From: Randy Dunlap <rdunlap@infradead.org>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>
Subject: Re: CONFIG_IRQ_TIMINGS?
Date: Fri, 16 Feb 2018 09:51:28 -0800 [thread overview]
Message-ID: <80739d7b-b035-05ca-9649-a26f0173eca1@infradead.org> (raw)
In-Reply-To: <fc5ade5c-dc68-a85e-6a1f-db8ece573fac@linaro.org>
On 02/16/2018 06:54 AM, Daniel Lezcano wrote:
> 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.
OK, thanks for the info.
--
~Randy
prev parent reply other threads:[~2018-02-16 17:51 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 ` CONFIG_IRQ_TIMINGS? Daniel Lezcano
2018-02-16 17:51 ` Randy Dunlap [this message]
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