From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Thomas Gleixner <tglx@linutronix.de>,
Randy Dunlap <rdunlap@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>
Subject: Re: CONFIG_IRQ_TIMINGS?
Date: Fri, 16 Feb 2018 15:54:17 +0100 [thread overview]
Message-ID: <fc5ade5c-dc68-a85e-6a1f-db8ece573fac@linaro.org> (raw)
In-Reply-To: <alpine.DEB.2.21.1802161515020.1294@nanos.tec.linutronix.de>
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.
--
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next prev parent reply other threads:[~2018-02-16 14:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-15 18:46 CONFIG_IRQ_TIMINGS? Randy Dunlap
2018-02-16 14:16 ` CONFIG_IRQ_TIMINGS? Thomas Gleixner
2018-02-16 14:54 ` Daniel Lezcano [this message]
2018-02-16 17:51 ` CONFIG_IRQ_TIMINGS? Randy Dunlap
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