mpls: Refactor how the mpls module is built

This refactoring is needed to allow more than just mpls gso
support to be built into the mpls moddule.

Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/Makefile b/net/Makefile
index 38704bd..3995613 100644 (file)
--- a/net/Makefile
+++ b/net/Makefile
@@ -69,7 +69,7 @@ obj-$(CONFIG_BATMAN_ADV)      += batman-adv/
 obj-$(CONFIG_NFC)              += nfc/
 obj-$(CONFIG_OPENVSWITCH)      += openvswitch/
 obj-$(CONFIG_VSOCKETS) += vmw_vsock/
-obj-$(CONFIG_NET_MPLS_GSO)     += mpls/
+obj-$(CONFIG_MPLS)             += mpls/
 obj-$(CONFIG_HSR)              += hsr/
 ifneq ($(CONFIG_NET_SWITCHDEV),)
 obj-y                          += switchdev/

diff --git a/net/mpls/Kconfig b/net/mpls/Kconfig
index 37421db..a77fbcd 100644 (file)
--- a/net/mpls/Kconfig
+++ b/net/mpls/Kconfig
@@ -1,9 +1,25 @@
 #
 # MPLS configuration
 #
+
+menuconfig MPLS
+       tristate "MultiProtocol Label Switching"
+       default n
+       ---help---
+         MultiProtocol Label Switching routes packets through logical
+         circuits.  Originally conceved as a way of routing packets at
+         hardware speeds (before hardware was capable of routing ipv4 packets),
+         MPLS remains as simple way of making tunnels.
+
+         If you have not heard of MPLS you probably want to say N here.
+
+if MPLS
+
 config NET_MPLS_GSO
-       tristate "MPLS: GSO support"
+       bool "MPLS: GSO support"
        help
         This is helper module to allow segmentation of non-MPLS GSO packets
         that have had MPLS stack entries pushed onto them and thus
         become MPLS GSO packets.
+
+endif # MPLS