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[net-next,v4,5/5] net: qualcomm: rmnet: Implement fill_info

Message ID 1521683295-22935-6-git-send-email-subashab@codeaurora.org
State Accepted, archived
Delegated to: David Miller
Headers show
Series net: qualcomm: rmnet: Updates 2018-03-12 | expand

Commit Message

Subash Abhinov Kasiviswanathan March 22, 2018, 1:48 a.m. UTC 
This is needed to query the mux_id and flags of a rmnet device.

Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
---
 drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index c5b7b2a..38d9356 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -339,6 +339,35 @@  static size_t rmnet_get_size(const struct net_device *dev)
 		nla_total_size(sizeof(struct ifla_rmnet_flags));
 }
 
+static int rmnet_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct rmnet_priv *priv = netdev_priv(dev);
+	struct net_device *real_dev;
+	struct ifla_rmnet_flags f;
+	struct rmnet_port *port;
+
+	real_dev = priv->real_dev;
+
+	if (!rmnet_is_real_dev_registered(real_dev))
+		return -ENODEV;
+
+	if (nla_put_u16(skb, IFLA_RMNET_MUX_ID, priv->mux_id))
+		goto nla_put_failure;
+
+	port = rmnet_get_port_rtnl(real_dev);
+
+	f.flags = port->data_format;
+	f.mask  = ~0;
+
+	if (nla_put(skb, IFLA_RMNET_FLAGS, sizeof(f), &f))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
 struct rtnl_link_ops rmnet_link_ops __read_mostly = {
 	.kind		= "rmnet",
 	.maxtype	= __IFLA_RMNET_MAX,
@@ -350,6 +379,7 @@  struct rtnl_link_ops rmnet_link_ops __read_mostly = {
 	.get_size	= rmnet_get_size,
 	.changelink     = rmnet_changelink,
 	.policy		= rmnet_policy,
+	.fill_info	= rmnet_fill_info,
 };
 
 /* Needs either rcu_read_lock() or rtnl lock */