linux-kernel - Re: [PATCH v4] drm/i915/hwmon: expose fan speed

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Message-ID: <ZrYEQqs0IwDHWkGx@ashyti-mobl2.lan>
Date: Fri, 9 Aug 2024 12:57:54 +0100
From: Andi Shyti <andi.shyti@...ux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Raag Jadav <raag.jadav@...el.com>, jani.nikula@...ux.intel.com,
	joonas.lahtinen@...ux.intel.com, rodrigo.vivi@...el.com,
	tursulin@...ulin.net, airlied@...il.com, daniel@...ll.ch,
	linux@...ck-us.net, andi.shyti@...ux.intel.com,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
	anshuman.gupta@...el.com, badal.nilawar@...el.com,
	riana.tauro@...el.com, ashutosh.dixit@...el.com,
	karthik.poosa@...el.com
Subject: Re: [PATCH v4] drm/i915/hwmon: expose fan speed

On Fri, Aug 09, 2024 at 02:48:08PM +0300, Andy Shevchenko wrote:
> On Fri, Aug 09, 2024 at 11:45:25AM +0530, Raag Jadav wrote:
> > Add hwmon support for fan1_input attribute, which will expose fan speed
> > in RPM. With this in place we can monitor fan speed using lm-sensors tool.
> > 
> > $ sensors
> > i915-pci-0300
> > Adapter: PCI adapter
> > in0:         653.00 mV
> > fan1:        3833 RPM
> > power1:           N/A  (max =  43.00 W)
> > energy1:      32.02 kJ
> 
> > v2:
> > - Add mutex protection
> > - Handle overflow
> > - Add ABI documentation
> > - Aesthetic adjustments (Riana)
> > 
> > v3:
> > - Declare rotations as "long" and drop redundant casting
> > - Change date and version in ABI documentation
> > - Add commenter name in changelog (Riana)
> > 
> > v4:
> > - Fix wakeref leak
> > - Drop switch case and simplify hwm_fan_xx() (Andi)
> 
> I do not understand why we pollute Git history with changelogs, but it's
> probably the ugly atavism in DRM workflow.

I never liked it! Besides it should even be against the
submitting patches recommendation.

I don't understand what interest might have someone in a couple
of years, reading this commit, knowing an unintellegible list of
differences between v2 and v3.

I consider it a random pollution of the commit log.

Andi