Re: [PATCH] gpio: remove const modifier from gpiod_get_direction()

From: Alexandre Courbot
Date: Tue Nov 25 2014 - 03:09:38 EST


On 11/25/2014 05:01 PM, Uwe Kleine-König wrote:
Hello Alexandre,

just some minor nitpicking on the commit log:

On Tue, Nov 25, 2014 at 04:20:45PM +0900, Alexandre Courbot wrote:
Although gpiod_get_direction() can be considered side-effect free for
consumers, its internals involve setting or clearing bits in the
affected GPIO descriptor, for which we need to force-cast the const
descriptor parameter. This could lead to incorrect behavior is the
s/ is/ if/, and I think s/parameter/variable to non-const/

compiler decide to optimize here, so remove this const parameter. The
s/decide/decides/; s/parameter/attribute/

intent is to make gpiod_get_direction() private anyway, so it does not
really matter.

Reported-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>

Thanks ; I should have proof-read myself...

Sending a v2 with a fixed log and your Ack so Linus can just pick the patch as-is.
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