On 16/02/2018 15:16, Thomas Gleixner wrote: > On Thu, 15 Feb 2018, Randy Dunlap wrote: > >> Hi, >> >> Is this a dead kconfig symbol? I don't see any Kconfig file that >> sets/enables it. >> >> ./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o >> ./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS >> ./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */ >> ./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS
This feature is not supposed to be selected by the user but by a subsystem depending on it. This subsystems is not yet ready, this is why the option is not selectable for now. The algorithm using these timings appears to be too heavy for the kernel, it needs some rework. -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog
