netdev - Re: [PATCH net-next 1/6] net: dsa: add support for phylink mac_select

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Date:   Wed, 16 Feb 2022 17:43:02 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Cc:     Ansuel Smith <ansuelsmth@...il.com>, Andrew Lunn <andrew@...n.ch>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        Vivien Didelot <vivien.didelot@...il.com>
Subject: Re: [PATCH net-next 1/6] net: dsa: add support for phylink
 mac_select_pcs()

On Wed, Feb 16, 2022 at 03:06:01PM +0000, Russell King (Oracle) wrote:
> diff --git a/net/dsa/port.c b/net/dsa/port.c
> index bd78192e0e47..1138d40f7897 100644
> --- a/net/dsa/port.c
> +++ b/net/dsa/port.c
> @@ -1011,6 +1011,20 @@ static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config,
>  	}
>  }
>  
> +static struct phylink_pcs *dsa_port_phylink_mac_select_pcs(
> +					struct phylink_config *config,
> +					phy_interface_t interface)

Would be nice to align the arguments to the open parenthesis if possible:

static struct phylink_pcs *
dsa_port_phylink_mac_select_pcs(struct phylink_config *config,
				phy_interface_t interface)

Same 3 lines consumed in both cases, but it's more in line to what was
done for other functions - dsa_slave_fdb_dump, dsa_slave_vlan_check_for_8021q_uppers,
dsa_find_designated_bridge_port_by_vid, etc.

> +{
> +	struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
> +	struct dsa_switch *ds = dp->ds;
> +	struct phylink_pcs *pcs = NULL;
> +
> +	if (ds->ops->phylink_mac_select_pcs)
> +		pcs = ds->ops->phylink_mac_select_pcs(ds, dp->index, interface);
> +
> +	return pcs;
> +}