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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 1/9] genirq/timings: Fix next event index function
Date: Fri, 24 May 2019 16:51:45 +0300	[thread overview]
Message-ID: <20190524135145.GW9224@smile.fi.intel.com> (raw)
In-Reply-To: <20190524111615.4891-2-daniel.lezcano@linaro.org>

On Fri, May 24, 2019 at 01:16:07PM +0200, Daniel Lezcano wrote:
> The current code was luckily working with most of the interval samples
> testing but actually it fails to correctly detect pattern repeatition
> breaking at the end of the buffer.
> 
> Narrowing down the bug has been a real pain because of the pointers,
> so the routine is rewrite by using indexes instead.

Minor spelling issues below.

> +	/*
> +	 * Move the beginnning pointer to the end minus the max period

Typo: beginning.

> +	 * x 3. We are at the point we can begin searching the pattern

"x 3." would be read better on the previous line.

> +	 */
> +	buffer = &buffer[len - (period_max * 3)];

> +	/*
> +	 * Adjust the length to the maximum allowed period x 3
> +	 */

One line?

> +	len = period_max * 3;

> -	for (i = period_max; i >= PREDICTION_PERIOD_MIN ; i--) {
> +	for (period = period_max; period >= PREDICTION_PERIOD_MIN ; period--) {

At the same time you may drop extra white space.

>  	}

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2019-05-24 13:51 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 [this message]
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
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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