG_8021Q) */
#endif /* _NET_DSA_8021Q_H */
......@@ -93,6 +93,13 @@ int dsa_8021q_rx_source_port(u16 vid)
}
EXPORT_SYMBOL_GPL(dsa_8021q_rx_source_port);
bool vid_is_dsa_8021q(u16 vid)
{
return ((vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_RX ||
(vid & DSA_8021Q_DIR_MASK) == DSA_8021Q_DIR_TX);
}
EXPORT_SYMBOL_GPL(vid_is_dsa_8021q);
static int dsa_8021q_restore_pvid(struct dsa_switch *ds, int port)
{
struct bridge_vlan_info vinfo;
......
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