On Fri, Jul 27, 2018 at 10:32:19AM +0900, Masahiro Yamada wrote: > This will just add a new unmet dependency warning. > CONFIG_PREEMPT_COUNT will be still selected. True. I guess we simply need to prohibit CONFIG_DEBUG_ATOMIC_SLEEP explicitly if PREEMPT_COUNT isn't supported. E.g something like this: diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 26d3ff7e3cf4..373ce9fecd7e 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1195,6 +1195,7 @@ config DEBUG_ATOMIC_SLEEP bool "Sleep inside atomic section checking" select PREEMPT_COUNT depends on DEBUG_KERNEL + depends on !ARCH_NO_PREEMPT help If you say Y here, various routines which may sleep will become very noisy if they are called inside atomic sections: when a spinlock is -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
