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[net-next] ipvlan: fix building with modular IPV6

Message ID 20180226094159.2519438-1-arnd@arndb.de
State New
Headers show
Series [net-next] ipvlan: fix building with modular IPV6 | expand

Commit Message

Arnd Bergmann Feb. 26, 2018, 9:41 a.m. UTC 
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(+)

-- 
2.9.0
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Patch

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---