Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH] ipvlan: fix building without netfilter | Date | Thu, 22 Sep 2016 11:40:52 +0200 |
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The new l3s mode in ipvlan relies on netfilter interfaces, but the ipvlan driver can be configured when CONFIG_NETFILTER is disabled, leading to a build error:
drivers/net/ipvlan/ipvlan.h:132:22: error: 'struct nf_hook_state' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] drivers/net/ipvlan/ipvlan_main.c:14:27: error: array type has incomplete element type 'struct nf_hook_ops' ...
This adds a forward declaration for struct nf_hook_state, and hides the newly added l3s code in an #ifdef.
Fixes: 4fbae7d83c98 ("ipvlan: Introduce l3s mode") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/net/ipvlan/ipvlan.h | 1 + drivers/net/ipvlan/ipvlan_main.c | 8 ++++++++ 2 files changed, 9 insertions(+)
diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h index 7e0732f5ea07..e239b90e42e0 100644 --- a/drivers/net/ipvlan/ipvlan.h +++ b/drivers/net/ipvlan/ipvlan.h @@ -128,6 +128,7 @@ bool ipvlan_addr_busy(struct ipvl_port *port, void *iaddr, bool is_v6); void ipvlan_ht_addr_del(struct ipvl_addr *addr); struct sk_buff *ipvlan_l3_rcv(struct net_device *dev, struct sk_buff *skb, u16 proto); +struct nf_hook_state; unsigned int ipvlan_nf_input(void *priv, struct sk_buff *skb, const struct nf_hook_state *state); #endif /* __IPVLAN_H */ diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index f442eb366863..19e8b0b1b56f 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -9,6 +9,7 @@ #include "ipvlan.h" +#ifdef CONFIG_NETFILTER static u32 ipvl_nf_hook_refcnt = 0; static struct nf_hook_ops ipvl_nfops[] __read_mostly = { @@ -25,6 +26,7 @@ static struct nf_hook_ops ipvl_nfops[] __read_mostly = { .priority = INT_MAX, }, }; +#endif static struct l3mdev_ops ipvl_l3mdev_ops __read_mostly = { .l3mdev_l3_rcv = ipvlan_l3_rcv, @@ -37,6 +39,7 @@ static void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev) static int ipvlan_register_nf_hook(void) { +#ifdef CONFIG_NETFILTER int err = 0; if (!ipvl_nf_hook_refcnt) { @@ -48,15 +51,20 @@ static int ipvlan_register_nf_hook(void) } return err; +#else + return -EINVAL; +#endif } static void ipvlan_unregister_nf_hook(void) { +#ifdef CONFIG_NETFILTER WARN_ON(!ipvl_nf_hook_refcnt); ipvl_nf_hook_refcnt--; if (!ipvl_nf_hook_refcnt) _nf_unregister_hooks(ipvl_nfops, ARRAY_SIZE(ipvl_nfops)); +#endif } static int ipvlan_set_port_mode(struct ipvl_port *port, u16 nval) -- 2.9.0
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