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Date: Fri, 16 Feb 2018 15:16:18 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Randy Dunlap <rdunlap@infradead.org>
cc: LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>
Subject: Re: CONFIG_IRQ_TIMINGS?
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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

The actual use case is stil being worked on. Took a bit longer than
expected, but Daniel might have a more accurate answer.

Thanks,

	tglx