diff -Nur linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig
--- linux-3.11.5.orig/arch/powerpc/platforms/pseries/Kconfig	2013-10-14 03:14:45.000000000 +0200
+++ linux-3.11.5/arch/powerpc/platforms/pseries/Kconfig	2013-11-01 15:23:09.000000000 +0100
@@ -17,6 +17,7 @@
 	select PPC_NATIVE
 	select PPC_PCI_CHOICE if EXPERT
 	select ZLIB_DEFLATE
+	select ZLIB_INFLATE
 	select PPC_DOORBELL
 	select HAVE_CONTEXT_TRACKING
 	select HOTPLUG_CPU if SMP