Commit 1889b0e7 authored by Nicolas Dichtel's avatar Nicolas Dichtel Committed by David S. Miller
Browse files

rtnl/do_setlink(): set modified when IFLA_LINKMODE is updated 



The only effect of this patch is to print a warning if IFLA_LINKMODE is updated
and a following change fails.

Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5d1180fc

net/core/rtnetlink.c

+5 −1
Original line number Diff line number Diff line
@@ -1624,8 +1624,12 @@ static int do_setlink(const struct sk_buff *skb, 
		set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));



	if (tb[IFLA_LINKMODE]) {

		unsigned char value = nla_get_u8(tb[IFLA_LINKMODE]);



		write_lock_bh(&dev_base_lock);

		dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);

		if (dev->link_mode ^ value)

			modified = 1;

		dev->link_mode = value;

		write_unlock_bh(&dev_base_lock);

	}