Re: [PATCH v2 net-next] ipv6: annotate data-races around devconf->rpl_seg_enabled

[Jakub Kicinski]

On Wed, 27 Aug 2025 16:12:43 +0800 Yue Haibing wrote:
> Also initializes extra1 and extra2 to SYSCTL_ZERO and SYSCTL_ONE
> respectively to avoid negative value writes, which may lead to
> unexpected results in ipv6_rpl_srh_rcv().

By unexpected results you mean that min() is intended to return 0
when either value is zero, but if one of the values is negative it
will in fact return non-zero?

That's a fair point, but I'm not sure whether we should be sending
that up as a fix. It's more of a sanity check that prevents
unintentional misconfiguration.. Please split this patch into two
separate ones, and send the minmax one without a Fixes tag.
Please include more of the explanation I have provided in the first
paragraph in the commit message, "unexpected results" is too vague
by itself.