From: Tobias Regnery <tobias.regnery@gmail.com>
Date: Thu, 26 Apr 2018 10:36:36 +0000 (+0200)
Subject: geneve: fix build with modular IPV6
X-Git-Tag: v5.15~8692^2~368
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=094be0927ff3e802b3f26b7f66c563a4b93a4ab5;p=platform%2Fkernel%2Flinux-starfive.git

geneve: fix build with modular IPV6

Commit c40e89fd358e ("geneve: configure MTU based on a lower device") added
an IS_ENABLED(CONFIG_IPV6) to geneve, leading to the following link error
with CONFIG_GENEVE=y and CONFIG_IPV6=m:

drivers/net/geneve.o: In function `geneve_link_config':
geneve.c:(.text+0x14c): undefined reference to `rt6_lookup'

Fix this by adding a Kconfig dependency and forcing GENEVE to be a module
when IPV6 is a module.

Fixes: c40e89fd358e ("geneve: configure MTU based on a lower device")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 8918466..a029b27 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -198,6 +198,7 @@ config VXLAN
 config GENEVE
        tristate "Generic Network Virtualization Encapsulation"
        depends on INET && NET_UDP_TUNNEL
+       depends on IPV6 || !IPV6
        select NET_IP_TUNNEL
        select GRO_CELLS
        ---help---