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

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On 5/2/24 00:17, Lee Jones wrote:
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.

I am not buying into that argument and the fact that Duangiang was able to trip over the lack of an explicit contract between drivers seems like a bigger obstacle than doing a multi-stage grep. Anyway, I have no skin in this game, I just don't like seeing repetition and not stating contracts between drivers more explicitly.
--
Florian

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