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    SubjectBuild error with !CONFIG_SMP in v4.2-rc1 on arm multi_v7_defconfig
    Hello,
    I am seeing the following error when building v4.2-rc1 for arm with
    multi_v7_defconfig with CONFIG_SMP=n:

    LINK vmlinux
    LD vmlinux.o
    MODPOST vmlinux.o
    GEN .version
    CHK include/generated/compile.h
    UPD include/generated/compile.h
    CC init/version.o
    LD init/built-in.o
    drivers/built-in.o: In function `qcom_pm_collapse':
    :(.text+0xaf44c): undefined reference to `qcom_scm_cpu_power_down'
    drivers/built-in.o: In function `qcom_cpuidle_init':
    :(.init.text+0x9508): undefined reference to `qcom_scm_set_warm_boot_addr'
    make: *** [vmlinux] Error 1


    It appears the calling functions in drivers/soc/qcom/spm.c get included by
    CONFIG_QCOM_PM which is part of multi_v7_defconfig but the missing functions
    from drivers/firmware/qcom_scm.c only get included by CONFIG_QCOM_SCM if SMP is
    selected. I am not sure if the correct approach is to remove CONFIG_QCOM_PM from
    multi_v7_defconfig or to remove 'if SMP' from CONFIG_QCOM_SCM, or something else
    entirely. Thoughts?

    Regards,
    Dave


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