net: ipv6: Do not keep IPv6 addresses when IPv6 is disabled
If IPv6 is disabled when the option is set to keep IPv6 addresses on link down, userspace is unaware of this as there is no such indication via netlink. The solution is to remove the IPv6 addresses in this case, which results in netlink messages indicating removal of addresses in the usual manner. This fix also makes the behavior consistent with the case of having IPv6 disabled first, which stops IPv6 addresses from being added. Fixes: f1705ec1 ("net: ipv6: Make address flushing on ifdown optional") Signed-off-by: Mike Manning <mmanning@brocade.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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