From: Alexander Sverdlin alexander.sverdlin@nokia.com
stable inclusion from linux-4.19.155 commit e2f30d7ff0f1efb86600cc8e388f00db16629322
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commit 179f5dc36b0a1aa31538d7d8823deb65c39847b3 upstream.
The PHYs must be registered once in device probe function, not in device open callback because it's only possible to register them once.
Fixes: a25e278020bf ("staging: octeon: support fixed-link phys") Signed-off-by: Alexander Sverdlin alexander.sverdlin@nokia.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20201016101858.11374-1-alexander.sverdlin@nokia.co... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/staging/octeon/ethernet-mdio.c | 6 ------ drivers/staging/octeon/ethernet.c | 9 +++++++++ 2 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c index f67f95043887..5761a31e2318 100644 --- a/drivers/staging/octeon/ethernet-mdio.c +++ b/drivers/staging/octeon/ethernet-mdio.c @@ -152,12 +152,6 @@ int cvm_oct_phy_setup_device(struct net_device *dev)
phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0); if (!phy_node && of_phy_is_fixed_link(priv->of_node)) { - int rc; - - rc = of_phy_register_fixed_link(priv->of_node); - if (rc) - return rc; - phy_node = of_node_get(priv->of_node); } if (!phy_node) diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 9b15c9ed844b..b680e5785ae3 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -13,6 +13,7 @@ #include <linux/phy.h> #include <linux/slab.h> #include <linux/interrupt.h> +#include <linux/of_mdio.h> #include <linux/of_net.h> #include <linux/if_ether.h> #include <linux/if_vlan.h> @@ -875,6 +876,14 @@ static int cvm_oct_probe(struct platform_device *pdev) break; }
+ if (priv->of_node && of_phy_is_fixed_link(priv->of_node)) { + if (of_phy_register_fixed_link(priv->of_node)) { + netdev_err(dev, "Failed to register fixed link for interface %d, port %d\n", + interface, priv->port); + dev->netdev_ops = NULL; + } + } + if (!dev->netdev_ops) { free_netdev(dev); } else if (register_netdev(dev) < 0) {