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    SubjectRe: [patch] x86, NMI: add to_cpumask() to silence compile warning
    On Wed, Dec 07, 2011 at 02:06:12PM +0300, Dan Carpenter wrote:
    > Gcc complains if we don't cast this to a struct cpumask pointer.
    > arch/x86/kernel/nmi_selftest.c:93:2:
    > warning: passing argument 1 of ‘cpumask_empty’ from
    > incompatible pointer type [enabled by default]

    Crap, another fallout found by Randy.


    From: Don Zickus <>
    Date: Wed, 7 Dec 2011 16:03:40 -0500
    Subject: [PATCH] x86, NMI: NMI selftest depends on the local apic

    The selftest doesn't work with out a local apic for now.

    Reported-by: Randy Dunlap <>
    Signed-off-by: Don Zickus <>
    arch/x86/Kconfig.debug | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
    index 020a4f1..d6eea6d 100644
    --- a/arch/x86/Kconfig.debug
    +++ b/arch/x86/Kconfig.debug
    @@ -286,7 +286,7 @@ config DEBUG_STRICT_USER_COPY_CHECKS

    bool "NMI Selftest"
    - depends on DEBUG_KERNEL
    + depends on DEBUG_KERNEL && X86_LOCAL_APIC
    Enabling this option turns on a quick NMI selftest to verify
    that the NMI behaves correctly.
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