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Commit 038890fe authored by Thomas Graf's avatar Thomas Graf Committed by David S. Miller
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[RTNL]: Improve error codes for unsupported operations 



The most common trigger of these errors is that the
config option hasn't been enable wich would make the
functionality available. Therefore returning EOPNOTSUPP
gives a better idea on what is going wrong.

Signed-off-by: default avatarThomas Graf <tgraf@suug.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 716ea3a7

net/core/rtnetlink.c

+3 −3
Original line number Diff line number Diff line
@@ -862,7 +862,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) 


	type = nlh->nlmsg_type;

	if (type > RTM_MAX)

		return -EINVAL;

		return -EOPNOTSUPP;



	type -= RTM_BASE;
@@ -885,7 +885,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) 


		dumpit = rtnl_get_dumpit(family, type);

		if (dumpit == NULL)

			return -EINVAL;

			return -EOPNOTSUPP;



		return netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);

	}
@@ -913,7 +913,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) 


	doit = rtnl_get_doit(family, type);

	if (doit == NULL)

		return -EINVAL;

		return -EOPNOTSUPP;



	return doit(skb, nlh, (void *)&rta_buf[0]);

}