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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-02-13 22:43:18 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-14 17:38:11 -0800 |
| commit | 31046a5fd92c57d99e8861f3dc56a2584787b473 (patch) | |
| tree | 95c43c68688376535eb83c805231d55477b0e874 /net/dsa/slave.c | |
| parent | dcbdf1350e3312c199dbc6a76f41cf8f67e8c09c (diff) | |
| download | linux-31046a5fd92c57d99e8861f3dc56a2584787b473.tar.gz | |
net: dsa: propagate extack to .port_vlan_add
Allow drivers to communicate their restrictions to user space directly,
instead of printing to the kernel log. Where the conversion would have
been lossy and things like VLAN ID could no longer be conveyed (due to
the lack of support for printf format specifier in netlink extack), I
chose to keep the messages in full form to the kernel log only, and
leave it up to individual driver maintainers to move more messages to
extack.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/slave.c')
| -rw-r--r-- | net/dsa/slave.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 8c9a41a7209a..9ec487b63e13 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -357,11 +357,14 @@ static int dsa_slave_vlan_add(struct net_device *dev, rcu_read_lock(); err = dsa_slave_vlan_check_for_8021q_uppers(dev, &vlan); rcu_read_unlock(); - if (err) + if (err) { + NL_SET_ERR_MSG_MOD(extack, + "Port already has a VLAN upper with this VID"); return err; + } } - err = dsa_port_vlan_add(dp, &vlan); + err = dsa_port_vlan_add(dp, &vlan, extack); if (err) return err; @@ -371,7 +374,7 @@ static int dsa_slave_vlan_add(struct net_device *dev, */ vlan.flags &= ~BRIDGE_VLAN_INFO_PVID; - err = dsa_port_vlan_add(dp->cpu_dp, &vlan); + err = dsa_port_vlan_add(dp->cpu_dp, &vlan, extack); if (err) return err; @@ -1287,17 +1290,25 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto, /* This API only allows programming tagged, non-PVID VIDs */ .flags = 0, }; + struct netlink_ext_ack extack = {0}; int ret; /* User port... */ - ret = dsa_port_vlan_add(dp, &vlan); - if (ret) + ret = dsa_port_vlan_add(dp, &vlan, &extack); + if (ret) { + if (extack._msg) + netdev_err(dev, "%s\n", extack._msg); return ret; + } /* And CPU port... */ - ret = dsa_port_vlan_add(dp->cpu_dp, &vlan); - if (ret) + ret = dsa_port_vlan_add(dp->cpu_dp, &vlan, &extack); + if (ret) { + if (extack._msg) + netdev_err(dev, "CPU port %d: %s\n", dp->cpu_dp->index, + extack._msg); return ret; + } return vlan_vid_add(master, proto, vid); } |