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Message-ID: <d89eefc2-664f-8537-d10e-6fdfbb6823ed@gmail.com>
Date:   Sun, 24 Apr 2022 21:49:45 +0200
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Subject: Re: [PATCH net-next v3 1/2] rtnetlink: add extack support in fdb del
 handlers
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To:     Nikolay Aleksandrov <razor@blackwall.org>, netdev@vger.kernel.org
Cc:     outreachy@lists.linux.dev, roopa@nvidia.com, jdenham@redhat.com,
        sbrivio@redhat.com, jesse.brandeburg@intel.com,
        anthony.l.nguyen@intel.com, davem@davemloft.net, kuba@kernel.org,
        pabeni@redhat.com, vladimir.oltean@nxp.com, claudiu.manoil@nxp.com,
        alexandre.belloni@bootlin.com, shshaikh@marvell.com,
        manishc@marvell.com, intel-wired-lan@lists.osuosl.org,
        linux-kernel@vger.kernel.org, UNGLinuxDriver@microchip.com,
        GR-Linux-NIC-Dev@marvell.com, bridge@lists.linux-foundation.org
References: <cover.1650800975.git.eng.alaamohamedsoliman.am@gmail.com>
 <c3a882e4fb6f9228f704ebe3c1fcace14ee6cdf2.1650800975.git.eng.alaamohamedsoliman.am@gmail.com>
 <7c8367b6-95c7-ea39-fafe-72495f343625@blackwall.org>
From:   Alaa Mohamed <eng.alaamohamedsoliman.am@gmail.com>
In-Reply-To: <7c8367b6-95c7-ea39-fafe-72495f343625@blackwall.org>
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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@gmail.com>
>> ---
>> 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
>>