netlink: Allow ext_ack to carry non-error messages
The NLMSGERR API already carries data (eg, a cookie) on the success path. Allow a message string to be returned as well. Signed-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Showing
想要评论请 注册 或 登录