Laszlo Attila Toth wrote:
Interface groups let handle different interfaces together
especially in netfilter modules.
Modified net device structure and netlink interface.
@@ -891,6 +895,13 @@ static int do_setlink(struct net_device *dev, struct
ifinfomsg *ifm,
}
}
+ if (tb[IFLA_IFGROUP]) {
+ write_lock_bh(&dev_base_lock);
+ dev->ifgroup = nla_get_u32(tb[IFLA_IFGROUP]);
+ write_unlock_bh(&dev_base_lock);
+ modified = 1;
+ }
The locking looks unnecessary, the rtnl should be enough.
I'm not even sure why its used for operstate and linkmode,
AFAICS they are also protected by the rtnl.
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