netdev - Re: [PATCH v2] net: dsa: mt7530: add support for in-band link status

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Message-ID: <20220919183622.205ccabf@kernel.org>
Date:   Mon, 19 Sep 2022 18:36:22 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     Russell King <linux@...linux.org.uk>,
        linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Alexander 'lynxis' Couzens <lynxis@...0.eu>
Subject: Re: [PATCH v2] net: dsa: mt7530: add support for in-band link
 status

On Sun, 11 Sep 2022 21:45:30 +0100 Daniel Golle wrote:
>  static void mt7531_pcs_get_state(struct phylink_pcs *pcs,
>  				 struct phylink_link_state *state)
>  {
>  	struct mt7530_priv *priv = pcs_to_mt753x_pcs(pcs)->priv;
>  	int port = pcs_to_mt753x_pcs(pcs)->port;
> +	unsigned int val;
>  
> -	if (state->interface == PHY_INTERFACE_MODE_SGMII)
> +	if (state->interface == PHY_INTERFACE_MODE_SGMII) {
>  		mt7531_sgmii_pcs_get_state_an(priv, port, state);
> -	else
> -		state->link = false;
> +		return;
> +	} else if ((state->interface == PHY_INTERFACE_MODE_1000BASEX) ||
> +		   (state->interface == PHY_INTERFACE_MODE_2500BASEX)) {
> +		mt7531_sgmii_pcs_get_state_inband(priv, port, state);
> +		return;
> +	}
> +
> +	state->link = false;

drivers/net/dsa/mt7530.c:3040:15: warning: unused variable 'val' [-Wunused-variable]
        unsigned int val;
                     ^