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net: qualcomm: rmnet: Implement fill_info
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This is needed to query the mux_id and flags of a rmnet device.

Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Subash Abhinov Kasiviswanathan authored and David S. Miller committed Mar 22, 2018
1 parent 14452ca commit be81a85
Showing 1 changed file with 30 additions and 0 deletions.
30 changes: 30 additions & 0 deletions drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
Original file line number Diff line number Diff line change
@@ -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 */

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