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    Subject[Part2 PATCH v4 10/15] x86, numa: Move memory_add_physaddr_to_nid() to CONFIG_NUMA.
    Date
    memory_add_physaddr_to_nid() is declared in include/linux/memory_hotplug.h,
    protected by CONFIG_NUMA. And in x86, the definitions are protected by
    CONFIG_MEMORY_HOTPLUG.

    memory_add_physaddr_to_nid() uses numa_meminfo to find the physical address's
    nid. It has nothing to do with memory hotplug. And also, it can be used by
    alloc_low_pages() to obtain nid of the allocated memory.

    So in x86, also use CONFIG_NUMA to protect it.

    Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
    ---
    arch/x86/mm/numa.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
    index 1242190..2b5057f 100644
    --- a/arch/x86/mm/numa.c
    +++ b/arch/x86/mm/numa.c
    @@ -1009,7 +1009,7 @@ EXPORT_SYMBOL(cpumask_of_node);

    #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */

    -#ifdef CONFIG_MEMORY_HOTPLUG
    +#ifdef CONFIG_NUMA
    int memory_add_physaddr_to_nid(u64 start)
    {
    struct numa_meminfo *mi = &numa_meminfo;
    --
    1.7.1


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