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SubjectRe: [PATCH net-next 4/4] net: dsa: assign a master to slave ports
On Thu, Aug 31, 2017 at 02:37:46PM -0400, Vivien Didelot wrote:
> Because each DSA slave port may use a different DSA master port, add a
> pointer to a master in the slave structure. This is a preparatory patch
> for multiple CPU ports.
>
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
> ---
> net/dsa/dsa_priv.h | 7 ++-----
> net/dsa/slave.c | 33 ++++++++++++++++++---------------
> 2 files changed, 20 insertions(+), 20 deletions(-)
>
> diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
> index 59f155cbbe87..a8cd6cbe4061 100644
> --- a/net/dsa/dsa_priv.h
> +++ b/net/dsa/dsa_priv.h
> @@ -66,6 +66,8 @@ struct dsa_notifier_vlan_info {
> };
>
> struct dsa_slave_priv {
> + struct dsa_master *master;
> +
> /* Copy of the master xmit tagging op for faster access in hot path */
> struct sk_buff * (*xmit)(struct sk_buff *skb,
> struct net_device *dev);
> @@ -179,9 +181,4 @@ extern const struct dsa_device_ops qca_netdev_ops;
> /* tag_trailer.c */
> extern const struct dsa_device_ops trailer_netdev_ops;
>
> -static inline struct net_device *dsa_master_netdev(struct dsa_slave_priv *p)
> -{
> - return p->dp->ds->dst->master->netdev;
> -}
> -

Hi Vivien

Why remove this helper, when it could become p->master->netdev ?

Andrew

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