linux-kernel - Re: [PATCH] ACPI: Remove trailing whitespace

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Message-ID: <57b77f3a36f56e2ae7ab8fe367865b5412d4e11f.camel@perches.com>
Date:   Wed, 04 Nov 2020 09:12:54 -0800
From:   Joe Perches <joe@...ches.com>
To:     Maximilian Luz <luzmaximilian@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>
Cc:     linux-acpi@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: Remove trailing whitespace

On Wed, 2020-11-04 at 16:48 +0100, Maximilian Luz wrote:
> On 11/4/20 6:13 AM, Joe Perches wrote:
> 
> [...]
> 
> > > Yes. I scanned drivers/acpi for trailing whitespaces after I noticed a
> > > couple of them. I did not explicitly scan for other stuff like spaces
> > > where there should be tabs, mostly because I haven't found a quick and
> > > reliable solution for that. I only noticed an inconsistent indentation
> > > when committing, so I fixed that too.
> > 
> > You could try:
> > 
> > $ git ls-files -- 'drivers/acpi/*.[ch]' | \
> >    xargs ./scripts/checkpatch.pl -f --fix-inplace --types=CODE_INDENT
> 
> Thanks, that indeed looks like a decent solution.
> 
> > Right now that produces:
> > ---
> 
> [...]
> 
> > diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
[]
> > @@ -89,7 +89,7 @@ struct acpi_ac {
> >   #define to_acpi_ac(x) power_supply_get_drvdata(x)
> >   
> > 
> >   /* --------------------------------------------------------------------------
> > -                               AC Adapter Management
> > +			       AC Adapter Management
> >      -------------------------------------------------------------------------- */
> 
> I'm not too sure about the comments, but I can find the time to look
> over the output and adjust that if that's something you'd want me to do.

Up to you.  I hardly looked at the output.

I'd generally prefer to use a single line comment like

/* AC Adapter Management */

but I don't know how often that dashed block is used in ACPI.

grep seems to show the texts are not correctly centered so it seems like
it was done by hand and not that some automation tool was used to create
those blocks.

Maybe a separate patch could be done to change those if desired.
But not by me.

As far as I know, acpi was once autogenerated from a common source tree
and whitespace changes were once frowned on, but maybe that's changed or
or perhaps that's only for files in drivers/acpi/acpica/.  I don't know.

https://acpica.org/downloads/linux

cheers, Joe