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    Subject[PATCH] x86,APIC: Fix false positive section mismatch in numaq_32.c
     Impact: Fix false positive warning.

    The variable apic_numaq placed in noninit section references the
    function wakeup_secondary_cpu_via_nmi(), which is in __cpuinit
    section. Thus causes a section mismatch warning. To avoid such
    mismatch we mark apic_numaq as __refdata.

    We were warned by following warning:

    WARNING: arch/x86/kernel/built-in.o(.data+0x932c): Section mismatch in
    reference from the variable apic_numaq to the function
    The variable apic_numaq references
    the function __cpuinit wakeup_secondary_cpu_via_nmi()
    If the reference is valid then annotate the
    variable with __init* or __refdata (see linux/init.h) or name the variable:
    *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

    Signed-off-by: Rakib Mullick <>

    --- linus/arch/x86/kernel/apic/numaq_32.c 2009-07-12 11:27:30.000000000 +0600
    +++ rakib/arch/x86/kernel/apic/numaq_32.c 2009-07-12 11:28:21.000000000 +0600
    @@ -493,7 +493,8 @@ static void numaq_setup_portio_remap(voi
    (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);

    -struct apic apic_numaq = {
    +/* Use __refdata to keep false positive warning calm. */
    +struct apic __refdata apic_numaq = {

    .name = "NUMAQ",
    .probe = probe_numaq,

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      Last update: 2009-07-12 13:09    [W:0.019 / U:9.852 seconds]
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