selftests: tc-testing: add cls_route no-routing-attribute change tests

Add a boundary pair for route4 change without a routing attribute:

- a classid-only change of a wildcard filter (handle 0xffff8000) is a
  metadata-only update and must succeed;
- the same change on a non-wildcard handle (0x10001) would rekey the
  filter to the wildcard bucket, leaving the handle userspace stored stale,
  and must be rejected with -EINVAL.

The change of a wildcard filter is the flow iproute2 uses by default
("tc filter add ... route classid X:Y" gives handle 0xffff8000).

Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/QDISC-0JB3.v1.20260923100921@mojatatu.com.2
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions