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SubjectRe: [Outreachy kernel] [PATCH v2] staging: media: atomisp: pci: Change line break to avoid an open parenthesis at the end of the line
Hi Dan,

On Fri, Apr 16, 2021 at 08:49:41AM +0300, Dan Carpenter wrote:
> On Fri, Apr 16, 2021 at 12:21:58AM +0300, Sakari Ailus wrote:
> > On Thu, Apr 15, 2021 at 08:59:41PM +0100, Matthew Wilcox wrote:
> > > On Thu, Apr 15, 2021 at 08:57:04PM +0100, Matthew Wilcox wrote:
> > > > On Thu, Apr 15, 2021 at 10:49:55PM +0300, Sakari Ailus wrote:
> > > > > On Thu, Apr 15, 2021 at 06:14:09PM +0100, Matthew Wilcox wrote:
> > > > > > On Thu, Apr 15, 2021 at 02:08:19PM -0300, Aline Santana Cordeiro wrote:
> > > > > > > -const struct atomisp_format_bridge *get_atomisp_format_bridge_from_mbus(
> > > > > > > - u32 mbus_code);
> > > > > > > +const struct atomisp_format_bridge*
> > > > > > > +get_atomisp_format_bridge_from_mbus(u32 mbus_code);
> > > > > >
> > > > > > No, this does not match coding style. Probably best to break the
> > > > > > 80-column guideline in this instance. Best would be to have a function
> > > > >
> > > > > Having the return type on the previous line is perfectly fine. There should
> > > > > be a space before the asterisk though.
> > > >
> > > > No, it's not. Linus has ranted about that before.
> > >
> > > Found it. https://lore.kernel.org/lkml/1054519757.161606@palladium.transmeta.com/
> >
> > Two decades ago, really?
> >
> > This is simply one of the practical means how you split long function
> > declarations and avoid overly long lines. Not my favourite though, but
> > still better than those long lines.
>
> I've always thought we allow either style, but it has to be done
> consistently within the file. I was pretty sure that was policy but
> it's another thing that goes back decades so I don't have a reference.
> It shouldn't be about breaking up long lines.
>
> >
> > My personal preference would be to wrap at the opening parenthesis and
> > indent by just a tab, but I know many people who disagree with that...
>
> If you're running into the 80 character limit, then it's fine to use
> two tabs. I think we have been rejecting patches that push align the
> parameters but push past the 80 character limit. Using one tab is
> confusing because it makes the decalarations line up with the code.

Interesting. Do you have an example of this? I've thought checkpatch.pl
gave a warning if the line ended with an opening parenthesis no matter
what.

--
Kind regards,

Sakari Ailus

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