From: DEEPAK VARMA <mh12gx2825@gmail.com>
To: "Ardelean, Alexandru" <alexandru.Ardelean@analog.com>
Cc: "julia.lawall@inria.fr" <julia.lawall@inria.fr>,
"kieran.bingham@ideasonboard.com"
<kieran.bingham@ideasonboard.com>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
"jic23@kernel.org" <jic23@kernel.org>,
"Hennerich, Michael" <Michael.Hennerich@analog.com>,
"lars@metafoo.de" <lars@metafoo.de>,
"knaack.h@gmx.de" <knaack.h@gmx.de>,
"daniel.baluta@gmail.com" <daniel.baluta@gmail.com>,
"pmeerw@pmeerw.net" <pmeerw@pmeerw.net>,
"outreachy-kernel@googlegroups.com"
<outreachy-kernel@googlegroups.com>
Subject: Re: [Outreachy kernel] Re: [PATCH 2/2] staging: iio: adc: ad7280a: Add spaces around operators
Date: Sat, 21 Mar 2020 15:55:23 +0530 [thread overview]
Message-ID: <20200321102522.GA3019@deeUbuntu> (raw)
In-Reply-To: <20200319161608.GA14738@deeUbuntu>
On Thu, Mar 19, 2020 at 09:46:10PM +0530, DEEPAK VARMA wrote:
> On Thu, Mar 19, 2020 at 07:07:20AM +0000, Ardelean, Alexandru wrote:
> > On Thu, 2020-03-19 at 08:03 +0100, Julia Lawall wrote:
> > > [External]
> > >
> > >
> > >
> > > On Thu, 19 Mar 2020, Ardelean, Alexandru wrote:
> > >
> > > > On Wed, 2020-03-18 at 22:30 +0530, DEEPAK VARMA wrote:
> > > > > [External]
> > > > >
> > > > > On Wed, Mar 18, 2020 at 05:28:17PM +0100, Julia Lawall wrote:
> > > > > > On Wed, 18 Mar 2020, DEEPAK VARMA wrote:
> > > > > >
> > > > > > > On Wed, Mar 18, 2020 at 04:19:24PM +0100, Greg KH wrote:
> > > > > > > > On Wed, Mar 18, 2020 at 04:12:28PM +0100, Lars-Peter Clausen wrote:
> > > > > > > > > On 3/18/20 7:00 AM, Greg KH wrote:
> > > > > > > > > > On Wed, Mar 18, 2020 at 09:58:13AM +0530, Deepak R Varma wrote:
> > > > > > > > > > > Add spaces around operator symbols to improve readability.
> > > > > > > > > > > Warning
> > > > > > > > > > > flagged by checkpatch script.
> > > > > > > > > > >
> > > > > > > > > > > Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
> > > > > > > > > > > ---
> > > > > > > > > > > drivers/staging/iio/adc/ad7280a.c | 4 ++--
> > > > > > > > > > > 1 file changed, 2 insertions(+), 2 deletions(-)
> > > > > > > > > > >
> > > > > > > > > > > diff --git a/drivers/staging/iio/adc/ad7280a.c
> > > > > > > > > > > b/drivers/staging/iio/adc/ad7280a.c
> > > > > > > > > > > index 19a5f244dcae..34ca0d09db85 100644
> > > > > > > > > > > --- a/drivers/staging/iio/adc/ad7280a.c
> > > > > > > > > > > +++ b/drivers/staging/iio/adc/ad7280a.c
> > > > > > > > > > > @@ -825,14 +825,14 @@ static irqreturn_t
> > > > > > > > > > > ad7280_event_handler(int
> > > > > > > > > > > irq, void *private)
> > > > > > > > > > > }
> > > > > > > > > > > static IIO_DEVICE_ATTR_NAMED(in_thresh_low_value,
> > > > > > > > > > > - in_voltage-
> > > > > > > > > > > voltage_thresh_low_value,
> > > > > > > > > > > + in_voltage -
> > > > > > > > > > > voltage_thresh_low_value,
> > > > > > > > > > > 0644,
> > > > > > > > > > > ad7280_read_channel_config,
> > > > > > > > > > > ad7280_write_channel_config,
> > > > > > > > > > > AD7280A_CELL_UNDERVOLTAGE);
> > > > > > > > > > > static IIO_DEVICE_ATTR_NAMED(in_thresh_high_value,
> > > > > > > > > > > - in_voltage-
> > > > > > > > > > > voltage_thresh_high_value,
> > > > > > > > > > > + in_voltage -
> > > > > > > > > > > voltage_thresh_high_value,
> > > > > > > > > > > 0644,
> > > > > > > > > > > ad7280_read_channel_config,
> > > > > > > > > > > ad7280_write_channel_config,
> > > > > > > > > >
> > > > > > > > > > Did you try building this code?
> > > > > > > > > >
> > > > > > > > > > It catches everyone...
> > > > > > > > >
> > > > > > > > > The problem is it builds. The token is stringyfied and
> > > > > > > > > "in_voltage - voltage_thresh_high_value" is a valid string.
> > > > > > > >
> > > > > > > > Ah, I thought it used to break the build when it happened. Oh well,
> > > > > > > > it's still a great "trick" to see if people understand C or not :)
> > > > > > > >
> > > > > > > Yes, it did build. I am sorry but I am not following you fully. Can
> > > > > > > you
> > > > > > > please let me know if the change I introduced is not good. You may
> > > > > > > please direct me to a document where I can read more about it.
> > > > > >
> > > > > > The code involves a macro, as indicated by the capital letters. You
> > > > > > will
> > > > > > see the issue when you look at the definition of the macro.
> > > > > >
> > > > > > julia
> > > > >
> > > > > Thank you Julia and all. I got my mistake. I will revert the change.
> > > > > Sorry for the trouble.
> > > >
> > > > I'll try to make some time to address this somehow, so that checkpatch
> > > > doesn't
> > > > bump into this.
> > > >
> > > > In the last 2-3 years, I think I saw 3-4 patches trying to address this [for
> > > > various Analog drivers].
> > > > So, don't feel too bad.
> > >
> > > Maybe a comment?
> >
> > Comment works for now.
> > Anybody wants to do a patch for that?
> > If nobody sends a patch for this in 1-2 weeks, I'll send one.
> >
> > Particularly, this would help with review, since people that are unfamiliar with
> > IIO-specific macros would also find it easier at review.
> >
> > The good part, is that it's only needed for AD7280A.
> > AD7192 has been re-worked, and is no longer on checkpatch's radar.
> > I'm reworking AD7793 now.
> >
>
> I will be happy to add a comment around the code area to indicate
> ignore checkpatch warning for the mentioned argument. Please confirm if
> that is what you are expecting to be done.
>
Hello Alexandru,
could you please confirm if I should add a comment around the code in
ad7280a.c to avoid further changes being made to the string argument?
> Thanks,
> Deepak.
>
> >
> > >
> > > julia
> > >
> > > >
> > > > > Deepak.
> > > > > > > Thanks,
> > > > > > > Deepak.
> > > > > > > > thanks,
> > > > > > > >
> > > > > > > > greg k-h
> > > > > > >
> > > > > > > --
> > > > > > > You received this message because you are subscribed to the Google
> > > > > > > Groups
> > > > > > > "outreachy-kernel" group.
> > > > > > > To unsubscribe from this group and stop receiving emails from it, send
> > > > > > > an
> > > > > > > email to outreachy-kernel+unsubscribe@googlegroups.com.
> > > > > > > To view this discussion on the web visit
> > > > > > > https://groups.google.com/d/msgid/outreachy-kernel/20200318162353.GA23226%40deeUbuntu
> > > > > > > .
> > > > > > >
next prev parent reply other threads:[~2020-03-21 10:25 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-18 4:26 [PATCH 0/2] staging: iio: adc: General code reformatting / cleanup patchset Deepak R Varma
2020-03-18 4:26 ` [PATCH 1/2] staging: iio: adc: ad7192: Reformat lines crossing 80 columns Deepak R Varma
2020-03-18 6:00 ` Greg KH
2020-03-18 15:12 ` DEEPAK VARMA
2020-03-18 15:18 ` Greg KH
2020-03-18 8:31 ` [Outreachy kernel] " Stefano Brivio
2020-03-18 16:06 ` DEEPAK VARMA
2020-03-18 16:22 ` Rohit Sarkar
2020-03-18 16:43 ` DEEPAK VARMA
2020-03-18 16:44 ` Lars-Peter Clausen
2020-03-18 17:31 ` DEEPAK VARMA
2020-03-19 7:04 ` Ardelean, Alexandru
2020-03-18 4:28 ` [PATCH 2/2] staging: iio: adc: ad7280a: Add spaces around operators Deepak R Varma
2020-03-18 6:00 ` Greg KH
2020-03-18 15:09 ` DEEPAK VARMA
2020-03-18 15:12 ` Lars-Peter Clausen
2020-03-18 15:19 ` Greg KH
2020-03-18 16:23 ` DEEPAK VARMA
2020-03-18 16:27 ` Greg KH
2020-03-18 16:28 ` [Outreachy kernel] " Julia Lawall
2020-03-18 17:00 ` DEEPAK VARMA
2020-03-19 7:00 ` Ardelean, Alexandru
2020-03-19 7:03 ` Julia Lawall
2020-03-19 7:07 ` Ardelean, Alexandru
2020-03-19 16:16 ` DEEPAK VARMA
2020-03-20 7:13 ` Ardelean, Alexandru
2020-03-21 10:25 ` DEEPAK VARMA [this message]
2020-03-22 9:06 ` Ardelean, Alexandru
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