From 0db7fba746b5608c30d4e2ba1c99a2a309e2d288 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 8 Nov 2019 15:22:48 +0000 Subject: [PATCH 649/660] net: phylink: re-split __phylink_connect_phy() In order to support Clause 45 PHYs on SFP+ modules, which have an indeterminant phy interface mode, we need to be able to call phylink_bringup_phy() with a different interface mode to that used when binding the PHY. Reduce __phylink_connect_phy() to an attach operation, and move the call to phylink_bringup_phy() to its call sites. Signed-off-by: Russell King --- drivers/net/phy/phylink.c | 39 ++++++++++++++++++++++++--------------- 1 file changed, 24 insertions(+), 15 deletions(-) --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -728,11 +728,9 @@ static int phylink_bringup_phy(struct ph return 0; } -static int __phylink_connect_phy(struct phylink *pl, struct phy_device *phy, - phy_interface_t interface) +static int phylink_attach_phy(struct phylink *pl, struct phy_device *phy, + phy_interface_t interface) { - int ret; - if (WARN_ON(pl->link_an_mode == MLO_AN_FIXED || (pl->link_an_mode == MLO_AN_INBAND && phy_interface_mode_is_8023z(interface)))) @@ -741,15 +739,7 @@ static int __phylink_connect_phy(struct if (pl->phydev) return -EBUSY; - ret = phy_attach_direct(pl->netdev, phy, 0, interface); - if (ret) - return ret; - - ret = phylink_bringup_phy(pl, phy); - if (ret) - phy_detach(phy); - - return ret; + return phy_attach_direct(pl->netdev, phy, 0, interface); } /** @@ -769,13 +759,23 @@ static int __phylink_connect_phy(struct */ int phylink_connect_phy(struct phylink *pl, struct phy_device *phy) { + int ret; + /* Use PHY device/driver interface */ if (pl->link_interface == PHY_INTERFACE_MODE_NA) { pl->link_interface = phy->interface; pl->link_config.interface = pl->link_interface; } - return __phylink_connect_phy(pl, phy, pl->link_interface); + ret = phylink_attach_phy(pl, phy, pl->link_interface); + if (ret < 0) + return ret; + + ret = phylink_bringup_phy(pl, phy); + if (ret) + phy_detach(phy); + + return ret; } EXPORT_SYMBOL_GPL(phylink_connect_phy); @@ -1759,8 +1759,17 @@ static void phylink_sfp_link_up(void *up static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy) { struct phylink *pl = upstream; + int ret; - return __phylink_connect_phy(upstream, phy, pl->link_config.interface); + ret = phylink_attach_phy(pl, phy, pl->link_config.interface); + if (ret < 0) + return ret; + + ret = phylink_bringup_phy(pl, phy); + if (ret) + phy_detach(phy); + + return ret; } static void phylink_sfp_disconnect_phy(void *upstream)