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From: Mark Brown <broonie@kernel.org>
To: Douglas Anderson <dianders@chromium.org>
Cc: David Collins <collinsd@codeaurora.org>,
	evgreen@chromium.org, swboyd@chromium.org,
	Javier Martinez Canillas <javier@dowhile0.org>,
	linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	Tony Lindgren <tony@atomide.com>,
	linux-omap@vger.kernel.org
Subject: Re: [PATCH] regulator: Fix return type of of_map_mode()
Date: Tue, 17 Apr 2018 18:22:29 +0100	[thread overview]
Message-ID: <20180417172229.GK8973@sirena.org.uk> (raw)
In-Reply-To: <20180417171204.259146-1-dianders@chromium.org>

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On Tue, Apr 17, 2018 at 10:12:04AM -0700, Douglas Anderson wrote:
> In of_get_regulation_constraints() it can clearly be seen that the
> return value of of_map_mode() is assigned to a signed integer.  This
> is important because the first thing the regulator core does with this
> value is to compare it to -EINVAL.
> 
> Let's fix the return type of all of the current of_map_mode()
> functions.  While we're at it, we'll remove one pointless "inline".

Ah, I see...  the thing here is that the mode is always an unsigned int
since it's a bitmask - this goes out beying the use in of_map_mode() and
into all the other APIs.  We only actually use 4 bits currently so I
think there's no problem switching to int but it seems we should
probably do that consistently throughout the API so that things don't
get missed later on.

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  parent reply	other threads:[~2018-04-17 17:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-17 17:12 Douglas Anderson
2018-04-17 17:13 ` Mark Brown
2018-04-17 17:22 ` Mark Brown [this message]
2018-04-17 17:48   ` Javier Martinez Canillas
2018-04-18  3:35     ` Doug Anderson

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