From: Daniel Borkmann <dan...@iogearbox.net> Date: Mon, 28 Nov 2016 23:16:54 +0100
> Add an IFLA_XDP_FLAGS attribute that can be passed for setting up > XDP along with IFLA_XDP_FD, which eventually allows user space to > implement typical add/replace/delete logic for programs. Right now, > calling into dev_change_xdp_fd() will always replace previous programs. > > When passed XDP_FLAGS_UPDATE_IF_NOEXIST, we can handle this more > graceful when requested by returning -EBUSY in case we try to > attach a new program, but we find that another one is already > attached. This will be used by upcoming front-end for iproute2 as > well. > > Signed-off-by: Daniel Borkmann <dan...@iogearbox.net> > Acked-by: Alexei Starovoitov <a...@kernel.org> Applied, thanks Daniel.
