Make lguest compile with CONFIG_BLOCK=n and CONFIG_NET=n

Gabriel C reports lguest doesn't compile with CONFIG_BLOCK=n.  Fix this
by introducing a config var for the block device, which depends on
LGUEST && BLOCK.  Do the same for the net driver, rather then depending
gratuitously on CONFIG_NET.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 11 insertions, 3 deletions

diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index a7a099027fca..014e72121b5a 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -31,4 +31,4 @@ obj-$(CONFIG_BLK_DEV_SX8)	+= sx8.o
 obj-$(CONFIG_BLK_DEV_UB)        += ub.o
 
 obj-$(CONFIG_XEN_BLKDEV_FRONTEND)       += xen-blkfront.o
-obj-$(CONFIG_LGUEST_GUEST)      += lguest_blk.o
+obj-$(CONFIG_LGUEST_BLOCK)      += lguest_blk.o
diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig
index 43d901fdc77f..888205c3f76b 100644
--- a/drivers/lguest/Kconfig
+++ b/drivers/lguest/Kconfig
@@ -1,6 +1,6 @@
 config LGUEST
         tristate "Linux hypervisor example code"
-        depends on X86 && PARAVIRT && NET && EXPERIMENTAL && !X86_PAE
+        depends on X86 && PARAVIRT && EXPERIMENTAL && !X86_PAE
         select LGUEST_GUEST
         select HVC_DRIVER
         ---help---
@@ -18,3 +18,11 @@ config LGUEST_GUEST
           The guest needs code built-in, even if the host has lguest
           support as a module.  The drivers are tiny, so we build them
           in too.
+
+config LGUEST_NET
+        tristate
+        depends on LGUEST_GUEST && NET
+
+config LGUEST_BLOCK
+        tristate
+        depends on LGUEST_GUEST && BLOCK
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 94b78cc5fe86..e684212fd8e2 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -177,7 +177,7 @@ obj-$(CONFIG_ZORRO8390) += zorro8390.o
 obj-$(CONFIG_HPLANCE) += hplance.o 7990.o
 obj-$(CONFIG_MVME147_NET) += mvme147.o 7990.o
 obj-$(CONFIG_EQUALIZER) += eql.o
-obj-$(CONFIG_LGUEST_GUEST) += lguest_net.o
+obj-$(CONFIG_LGUEST_NET) += lguest_net.o
 obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o
 obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o
 obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o