Re: [PATCH net-next v6 01/10] ipv6: add ip6_del_rt_reason()

On Sat, Aug 08, 2026 at 09:56:33AM +0900, Yuyang Huang wrote:
> Add RTA_DEL_REASON and enum rt_del_reason to the rtnetlink uAPI, and
> add ip6_del_rt_reason(), which takes the reason a route is being
> deleted. It has no skip_notify argument: a caller that records a
> deletion reason wants the notification that carries it.
> 
> The reason is unused for now. Subsequent patches propagate it to the
> deletion path and report it on RTM_DELROUTE.
> 
> Signed-off-by: Yuyang Huang <[email protected]>

"
Discovered by: opus-5, old-prompts · Missed by: sashiko-gemini
Is the statement "the kernel rejects it in requests" accurate for the whole
shared RTA_* namespace?
"

Nitpick. It's accurate for IPv6 which is the only address family that
currently emits the new attribute. It's also accurate for IPv4. Other
address families (MPLS / PHONET / IPMR) can start making use of
strict_start_type in their policies, but it doesn't belong in this
series.

Reviewed-by: Ido Schimmel <[email protected]>