ieee802154: allow netns create of lowpan interface

This patch reverts commit f9d1ce8f81eb ("ieee802154: fix netns settings").
The lowpan interface need to be created inside the net namespace where
the wpan interface is available. The wpan namespace can be changed only
by nl802154 before. Without this patch it's not possible to create a
lowpan interface for a wpan interface which isn't inside init_net
namespace.

Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index 935ab932e841205b9584f2c00c142ac2da9636cf..d7efbf0dad20f8c4d3c42d039eff528c678bc04c 100644 (file)
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -130,8 +130,7 @@ static int lowpan_newlink(struct net *src_net, struct net_device *ldev,
 
        pr_debug("adding new link\n");
 
-       if (!tb[IFLA_LINK] ||
-           !net_eq(dev_net(ldev), &init_net))
+       if (!tb[IFLA_LINK])
                return -EINVAL;
        /* find and hold wpan device */
        wdev = dev_get_by_index(dev_net(ldev), nla_get_u32(tb[IFLA_LINK]));