linux-kernel - Re: [PATCH] mtd: pxa3xx_nand: cleanup wait_for

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Message-ID: <20150209150145.GA13655@opentech.at>
Date:	Mon, 9 Feb 2015 16:01:45 +0100
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	Nicholas Mc Guire <hofrat@...dl.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: pxa3xx_nand: cleanup wait_for_completion handling

On Mon, 09 Feb 2015, Ezequiel Garcia wrote:

> On 02/01/2015 01:55 PM, Nicholas Mc Guire wrote:
> > return type of wait_for_completion_timeout is unsigned long not int, this
> > patch uses the return value of wait_for_completion_timeout in the condition
> > directly rather than assigning it to an incorrect type variable.
> > 
> > The timeout declaration cleanup is just for readability
> > 
> > Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
> > ---
> > 
> > The variable used for handling the return of wait_for_cmpletion_timeout
> > was int but should be unsigned long, where it was not in use for anything
> > else and the return value in case of completion (>0) is not used it was
> > removed and wait_for_completion_timeout() used directly in the if condition.
> > 
> > To make the timeout values a bit simpler to read and also handle all of
> > the corner cases correctly the declarations are moved to msecs_to_jiffies().
> > 
> 
> Not sure why you decided to put this explanation outside of the commit log.
> It looks useful so I'd move it up.
>

simply because I was not sure about what should go into the log and what not
but this has been clarified by Dan Carpenter - should have it correct in 
future patches.
 
> > This patch was only compile tested for pxa3xx_defconfig 
> > (implies CONFIG_MTD_NAND_PXA3xx=y)
> > 
> 
> The change looks good, but I would like someone to test it on real hardware.

thx!
hofrat
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