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    Subject[PATCH] cpu: fix section mismatch related to cpu_chain
    Date
    Fix following warnings:
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36de9): Section mismatch in reference from the function take_cpu_down() to the variable .cpuinit.data:cpu_chain
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36e86): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36ea9): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36f40): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36f8f): Section mismatch in reference from the function _cpu_down() to the variable .cpuinit.data:cpu_chain
    WARNING: o-x86_64/kernel/built-in.o(.text+0x370aa): Section mismatch in reference from the function unregister_cpu_notifier() to the variable .cpuinit.data:cpu_chain

    cpu_chain is used by unregister_cpu_notifier() that is used
    by the kvm module. So we can call the unregister_cpu_notifier() long
    after init completed.
    Drop the __cpuinitdata annotation to avoid freeing cpu_chain.

    Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
    Cc: Gautham R Shenoy <ego@in.ibm.com>
    ---
    kernel/cpu.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/kernel/cpu.c b/kernel/cpu.c
    index 2eff3f6..df9430f 100644
    --- a/kernel/cpu.c
    +++ b/kernel/cpu.c
    @@ -18,7 +18,7 @@
    /* Serializes the updates to cpu_online_map, cpu_present_map */
    static DEFINE_MUTEX(cpu_add_remove_lock);

    -static __cpuinitdata RAW_NOTIFIER_HEAD(cpu_chain);
    +static RAW_NOTIFIER_HEAD(cpu_chain);

    /* If set, cpu_up and cpu_down will return -EBUSY and do nothing.
    * Should always be manipulated under cpu_add_remove_lock
    --
    1.5.4.rc3.14.g44397


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