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From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Petr Mladek <pmladek@suse.com>, Kees Cook <keescook@chromium.org>,
	Matthew Wilcox <willy@infradead.org>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
	Sri Krishna chowdary <schowdary@nvidia.com>,
	"Uladzislau Rezki (Sony)" <urezki@gmail.com>,
	Changbin Du <changbin.du@intel.com>
Subject: Re: [PATCH V2 7/9] genirq/timings: Add selftest for circular array
Date: Fri, 24 May 2019 18:00:10 +0200	[thread overview]
Message-ID: <b9a62423-7f33-8725-3459-24cfb84043a3@linaro.org> (raw)
In-Reply-To: <20190524140045.GY9224@smile.fi.intel.com>

On 24/05/2019 16:00, Andy Shevchenko wrote:
> On Fri, May 24, 2019 at 01:16:13PM +0200, Daniel Lezcano wrote:
>> Due to the complexity of the code and the difficulty to debug it,
>> let's add some selftests to the framework in order to spot issues or
>> regression at boot time when the runtime testing is enabled for this
>> subsystem.
>>
>> This tests the circular buffer at the limits and validates:
>>  - the encoding / decoding of the values
>>  - the macro to browse the irq timings circular buffer
>>  - the function to push data in the circular buffer
> 
> Can it use kselftest infrastructure?

I don't think it is possible because it is 100% deep-internal test, no
cooperation with userspace.


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  reply	other threads:[~2019-05-24 16:00 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-24 11:16 [PATCH V2 0/9] genirq/timings: Fixes and selftests Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 1/9] genirq/timings: Fix next event index function Daniel Lezcano
2019-05-24 13:51   ` Andy Shevchenko
2019-05-24 11:16 ` [PATCH V2 2/9] genirq/timings: Fix timings buffer inspection Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 3/9] genirq/timings: Optimize the period detection speed Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 4/9] genirq/timings: Use the min kernel macro Daniel Lezcano
2019-05-24 13:57   ` Andy Shevchenko
2019-05-24 16:11     ` Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 5/9] genirq/timings: Encapsulate timings push Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 6/9] genirq/timings: Encapsulate storing function Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 7/9] genirq/timings: Add selftest for circular array Daniel Lezcano
2019-05-24 14:00   ` Andy Shevchenko
2019-05-24 16:00     ` Daniel Lezcano [this message]
2019-05-24 11:16 ` [PATCH V2 8/9] genirq/timings: Add selftest for irqs circular buffer Daniel Lezcano
2019-05-24 11:16 ` [PATCH V2 9/9] genirq/timings: Add selftest for next event computation Daniel Lezcano

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