On 2018-09-08 9:31 p.m., Al Viro wrote:
From: Al Viro <v...@zeniv.linux.org.uk>Operation makes no sense. Nothing will actually break if we do so (depth limit in u32_classify() will prevent infinite loops), but according to maintainers it's best prohibited outright. NOTE: doing so guarantees that u32_destroy() will trigger the call of u32_destroy_hnode(); we might want to make that unconditional. Test: tc qdisc add dev eth0 ingress tc filter add dev eth0 parent ffff: protocol ip prio 100 u32 \ link 800: offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 6 ff should fail with Error: cls_u32: Not linking to root node Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
Tested-by: Jamal Hadi Salim <j...@mojatatu.com> Acked-by: Jamal Hadi Salim <j...@mojatatu.com> cheers, jamal
