Hello. On 23/05/16 21:22, Alexander Aring wrote:
In case of sending RA messages we need some way to get the short address from an 802.15.4 6LoWPAN interface. This patch will add a temporary debugfs entry for experimental userspace api.Signed-off-by: Alexander Aring<a...@pengutronix.de> --- net/6lowpan/debugfs.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/net/6lowpan/debugfs.c b/net/6lowpan/debugfs.c index acbaa3d..638ae59 100644 --- a/net/6lowpan/debugfs.c +++ b/net/6lowpan/debugfs.c @@ -245,6 +245,37 @@ static const struct file_operations lowpan_context_fops = { .release = single_release, };+static int lowpan_short_addr_get(void *data, u64 *val)+{ + struct wpan_dev *wdev = data; + + rtnl_lock(); + *val = le16_to_cpu(wdev->short_addr); + rtnl_unlock(); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get, + NULL, "0x%04llx\n"); + +static int lowpan_dev_debugfs_802154_init(const struct net_device *dev, + struct lowpan_dev *ldev) +{ + struct dentry *dentry; + + if (!lowpan_is_ll(dev, LOWPAN_LLTYPE_IEEE802154)) + return 0; + + dentry = debugfs_create_file("short_addr", 0444, ldev->iface_debugfs, + lowpan_802154_dev(dev)->wdev->ieee802154_ptr, + &lowpan_short_addr_fops); + if (!dentry) + return -EINVAL; + + return 0; +} + int lowpan_dev_debugfs_init(struct net_device *dev) { struct lowpan_dev *ldev = lowpan_dev(dev); @@ -272,6 +303,10 @@ int lowpan_dev_debugfs_init(struct net_device *dev) goto remove_root; }+ ret = lowpan_dev_debugfs_802154_init(dev, ldev);+ if (ret < 0) + goto remove_root; + return 0;remove_root:
Reviewed-by: Stefan Schmidt<ste...@osg.samsung.com> regards Stefan Schmidt
