net: mvpp2: fix phylink handling of invalid PHY modes
The .validate phylink callback should empty the supported bitmap when the interface mode is invalid. Cc: Maxime Chevallier <maxime.chevallier@bootlin.com> Cc: Antoine Tenart <antoine.tenart@bootlin.com> Reported-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
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01b3fd5ac9
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0fb628f0f2
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@ -4375,8 +4375,27 @@ static void mvpp2_phylink_validate(struct net_device *dev,
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unsigned long *supported,
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struct phylink_link_state *state)
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{
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struct mvpp2_port *port = netdev_priv(dev);
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__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
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/* Invalid combinations */
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switch (state->interface) {
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case PHY_INTERFACE_MODE_10GKR:
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case PHY_INTERFACE_MODE_XAUI:
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if (port->gop_id != 0)
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goto empty_set;
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break;
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case PHY_INTERFACE_MODE_RGMII:
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case PHY_INTERFACE_MODE_RGMII_ID:
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case PHY_INTERFACE_MODE_RGMII_RXID:
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case PHY_INTERFACE_MODE_RGMII_TXID:
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if (port->gop_id == 0)
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goto empty_set;
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break;
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default:
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break;
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}
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phylink_set(mask, Autoneg);
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phylink_set_port_modes(mask);
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phylink_set(mask, Pause);
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@ -4384,6 +4403,7 @@ static void mvpp2_phylink_validate(struct net_device *dev,
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switch (state->interface) {
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case PHY_INTERFACE_MODE_10GKR:
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case PHY_INTERFACE_MODE_XAUI:
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case PHY_INTERFACE_MODE_NA:
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phylink_set(mask, 10000baseCR_Full);
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phylink_set(mask, 10000baseSR_Full);
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@ -4392,7 +4412,11 @@ static void mvpp2_phylink_validate(struct net_device *dev,
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phylink_set(mask, 10000baseER_Full);
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phylink_set(mask, 10000baseKR_Full);
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/* Fall-through */
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default:
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case PHY_INTERFACE_MODE_RGMII:
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case PHY_INTERFACE_MODE_RGMII_ID:
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case PHY_INTERFACE_MODE_RGMII_RXID:
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case PHY_INTERFACE_MODE_RGMII_TXID:
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case PHY_INTERFACE_MODE_SGMII:
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phylink_set(mask, 10baseT_Half);
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phylink_set(mask, 10baseT_Full);
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phylink_set(mask, 100baseT_Half);
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@ -4404,11 +4428,18 @@ static void mvpp2_phylink_validate(struct net_device *dev,
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phylink_set(mask, 1000baseT_Full);
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phylink_set(mask, 1000baseX_Full);
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phylink_set(mask, 2500baseX_Full);
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break;
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default:
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goto empty_set;
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}
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bitmap_and(supported, supported, mask, __ETHTOOL_LINK_MODE_MASK_NBITS);
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bitmap_and(state->advertising, state->advertising, mask,
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__ETHTOOL_LINK_MODE_MASK_NBITS);
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return;
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empty_set:
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bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
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}
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static void mvpp22_xlg_link_state(struct mvpp2_port *port,
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