28.06.2019 14:00, Dmitry Osipenko пишет:
> 28.06.2019 13:32, Arnd Bergmann пишет:
>> Compile-testing the new driver on platforms without CONFIG_COMMON_CLK
>> leads to a link error:
>>
>> drivers/devfreq/tegra20-devfreq.o: In function `tegra_devfreq_target':
>> tegra20-devfreq.c:(.text+0x288): undefined reference to `clk_set_min_rate'
>>
>> Add a dependency on COMMON_CLK to avoid this.
>>
>> Fixes: 1d39ee8dad6d ("PM / devfreq: Introduce driver for NVIDIA Tegra20")
>> Signed-off-by: Arnd Bergmann <a...@arndb.de>
>> ---
>> drivers/devfreq/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
>> index f3b242987fd9..defe1d438710 100644
>> --- a/drivers/devfreq/Kconfig
>> +++ b/drivers/devfreq/Kconfig
>> @@ -107,6 +107,7 @@ config ARM_TEGRA_DEVFREQ
>> config ARM_TEGRA20_DEVFREQ
>> tristate "NVIDIA Tegra20 DEVFREQ Driver"
>> depends on (TEGRA_MC && TEGRA20_EMC) || COMPILE_TEST
>> + depends on COMMON_CLK
>> select DEVFREQ_GOV_SIMPLE_ONDEMAND
>> select PM_OPP
>> help
>>
>
> How is it possible to happen? There is a stub for clk_set_min_rate() when
> COMMON_CLK
> is disabled .. Could you please show the kernel's config that causes the
> problem?
>
> Moreover that was me who added the missing stub for clk_set_min_rate() in [1]
> to fix [2].
>
> [1]
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/include/linux/clk.h?id=b88c9f4129dcec941e5a26508e991c08051ed1ac
>
> [2] https://lists.01.org/pipermail/kbuild-all/2019-April/060292.html
>
> So this patch looks wrong to me because apparently it fixes a non-existent
> problem.
>
Oh, wait. That was "implicit declaration" and this one is "undefined reference"!
Still looks like something else need to be fixed..
