[PATCH v2 2/2] powerpc/powernv : Disable subcore for UP configs

From: Shreyas B. Prabhu
Date: Fri Jun 06 2014 - 06:23:28 EST

Build throws following errors when CONFIG_SMP=n
arch/powerpc/platforms/powernv/subcore.c: In function âcpu_update_split_modeâ:
arch/powerpc/platforms/powernv/subcore.c:274:15: error: âsetup_max_cpusâ undeclared (first use in this function)
arch/powerpc/platforms/powernv/subcore.c:285:5: error: lvalue required as left operand of assignment

'setup_max_cpus' variable is relevant only on SMP, so there is no point
working around it for UP. Furthermore, subcore itself is relevant only
on SMP and hence the better solution is to exclude subcore.o and
subcore-asm.o for UP builds.

Signed-off-by: Shreyas B. Prabhu <shreyas@xxxxxxxxxxxxxxxxxx>
Changes in v2:
Excluding subcore-asm.o which is part of the subcore feature for UP configs.

arch/powerpc/platforms/powernv/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 4ad0d34..d55891f 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,9 +1,9 @@
obj-y += setup.o opal-takeover.o opal-wrappers.o opal.o opal-async.o
obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
-obj-y += opal-msglog.o subcore.o subcore-asm.o
+obj-y += opal-msglog.o

-obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_SMP) += smp.o subcore.o subcore-asm.o
obj-$(CONFIG_PCI) += pci.o pci-p5ioc2.o pci-ioda.o
obj-$(CONFIG_EEH) += eeh-ioda.o eeh-powernv.o
obj-$(CONFIG_PPC_SCOM) += opal-xscom.o

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