Re: [PATCH 2/4] mfd: intel-lpss: Utilize i2c-designware.h

[Lee Jones <lee@kernel.org>]

On Tue, 23 Apr 2024, Florian Fainelli wrote:

> 
> 
> On 4/23/2024 5:00 PM, Andy Shevchenko wrote:
> > Tue, Apr 23, 2024 at 04:36:20PM -0700, Florian Fainelli kirjoitti:
> > > Rather than open code the i2c_designware string, utilize the newly
> > > defined constant in i2c-designware.h.
> > 
> > ...
> > 
> > >   static const struct mfd_cell intel_lpss_i2c_cell = {
> > > -	.name = "i2c_designware",
> > > +	.name = I2C_DESIGNWARE_NAME,
> > >   	.num_resources = ARRAY_SIZE(intel_lpss_dev_resources),
> > >   	.resources = intel_lpss_dev_resources,
> > >   };
> > 
> > We have tons of drivers that are using explicit naming, why is this case
> > special?
> > 
> 
> It is not special, just one of the 3 cases outside of drivers/i2c/busses
> that reference a driver living under drivers/i2c/busses, as I replied in the
> cover letter, this is a contract between the various device drivers and
> their users, so we should have a central place where it is defined, not
> repeated.

I have always held the opinion that replacing user-facing strings with
defines harms debugability, since grepping becomes a multi-stage
process, often with ambiguous results (in the case of multiple
definitions with the same name.  Please keep the string in-place.

-- 
Lee Jones [李琼斯]