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authorFlorian Fainelli <f.fainelli@gmail.com>2015-03-10 00:31:20 +0300
committerDavid S. Miller <davem@davemloft.net>2015-03-10 06:50:20 +0300
commitaa836df958886e57ff0d43fb3d79d1af4aec0cc8 (patch)
tree1b55886cc71a6fd387d42ebc4f08c21a3a6778e9 /include/linux/of_net.h
parent3cef5c5b0b56f3f90b0e9ff8d3f8dc57f464cc14 (diff)
downloadlinux-aa836df958886e57ff0d43fb3d79d1af4aec0cc8.tar.xz
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/of_net.h')
-rw-r--r--include/linux/of_net.h8
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 */