ARCH_ENABLE_MEMORY_HOTPLUG is enabled by default for powerpc. This causes build failures when SPARSEMEM=n as memory hotplug needs definition which are defined only when SPARSEMEM=y. The error is as follows:
arch/powerpc/platforms/pseries/hotplug-memory.c:27:31: error: 'SECTION_SIZE_BITS' undeclared (first use in this function) arch/powerpc/platforms/pseries/hotplug-memory.c:27:31: note: each undeclared identifier is reported only once for each function it appears in arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock': arch/powerpc/platforms/pseries/hotplug-memory.c:98:34: error: 'SECTION_SIZE_BITS' undeclared (first use in this function) make[2]: *** [arch/powerpc/platforms/pseries/hotplug-memory.o] Error 1 Signed-off-by: Pranith Kumar <[email protected]> CC: Andew Morton <[email protected]> --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9c1aa77..da16ffe 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -383,6 +383,7 @@ config ARCH_CPU_PROBE_RELEASE config ARCH_ENABLE_MEMORY_HOTPLUG def_bool y + depends on SPARSEMEM config ARCH_HAS_WALK_MEMORY def_bool y -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
