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    SubjectRe: [PATCH 04/13] x86: Use HAVE_MEMBLOCK_NODE_MAP
    On 07/12/2011 02:15 AM, Tejun Heo wrote:
    > Convert x86 to HAVE_MEMBLOCK_NODE_MAP. The only difference in memory
    > handling is that allocations can't no longer cross node boundaries
    > whether they're node affine or not, which shouldn't matter at all.
    >
    > This conversion will enable further simplification of boot memory
    > handling.
    >
    > Signed-off-by: Tejun Heo <tj@kernel.org>
    > Cc: Yinghai Lu <yinghai@kernel.org>
    > Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    > Cc: Thomas Gleixner <tglx@linutronix.de>
    > Cc: Ingo Molnar <mingo@redhat.com>
    > Cc: "H. Peter Anvin" <hpa@zytor.com>

    Hi Tejun,

    This patch causes a build error on i386 allnoconfig:

    /home/hpa/kernel/linux-2.6-tip.memblock/arch/x86/mm/init_32.c: In
    function ‘initmem_init’:
    /home/hpa/kernel/linux-2.6-tip.memblock/arch/x86/mm/init_32.c:653:2:
    error: implicit declaration of function
    ‘memblock_x86_register_active_regions’
    [-Werror=implicit-function-declaration]
    cc1: some warnings being treated as errors

    -hpa
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