Re: [PATCH net-next v3 1/2] rtnetlink: add extack support in fdb del handlers

[Alaa Mohamed <eng.alaamohamedsoliman.am@xxxxxxxxx>]

On ٢٤‏/٤‏/٢٠٢٢ ٢١:٠٢, Nikolay Aleksandrov wrote:
> On 24/04/2022 15:09, Alaa Mohamed wrote:
> > Add extack support to .ndo_fdb_del in netdevice.h and
> > all related methods.
> >
> > Signed-off-by: Alaa Mohamed <eng.alaamohamedsoliman.am@xxxxxxxxx>
> > ---
> > changes in V3:
> >          fix errors reported by checkpatch.pl
> > ---
> >   drivers/net/ethernet/intel/ice/ice_main.c        | 4 ++--
> >   drivers/net/ethernet/mscc/ocelot_net.c           | 4 ++--
> >   drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 2 +-
> >   drivers/net/macvlan.c                            | 2 +-
> >   drivers/net/vxlan/vxlan_core.c                   | 2 +-
> >   include/linux/netdevice.h                        | 2 +-
> >   net/bridge/br_fdb.c                              | 2 +-
> >   net/bridge/br_private.h                          | 2 +-
> >   net/core/rtnetlink.c                             | 4 ++--
> >   9 files changed, 12 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
> > index d768925785ca..7b55d8d94803 100644
> > --- a/drivers/net/ethernet/intel/ice/ice_main.c
> > +++ b/drivers/net/ethernet/intel/ice/ice_main.c
> > @@ -5678,10 +5678,10 @@ ice_fdb_add(struct ndmsg *ndm, struct nlattr __always_unused *tb[],
> >   static int
> >   ice_fdb_del(struct ndmsg *ndm, __always_unused struct nlattr *tb[],
> >   	    struct net_device *dev, const unsigned char *addr,
> > -	    __always_unused u16 vid)
> > +	    __always_unused u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	int err;
> > -
> > +
> What's changed here?

In the previous version, I removed the blank line after "int err;" and 
you said I shouldn't so I added blank line.

> >   	if (ndm->ndm_state & NUD_PERMANENT) {
> >   		netdev_err(dev, "FDB only supports static addresses\n");
> >   		return -EINVAL;
> > diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
> > index 247bc105bdd2..e07c64e3159c 100644
> > --- a/drivers/net/ethernet/mscc/ocelot_net.c
> > +++ b/drivers/net/ethernet/mscc/ocelot_net.c
> > @@ -774,14 +774,14 @@ static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
> >
> >   static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
> >   			       struct net_device *dev,
> > -			       const unsigned char *addr, u16 vid)
> > +			       const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	struct ocelot_port_private *priv = netdev_priv(dev);
> >   	struct ocelot_port *ocelot_port = &priv->port;
> >   	struct ocelot *ocelot = ocelot_port->ocelot;
> >   	int port = priv->chip_port;
> >
> > -	return ocelot_fdb_del(ocelot, port, addr, vid, ocelot_port->bridge);
> > +	return ocelot_fdb_del(ocelot, port, addr, vid, ocelot_port->bridge, extack);
> >   }
> >
> >   static int ocelot_port_fdb_dump(struct sk_buff *skb,
> > diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> > index d320567b2cca..51fa23418f6a 100644
> > --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> > +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
> > @@ -368,7 +368,7 @@ static int qlcnic_set_mac(struct net_device *netdev, void *p)
> >
> >   static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
> >   			struct net_device *netdev,
> > -			const unsigned char *addr, u16 vid)
> > +			const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	struct qlcnic_adapter *adapter = netdev_priv(netdev);
> >   	int err = -EOPNOTSUPP;
> > diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
> > index 069e8824c264..ffd34d9f7049 100644
> > --- a/drivers/net/macvlan.c
> > +++ b/drivers/net/macvlan.c
> > @@ -1017,7 +1017,7 @@ static int macvlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
> >
> >   static int macvlan_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
> >   			   struct net_device *dev,
> > -			   const unsigned char *addr, u16 vid)
> > +			   const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	struct macvlan_dev *vlan = netdev_priv(dev);
> >   	int err = -EINVAL;
> > diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
> > index de97ff98d36e..cf2f60037340 100644
> > --- a/drivers/net/vxlan/vxlan_core.c
> > +++ b/drivers/net/vxlan/vxlan_core.c
> > @@ -1280,7 +1280,7 @@ int __vxlan_fdb_delete(struct vxlan_dev *vxlan,
> >   /* Delete entry (via netlink) */
> >   static int vxlan_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
> >   			    struct net_device *dev,
> > -			    const unsigned char *addr, u16 vid)
> > +			    const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	struct vxlan_dev *vxlan = netdev_priv(dev);
> >   	union vxlan_addr ip;
> > diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> > index 28ea4f8269d4..d0d2a8f33c73 100644
> > --- a/include/linux/netdevice.h
> > +++ b/include/linux/netdevice.h
> > @@ -1509,7 +1509,7 @@ struct net_device_ops {
> >   					       struct nlattr *tb[],
> >   					       struct net_device *dev,
> >   					       const unsigned char *addr,
> > -					       u16 vid);
> > +					       u16 vid, struct netlink_ext_ack *extack);
> >   	int			(*ndo_fdb_dump)(struct sk_buff *skb,
> >   						struct netlink_callback *cb,
> >   						struct net_device *dev,
> > diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
> > index 6ccda68bd473..5bfce2e9a553 100644
> > --- a/net/bridge/br_fdb.c
> > +++ b/net/bridge/br_fdb.c
> > @@ -1110,7 +1110,7 @@ static int __br_fdb_delete(struct net_bridge *br,
> >   /* Remove neighbor entry with RTM_DELNEIGH */
> >   int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
> >   		  struct net_device *dev,
> > -		  const unsigned char *addr, u16 vid)
> > +		  const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack)
> >   {
> >   	struct net_bridge_vlan_group *vg;
> >   	struct net_bridge_port *p = NULL;
> > diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
> > index 18ccc3d5d296..95348c1c9ce5 100644
> > --- a/net/bridge/br_private.h
> > +++ b/net/bridge/br_private.h
> > @@ -780,7 +780,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
> >   		   const unsigned char *addr, u16 vid, unsigned long flags);
> >
> >   int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
> > -		  struct net_device *dev, const unsigned char *addr, u16 vid);
> > +		  struct net_device *dev, const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack);
> This is way too long (111 chars) and checkpatch should've complained about it.
> WARNING: line length of 111 exceeds 100 columns
> #234: FILE: net/bridge/br_private.h:782:
> +		  struct net_device *dev, const unsigned char *addr, u16 vid, struct netlink_ext_ack *extack);

I will fix it.

> >   int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
> >   	       const unsigned char *addr, u16 vid, u16 nlh_flags,
> >   	       struct netlink_ext_ack *extack);
> > diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
> > index 4041b3e2e8ec..99b30ae58a47 100644
> > --- a/net/core/rtnetlink.c
> > +++ b/net/core/rtnetlink.c
> > @@ -4223,7 +4223,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,
> >   		const struct net_device_ops *ops = br_dev->netdev_ops;
> >
> >   		if (ops->ndo_fdb_del)
> > -			err = ops->ndo_fdb_del(ndm, tb, dev, addr, vid);
> > +			err = ops->ndo_fdb_del(ndm, tb, dev, addr, vid, extack);
> >
> >   		if (err)
> >   			goto out;
> > @@ -4235,7 +4235,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,
> >   	if (ndm->ndm_flags & NTF_SELF) {
> >   		if (dev->netdev_ops->ndo_fdb_del)
> >   			err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr,
> > -							   vid);
> > +							   vid, extack);
> >   		else
> >   			err = ndo_dflt_fdb_del(ndm, tb, dev, addr, vid);
> >
> > --
> > 2.36.0