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Subject[PATCH net-next v2 05/10] net: dsa: added dsa_net_device_to_dsa_port()
Date
Allowing dsa drivers to attach sysfs nodes.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
---
include/net/dsa.h | 1 +
net/dsa/slave.c | 10 ++++++++++
2 files changed, 11 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 88da272d20d0..a71c0a2401ee 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -450,6 +450,7 @@ void unregister_switch_driver(struct dsa_switch_driver *type);
struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev);

struct net_device *dsa_dev_to_net_device(struct device *dev);
+struct dsa_port *dsa_net_device_to_dsa_port(struct net_device *dev);

/* Keep inline for faster access in hot path */
static inline bool netdev_uses_dsa(struct net_device *dev)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 9507bd38cf04..40410f1740de 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -209,6 +209,16 @@ static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return -EOPNOTSUPP;
}

+struct dsa_port *dsa_net_device_to_dsa_port(struct net_device *dev)
+{
+ struct dsa_slave_priv *p = netdev_priv(dev);
+
+ if (!dsa_slave_dev_check(dev))
+ return NULL;
+ return p->dp;
+}
+EXPORT_SYMBOL_GPL(dsa_net_device_to_dsa_port);
+
static int dsa_slave_port_attr_set(struct net_device *dev,
const struct switchdev_attr *attr,
struct switchdev_trans *trans)
--
2.11.0
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