[linux-next:master] BUILD REGRESSION d01f2f7e35573049673b71e18be7abfe3f80323f

[Andrew Morton]

On Fri, 26 Feb 2021 23:45:18 +0800 kernel test robot <lkp at intel.com> wrote:

> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: d01f2f7e35573049673b71e18be7abfe3f80323f  Add linux-next specific files for 20210226
> 
> ...
>
> page_alloc.c:(.text+0xe028): undefined reference to `node_reclaim_distance'
> riscv32-linux-ld: page_alloc.c:(.text+0xe02c): undefined reference to `node_reclaim_distance'
> 
> ...
>
> |-- riscv-randconfig-p001-20210226
> |   |-- page_alloc.c:(.text):undefined-reference-to-node_reclaim_distance
> |   `-- riscv32-linux-ld:page_alloc.c:(.text):undefined-reference-to-node_reclaim_distance

I assume the riscv randconfig managed to create a .config with
CONFIG_NUMA=n, CONFIG_SMP=y.  Configuration doesn't make a lot of
sense, unless someone has a single-CPU machine with cpuless nodes...

Could the riscv maintainers please test and merge this?

--- a/arch/riscv/Kconfig~a
+++ a/arch/riscv/Kconfig
@@ -314,6 +314,7 @@ endchoice
 # Common NUMA Features
 config NUMA
 	bool "NUMA Memory Allocation and Scheduler Support"
+	depends on SMP
 	select GENERIC_ARCH_NUMA
 	select OF_NUMA
 	select ARCH_SUPPORTS_NUMA_BALANCING
_