dsa: Allow core and drivers to be built as modules
Change the kconfig types to tristate and adjust the condition for
declaring net_device::dsa_ptr to allow for this.
Adjust the makefile so that if NET_DSA_MV88E6123_61_65=y and
NET_DSA_MV88E6131=m or vice versa then both drivers are built-in. We
could leave these options as bool and make NET_DSA_MV88E6XXX a
user-selected option, but that would break existing configurations.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 63721a6..87f7353 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1079,7 +1079,7 @@
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
struct vlan_group __rcu *vlgrp; /* VLAN group */
#endif
-#ifdef CONFIG_NET_DSA
+#if IS_ENABLED(CONFIG_NET_DSA)
struct dsa_switch_tree *dsa_ptr; /* dsa specific data */
#endif
void *atalk_ptr; /* AppleTalk link */