linux-kernel - Re: [PATCH 2/2] regulator: core: Check for DT every time we check full constraints

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Date:	Wed, 27 Nov 2013 16:53:54 +0000
From:	Mark Brown <broonie@...nel.org>
To:	"Jon Medhurst (Tixy)" <tixy@...aro.org>
Cc:	Fabio Estevam <festevam@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>, thierry.reding@...il.com,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 2/2] regulator: core: Check for DT every time we check
 full constraints

On Wed, Nov 27, 2013 at 04:32:59PM +0000, Jon Medhurst (Tixy) wrote:

> Doesn't this now make this code in regulator_init_complete()
> redundant..?

> 	if (of_have_populated_dt())
> 		has_full_constraints = true;

Yes, it is a bit redundant now.

> Or is keeping this to avoid one less variable check a worthwhile
> optimisation?

I expect it can be removed, I just wanted to check that the function
wasn't horribly expensive for some silly reason before I actually went
and did that.

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