forked from luck/tmp_suning_uos_patched
aa836df958
Add a helper function which allows getting the struct net_device pointer associated with a given struct device_node pointer. This is useful for instance for DSA Ethernet devices not backed by a platform_device, but a PCI device. Since we need to access net_class which is not accessible outside of net/core/net-sysfs.c, this helper function is also added here and gated with CONFIG_OF_NET. Network devices initialized with SET_NETDEV_DEV() are also taken into account by checking for dev->parent first and then falling back to checking the device pointer within struct net_device. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
35 lines
708 B
C
35 lines
708 B
C
/*
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* OF helpers for network devices.
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*
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* This file is released under the GPLv2
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*/
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#ifndef __LINUX_OF_NET_H
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#define __LINUX_OF_NET_H
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#ifdef CONFIG_OF_NET
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#include <linux/of.h>
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struct net_device;
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extern int of_get_phy_mode(struct device_node *np);
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extern const void *of_get_mac_address(struct device_node *np);
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extern struct net_device *of_find_net_device_by_node(struct device_node *np);
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#else
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static inline int of_get_phy_mode(struct device_node *np)
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{
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return -ENODEV;
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}
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static inline const void *of_get_mac_address(struct device_node *np)
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{
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return NULL;
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}
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static inline struct net_device *of_find_net_device_by_node(struct device_node *np)
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{
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return NULL;
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}
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#endif
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#endif /* __LINUX_OF_NET_H */
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