linux-kernel - Re: [PATCH] iio/light/opt3001: Use common error handling code in opt3001_get

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Message-ID: <20171026145012.vnev4ivbxdk3ak5e@piout.net>
Date:   Thu, 26 Oct 2017 16:50:12 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     SF Markus Elfring <elfring@...rs.sourceforge.net>,
        linux-iio@...r.kernel.org, Andreas Dannenberg <dannenberg@...com>,
        Felipe Balbi <balbi@...com>, Hartmut Knaack <knaack.h@....de>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] iio/light/opt3001: Use common error handling code in
 opt3001_get_lux()

On 26/10/2017 at 17:07:43 +0300, Dan Carpenter wrote:
> On Thu, Oct 26, 2017 at 03:48:52PM +0200, Alexandre Belloni wrote:
> > On 26/10/2017 at 14:17:30 +0200, SF Markus Elfring wrote:
> > > From: Markus Elfring <elfring@...rs.sourceforge.net>
> > > Date: Thu, 26 Oct 2017 14:06:49 +0200
> > > 
> > > * Add jump targets so that two error messages are stored only once
> > >   at the end of this function implementation.
> > > 
> > > * Adjust condition checks.
> > > 
> > > * Replace string literals by references to two global constant variables
> > >   in eight functions.
> > > 
> > > This issue was detected by using the Coccinelle software.
> > > 
> > > Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> > > ---
> > >  drivers/iio/light/opt3001.c | 88 +++++++++++++++++++--------------------------
> > >  1 file changed, 36 insertions(+), 52 deletions(-)
> > > 
> > > diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
> > > index 54d88b60e303..23d7d4e6ae61 100644
> > > --- a/drivers/iio/light/opt3001.c
> > > +++ b/drivers/iio/light/opt3001.c
> > > @@ -77,6 +77,9 @@
> > >  #define OPT3001_RESULT_READY_SHORT	150
> > >  #define OPT3001_RESULT_READY_LONG	1000
> > >  
> > > +static char const read_failure[] = "failed to read register %02x\n";
> > > +static char const write_failure[] = "failed to write register %02x\n";
> > > +
> > 
> > If you are going to do that
> 
> The answer to that question is we're not going to do that...  Please
> stop taking bad ideas and making them even more complicated and worse.
> 

I just wanted to know how far he was able to push his reasoning. And
hopefully waste a bit of his time.

I don't expect anyone to take patches from Markus seriously.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com