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authorArnd Bergmann <arnd@arndb.de>2019-03-04 23:38:03 +0300
committerDavid S. Miller <davem@davemloft.net>2019-03-05 00:14:34 +0300
commita154d5d83d21af6b9ee32adc5dbcea5ac1fb534c (patch)
tree742a25ce5320613044083249ba3571eb0899f061 /net/ipv6/addrconf.c
parent64af7dc35f0fc8d3435327c44ef50359bdbe2c67 (diff)
downloadlinux-a154d5d83d21af6b9ee32adc5dbcea5ac1fb534c.tar.xz
net: ignore sysctl_devconf_inherit_init_net without SYSCTL
When CONFIG_SYSCTL is turned off, we get a link failure for the newly introduced tuning knob. net/ipv6/addrconf.o: In function `addrconf_init_net': addrconf.c:(.text+0x31dc): undefined reference to `sysctl_devconf_inherit_init_net' Add an IS_ENABLED() check to fall back to the default behavior (sysctl_devconf_inherit_init_net=0) here. Fixes: 856c395cfa63 ("net: introduce a knob to control whether to inherit devconf config") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Christian Brauner <christian@brauner.io> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index da5a21050ba9..4ae17a966ae3 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -6905,7 +6905,8 @@ static int __net_init addrconf_init_net(struct net *net)
if (!dflt)
goto err_alloc_dflt;
- if (sysctl_devconf_inherit_init_net == 1 && !net_eq(net, &init_net)) {
+ if (IS_ENABLED(CONFIG_SYSCTL) &&
+ sysctl_devconf_inherit_init_net == 1 && !net_eq(net, &init_net)) {
memcpy(all, init_net.ipv6.devconf_all, sizeof(ipv6_devconf));
memcpy(dflt, init_net.ipv6.devconf_dflt, sizeof(ipv6_devconf_dflt));
}