Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] cpuidle: stub out cpuidle_poll_state_init() without CONFIG_CPU_IDLE | Date | Tue, 20 Feb 2018 16:18:01 +0100 |
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On Tuesday, February 20, 2018 4:05:44 PM CET Arnd Bergmann wrote: > Calling cpuidle_poll_state_init() from apm_init() results in a link > failure since that directory is never entered without CONFIG_CPU_IDLE: > > arch/x86/kernel/apm_32.o: In function `apm_init': > apm_32.c:(.init.text+0x62c): undefined reference to `cpuidle_poll_state_init' > > CONFIG_ARCH_HAS_CPU_RELAX can be set without CONFIG_CPU_IDLE but has no > effect then, so we should treat that configuration the same as > if CONFIG_ARCH_HAS_CPU_RELAX was not set at all. > > Fixes: 34c2f65b718d ("cpuidle: Move polling state initialization code to separate file") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > include/linux/cpuidle.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h > index 871f9e21810c..0b3fc229086c 100644 > --- a/include/linux/cpuidle.h > +++ b/include/linux/cpuidle.h > @@ -225,7 +225,7 @@ static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, > } > #endif > > -#ifdef CONFIG_ARCH_HAS_CPU_RELAX > +#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_ARCH_HAS_CPU_RELAX) > void cpuidle_poll_state_init(struct cpuidle_driver *drv); > #else > static inline void cpuidle_poll_state_init(struct cpuidle_driver *drv) {} >
https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=pm-4.16-rc2&id=d7212cfb05ba802bea4dd6c90d61cfe6366ea224
is in the Linus' tree already.
Thanks, Rafael
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