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    Subject[PATCH] cpu: fix section mismatch warnings for enable_nonboot_cpus
    Fix following warning:
    WARNING: o-x86_64/kernel/built-in.o(.text+0x36d8b): Section mismatch in reference from the function enable_nonboot_cpus() to the function .cpuinit.text:_cpu_up()

    enable_nonboot_cpus() are used solely from CONFIG_CONFIG_PM_SLEEP_SMP=y
    and PM_SLEEP_SMP imply HOTPLUG_CPU therefore the reference
    to _cpu_up() is valid.
    Annotate enable_nonboot_cpus() with __ref to silence modpost.

    Signed-off-by: Sam Ravnborg <>
    Cc: Gautham R Shenoy <>
    kernel/cpu.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/kernel/cpu.c b/kernel/cpu.c
    index e0d3a4f..2eff3f6 100644
    --- a/kernel/cpu.c
    +++ b/kernel/cpu.c
    @@ -389,7 +389,7 @@ int disable_nonboot_cpus(void)
    return error;

    -void enable_nonboot_cpus(void)
    +void __ref enable_nonboot_cpus(void)
    int cpu, error;


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