On Tue, Aug 27, 2024 at 02:18:08PM +0300, Ido Schimmel wrote: > The function returns a value that is used to initialize 'flowi4_tos' > before being passed to the FIB lookup API in the following call chain: > > xfrm_bundle_create() > tos = xfrm_get_tos(fl, family) > xfrm_dst_lookup(..., tos, ...) > __xfrm_dst_lookup(..., tos, ...) > xfrm4_dst_lookup(..., tos, ...) > __xfrm4_dst_lookup(..., tos, ...) > fl4->flowi4_tos = tos > __ip_route_output_key(net, fl4) > > Unmask the upper DSCP bits so that in the future the output route lookup > could be performed according to the full DSCP value. Reviewed-by: Guillaume Nault <gnault@xxxxxxxxxx>
