linux-kernel - Re: [PATCH v4 6/8] mfd: make mfd_remove

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Message-ID: <CAMuHMdUhuC-8vfXKNLmONexnQeokX4xFLNR=MVXFOSWE1O3Hsg@mail.gmail.com>
Date:	Mon, 6 Jul 2015 11:24:20 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Lee Jones <lee.jones@...aro.org>,
	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dmaengine@...r.kernel.org,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	Mike Turquette <mturquette@...aro.org>
Subject: Re: [PATCH v4 6/8] mfd: make mfd_remove_devices() iterate in reverse order

On Mon, Jul 6, 2015 at 11:10 AM, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> On Wed, 2015-06-24 at 12:31 +0100, Lee Jones wrote:
>> On Mon, 15 Jun 2015, Andy Shevchenko wrote:
>>
>> > The newly introduced device_for_each_child_reverse() would be used
>> > when MFD
>> > core removes the device.
>> >
>> > After this patch applied the devices will be removed in a reversed
>> > order. This
>> > behaviour is useful when devices have implicit dependency on order,
>> > i.e.
>> > consider MFD device with serial bus controller, such as SPI, and
>> > DMA IP that is
>> > attached to serial bus controller: before remove the DMA driver we
>> > have to be
>> > ensured that no DMA transfers is ongoing and the requested channel
>> > are unused.
>> >
>> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>> > ---
>> >  drivers/mfd/mfd-core.c | 2 +-
>> >  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> Applied, thanks.
>
> Hmm… Seems kinda mistake. I can't see this applied (and required
> previous patches 4 and 5) to any of your branch neither in (today's)
> linux-next.

New stuff applied after v4.1 couldn't show up in -next before v4.2-rc1 was
released (which just happened last night)?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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