From: Xin Long <lucien....@gmail.com>
Date: Fri, 17 Nov 2017 14:27:18 +0800
> Now when ip route flush cache and it turn out all fnhe_genid != genid.
> If a redirect/pmtu icmp packet comes and the old fnhe is found and all
> it's members but fnhe_genid will be updated.
>
> Then next time when it looks up route and tries to rebind this fnhe to
> the new dst, the fnhe will be flushed due to fnhe_genid != genid. It
> causes this redirect/pmtu icmp packet acutally not to be applied.
>
> This patch is to also reset fnhe_genid when updating a route cache.
>
> Fixes: 5aad1de5ea2c ("ipv4: use separate genid for next hop exceptions")
> Acked-by: Hannes Frederic Sowa <han...@stressinduktion.org>
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied.
