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| author |   Florian Fainelli <f.fainelli@gmail.com> | 2015-03-09 14:31:20 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-03-09 23:50:20 -0400 |
| commit | aa836df958886e57ff0d43fb3d79d1af4aec0cc8 (patch) | |
| tree | 1b55886cc71a6fd387d42ebc4f08c21a3a6778e9 /include/linux | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | linux-dev-aa836df958886e57ff0d43fb3d79d1af4aec0cc8.tar.xz linux-dev-aa836df958886e57ff0d43fb3d79d1af4aec0cc8.zip | |
net: core: add of_find_net_device_by_node()
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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/of_net.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/of_net.h b/include/linux/of_net.h index 34597c8c1a4c..9cd72aab76fe 100644 --- a/include/linux/of_net.h +++ b/include/linux/of_net.h @@ -9,8 +9,11 @@ #ifdef CONFIG_OF_NET #include <linux/of.h> + +struct net_device; extern int of_get_phy_mode(struct device_node *np); extern const void *of_get_mac_address(struct device_node *np); +extern struct net_device *of_find_net_device_by_node(struct device_node *np); #else static inline int of_get_phy_mode(struct device_node *np) { @@ -21,6 +24,11 @@ static inline const void *of_get_mac_address(struct device_node *np) { return NULL; } + +static inline struct net_device *of_find_net_device_by_node(struct device_node *np) +{ + return NULL; +} #endif #endif /* __LINUX_OF_NET_H */ |