linux-kernel - Re: [PATCH v3 20/20] arm: mach-pxa: Decrement the power supply's device reference counter

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Date:	Wed, 11 Feb 2015 23:12:33 +0100
From:	Pavel Machek <pavel@....cz>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>, Jiri Kosina <jkosina@...e.cz>,
	David Herrmann <dh.herrmann@...glemail.com>,
	Cezary Jackiewicz <cezary.jackiewicz@...il.com>,
	Darren Hart <dvhart@...radead.org>,
	Support Opensource <support.opensource@...semi.com>,
	Milo Kim <milo.kim@...com>,
	Julian Andres Klode <jak@...-linux.org>,
	Marc Dietrich <marvin24@....de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-acpi@...r.kernel.org, linux-input@...r.kernel.org,
	platform-driver-x86@...r.kernel.org,
	patches@...nsource.wolfsonmicro.com, ac100@...ts.launchpad.net,
	linux-tegra@...r.kernel.org, devel@...verdev.osuosl.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	linux-arm-kernel@...ts.infradead.org,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Russell King <linux@....linux.org.uk>,
	Thomas Gleixner <tglx@...utronix.de>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v3 20/20] arm: mach-pxa: Decrement the power supply's
 device reference counter

On Mon 2015-02-09 11:07:12, Krzysztof Kozlowski wrote:
> On pią, 2015-02-06 at 15:59 +0100, Pavel Machek wrote:
> > On Fri 2015-02-06 15:43:08, Krzysztof Kozlowski wrote:
> > > On pią, 2015-02-06 at 14:49 +0100, Pavel Machek wrote:
> > > > On Fri 2015-01-30 15:47:58, Krzysztof Kozlowski wrote:
> > > > > Use power_supply_put() to decrement the power supply's device reference
> > > > > counter.
> > > > > 
> > > > > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > > > > Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> > > > > Reviewed-by: Sebastian Reichel <sre@...nel.org>
> > > > 
> > > > 11,13,20 nothing obviously wrong. But I'm not sure if I studied them
> > > > closely enough to warrant an ACK.
> > > > 
> > > > It would be good to get this into kernel -- I seen no bad comments,
> > > > and it is not going to improve without merge into mainline.
> > > 
> > > Thanks for looking at patchset. It would be really nice if this could be
> > > tested for some time in linux-next. Such testing would help a lot. But I
> > > need acks from various maintainers for that.
> > 
> > Actually, you don't. The various maintainers clearly don't care at
> > this point. They had enough time. So you select one maintainer you
> > want to push this through, and you push it.
> > 
> > Someone may complain, so you'll solve the feedback...
> 
> I am thinking also on another way of solving this huge-patch problem:
> 1. Mark all drivers broken (CONFIG_BROKEN).
> 2. Introduce change in power_supply_register() API. Broken drivers
>    will fail to build.
> 3. Convert broken drivers to new API incrementally (one driver
>    per patch) marking them also non-broken.
> 
> This would be much easier to review but also this would break
> build-bisectability for drivers and some platforms using them (like
> OLPC, compal-laptop, ACPI).

It is easy enough to review as it is, playing with CONFIG_BROKEN will
not improve it. Just push the patch...

> I pushed the patchset here:
> https://git.linaro.org/people/marek.szyprowski/linux-srpol.git/shortlog/refs/heads/v3.19-next-power-supply-core-ownership
> (actually this is v4: added acks/reviews and minor issue fixed; merge
> window has opened so I'll wait with sending this to LKML).

Great... now you just need one of maintainers to merge it...

POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
M:      Sebastian Reichel <sre@...nel.org>
M:      Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
M:      David Woodhouse <dwmw2@...radead.org>
									Pavel

-- 
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