netdev - Re: [PATCH v2 3/7] ipv6 addrconf: rtr_solicits == -1 means unlimited

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Message-ID: <CANP3RGdqvWsRRW=UFnC=z+1QDSajsfmswjs+BZB8jB+1NkGiqQ@mail.gmail.com>
Date:   Tue, 27 Sep 2016 11:23:15 +0900
From:   Maciej Żenczykowski <zenczykowski@...il.com>
To:     Lorenzo Colitti <lorenzo@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Erik Kline <ek@...gle.com>
Subject: Re: [PATCH v2 3/7] ipv6 addrconf: rtr_solicits == -1 means unlimited

> Given that some of this patch checks for == -1, and some of it checks
> for != 0... is it possible that setting the value to something
> unexpected like -3 will cause any issues to the stack? (Other than
> just rendering IPv6 unusable on this interface, which seems like a
> given.)

You shouldn't be able to set it to -3, that's what the extra1 is for...