Re: [PATCH v2 7/8] auxdisplay: Add Titanmec TM16xx 7-segment display controllers driver

From: Andy Shevchenko
Date: Mon Jun 30 2025 - 05:54:56 EST


On Mon, Jun 30, 2025 at 11:27:21AM +0200, Krzysztof Kozlowski wrote:
> On 30/06/2025 09:27, Andy Shevchenko wrote:
> > On Mon, Jun 30, 2025 at 08:12:16AM +0200, Krzysztof Kozlowski wrote:
> >> On 29/06/2025 15:18, Jean-François Lessard wrote:

...

> >>> + display->leds =
> >>> + devm_kcalloc(dev, display->num_leds, sizeof(*display->leds), GFP_KERNEL);
> >>
> >> Wrong wrapping. Use kernel style, not clang style.
> >>
> >>
> >>> + if (!display->leds)
> >>> + return -ENOMEM;
> >
> > Just wondering how .clang-format is official? Note some of the maintainers even
>
> First time I hear above clang style is preferred. Where is it expected?

Documented here:
https://www.kernel.org/doc/html/latest/process/coding-style.html#you-ve-made-a-mess-of-it

For example, discussed here
https://lore.kernel.org/lkml/CAPcyv4ij3s+9uO0f9aLHGj3=ACG7hAjZ0Rf=tyFmpt3+uQyymw@xxxxxxxxxxxxxx/
or here
https://lore.kernel.org/lkml/64dbeffcf243a_47b5729487@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.notmuch/
or
...

> I assume clang-format is half-working and should not be used blindly,
> but fixed to match actual kernel coding style.

That sounds like the case, at least in accordance with Miguel.

> > prefer (ugly in some cases in my opinion) style because it's generated by the
> > clang-format.

--
With Best Regards,
Andy Shevchenko