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    Subject[PATCH] psci: add CPU_IDLE dependency
    Date
    I ran into a build error for the psci_checker:

    drivers/firmware/psci_checker.o: In function `psci_checker':
    psci_checker.c:(.init.text+0x528): undefined reference to `cpuidle_devices'

    As far as I can tell, this is simply a very rare combination of options,
    but the problem has existed since the code was initially added.
    Adding a Kconfig dependency makes it build properly.

    Fixes: ea8b1c4a6019 ("drivers: psci: PSCI checker module")
    Signed-off-by: Arnd Bergmann <arnd@arndb.de>
    ---
    drivers/firmware/Kconfig | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
    index 6e4ed5a9c6fd..1983e6e0106f 100644
    --- a/drivers/firmware/Kconfig
    +++ b/drivers/firmware/Kconfig
    @@ -10,7 +10,7 @@ config ARM_PSCI_FW

    config ARM_PSCI_CHECKER
    bool "ARM PSCI checker"
    - depends on ARM_PSCI_FW && HOTPLUG_CPU && !TORTURE_TEST
    + depends on ARM_PSCI_FW && HOTPLUG_CPU && CPU_IDLE && !TORTURE_TEST
    help
    Run the PSCI checker during startup. This checks that hotplug and
    suspend operations work correctly when using PSCI.
    --
    2.9.0
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