netdev - Re: [PATCH net-next 1/6] net: dsa: export dsa_slave_dev_check and dsa_slave_to

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Message-ID: <71b974ca-66b4-b697-28fc-106cad586fba@gmail.com>
Date:   Sun, 3 May 2020 15:45:42 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>, netdev@...r.kernel.org
Cc:     andrew@...n.ch, vivien.didelot@...il.com, vinicius.gomes@...el.com,
        po.liu@....com, xiaoliang.yang@....com, mingkai.hu@....com,
        christian.herber@....com, claudiu.manoil@....com,
        vladimir.oltean@....com, alexandru.marginean@....com,
        vlad@...lov.dev, jiri@...lanox.com, idosch@...lanox.com,
        kuba@...nel.org
Subject: Re: [PATCH net-next 1/6] net: dsa: export dsa_slave_dev_check and
 dsa_slave_to_port



On 5/3/2020 2:10 PM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> To be able to perform mirroring and redirection through tc-flower
> offloads (the implementation of which is given raw access to the
> flow_cls_offload structure), switch drivers need to be able to call
> these functions on act->dev.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> ---
> Changes from RFC:
> None.
> 
>  include/net/dsa.h  | 2 ++
>  net/dsa/dsa_priv.h | 8 --------
>  net/dsa/slave.c    | 9 +++++++++
>  3 files changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/include/net/dsa.h b/include/net/dsa.h
> index fb3f9222f2a1..62beaa4c234e 100644
> --- a/include/net/dsa.h
> +++ b/include/net/dsa.h
> @@ -739,6 +739,8 @@ int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data);
>  int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
>  int dsa_port_get_phy_sset_count(struct dsa_port *dp);
>  void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up);
> +bool dsa_slave_dev_check(const struct net_device *dev);
> +struct dsa_port *dsa_slave_to_port(const struct net_device *dev);
>  
>  struct dsa_tag_driver {
>  	const struct dsa_device_ops *ops;
> diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
> index 6d9a1ef65fa0..32bf570fd71c 100644
> --- a/net/dsa/dsa_priv.h
> +++ b/net/dsa/dsa_priv.h
> @@ -173,19 +173,11 @@ extern const struct dsa_device_ops notag_netdev_ops;
>  void dsa_slave_mii_bus_init(struct dsa_switch *ds);
>  int dsa_slave_create(struct dsa_port *dp);
>  void dsa_slave_destroy(struct net_device *slave_dev);
> -bool dsa_slave_dev_check(const struct net_device *dev);
>  int dsa_slave_suspend(struct net_device *slave_dev);
>  int dsa_slave_resume(struct net_device *slave_dev);
>  int dsa_slave_register_notifier(void);
>  void dsa_slave_unregister_notifier(void);
>  
> -static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
> -{
> -	struct dsa_slave_priv *p = netdev_priv(dev);
> -
> -	return p->dp;
> -}
> -
>  static inline struct net_device *
>  dsa_slave_to_master(const struct net_device *dev)
>  {
> diff --git a/net/dsa/slave.c b/net/dsa/slave.c
> index ba8bf90dc0cc..4eeb5b47ef99 100644
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -62,6 +62,14 @@ static int dsa_slave_get_iflink(const struct net_device *dev)
>  	return dsa_slave_to_master(dev)->ifindex;
>  }
>  
> +struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
> +{
> +	struct dsa_slave_priv *p = netdev_priv(dev);
> +
> +	return p->dp;
> +}
> +EXPORT_SYMBOL_GPL(dsa_slave_to_port);

You could probably make this a static inline in net/dsa.h, too. With or
without doing that:

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian