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SubjectRe: [PATCH] [net-next] ipvlan: fix building with modular IPV6
On Mon, Feb 26, 2018 at 10:41 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> We no longer depend on IPV6, but that now causes a link error with
> CONFIG_IPV6=m and CONFIG_IPVLAN=y:
>
> drivers/net/ipvlan/ipvlan_core.o: In function `ipvlan_queue_xmit':
> ipvlan_core.c:(.text+0x1440): undefined reference to `ip6_route_output_flags'
> drivers/net/ipvlan/ipvlan_core.o: In function `ipvlan_l3_rcv':
> ipvlan_core.c:(.text+0x1818): undefined reference to `ip6_route_input_lookup'
>
> This adds back the dependency on IPV6, with the option of building without
> IPV6, but forcing IPVLAN to be a module when IPV6 is a module.
>
> Fixes: 94333fac44d1 ("ipvlan: drop ipv6 dependency")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/net/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index d88b78a17440..08b85215c2be 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -149,6 +149,7 @@ config MACVTAP
> config IPVLAN
> tristate "IP-VLAN support"
> depends on INET
> + depends on IPV6 || !IPV6
> depends on NETFILTER
> select NET_L3_MASTER_DEV
> ---help---
> --
> 2.9.0
>

Sorry for that, the fix look very reasonable to me.

Thanks,
--
Matteo Croce
per aspera ad upstream

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