Re: [PATCH v2] mfd: syscon: Use a unique name with regmap_config

From: Andy Shevchenko
Date: Thu Jan 30 2020 - 15:43:38 EST


On Thu, Jan 30, 2020 at 7:09 PM Suman Anna <s-anna@xxxxxx> wrote:
> On 1/30/20 9:34 AM, Andy Shevchenko wrote:
> > On Tue, Jan 28, 2020 at 1:14 AM Suman Anna <s-anna@xxxxxx> wrote:

...

> >> - syscon_config.name = of_node_full_name(np);
> >> + syscon_config.name = kasprintf(GFP_KERNEL, "%pOFn@%llx", np,
> >> + (u64)res.start);
> >
> > Explicit castings in printf() usually tell us that something is not okay.
>
> Yes, I agree in general.
>
> > Yes, for resource_size_t we have %pa.
>
> And that was the first thing I tried when doing v2, before moving away
> from it. This is not for a console printf statement, but is rather for
> the regmap debugfs name. Using a %pa adds the 0x and leading zeros in
> the debugfs name, when compared to the name before this patch. The
> typecast retains the current format, and replaces the unit-address
> without the leading 0s either. Introducing a local-variable to avoid the
> typecast is overkill.

Thanks for the clarification.

--
With Best Regards,
Andy Shevchenko