On Mon, 27 Jul 2020 12:21:17 -0700 Roopa Prabhu <ro...@cumulusnetworks.com> wrote:
> - + nla_total_size(1) /* IFLA_PROTO_DOWN */ > + + rtnl_proto_down_size(dev) /* proto down */ Changing the size of a netlink field is an ABI change in the kernel. This has the potential to break existing programs. Wouldn't it be safer to add a new link attribute for the reason rather than overloading the existing attribute?