From: Rob Herring <robh@kernel.org>
To: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Stephen Warren <swarren@wwwdotorg.org>,
Javier Martinez Canillas <javier@osg.samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mark Brown <broonie@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Alan Stern <stern@rowland.harvard.edu>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v6 20/22] driver core: Allow deferring probes until late init
Date: Tue, 29 Sep 2015 11:58:47 -0500 [thread overview]
Message-ID: <CAL_JsqL+ZhS7ob6Z7ZPRScAjMBTP4hABe_vh4jPjstKAbScGDg@mail.gmail.com> (raw)
In-Reply-To: <CAAObsKBoBgP_y161qWC_U+yVtbWxudFgBNM7map0jz2WcJws_w@mail.gmail.com>
On Tue, Sep 29, 2015 at 3:05 AM, Tomeu Vizoso
<tomeu.vizoso@collabora.com> wrote:
> On 26 September 2015 at 20:15, Rob Herring <robh@kernel.org> wrote:
>> On 09/21/2015 09:03 AM, Tomeu Vizoso wrote:
>>> Add a field to struct device that instructs the device-driver core to
>>> defer the probe of this device until the late_initcall level.
>>
>> This is true until the next patch with moves deferred probe processing
>> to device_initcall_sync. So disabling this option alone won't totally
>> revert to current behaviour. I guess patch 21 could be reverted if
>> necessary.
>
> Actually, the goal with that commit was to prevent potential problems
> due to the increased pressure on late_initcall, as suggested by
> Grygorii Strashko, but I haven't found yet any evidence of it being
> needed, and in my testing the series boot all boards in kernelci with
> or without this commit. So I would just not commit it for now and only
> consider applying it later if someone reports a problem.
I had similar concerns with assumptions about ordering WRT
late_initcall. I would keep this for now.
Rob
next prev parent reply other threads:[~2015-09-29 16:59 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 14:02 [PATCH v6 0/22] On-demand device probing Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 01/22] driver core: handle -EPROBE_DEFER from bus_type.match() Tomeu Vizoso
2015-10-22 1:00 ` Rafael J. Wysocki
2015-09-21 14:02 ` [PATCH v6 02/22] ARM: amba: Move reading of periphid to amba_match() Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 03/22] of/platform: Point to struct device from device node Tomeu Vizoso
2015-09-22 0:39 ` Rob Herring
[not found] ` <CAL_JsqK5CH+a-xQYcocqPb0XqV3F1shC48YQxsTFf9sXjx_xHQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-22 6:45 ` Tomeu Vizoso
[not found] ` <1442844182-27787-4-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-10-22 1:02 ` Rafael J. Wysocki
2015-10-22 13:01 ` Tomeu Vizoso
2015-10-24 13:57 ` Rafael J. Wysocki
2015-10-27 14:48 ` Tomeu Vizoso
2015-10-27 15:43 ` Rafael J. Wysocki
2015-10-27 21:24 ` Rob Herring
2015-09-21 14:02 ` [PATCH v6 04/22] of: add function to allow probing a device from a OF node Tomeu Vizoso
[not found] ` <1442844182-27787-5-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-10-22 1:06 ` Rafael J. Wysocki
[not found] ` <10119606.2TraDKGPVy-sKB8Sp2ER+y1GS7QM15AGw@public.gmane.org>
2015-10-22 13:03 ` Tomeu Vizoso
2015-10-22 23:54 ` Mark Brown
2015-10-24 14:28 ` Rafael J. Wysocki
2015-10-24 13:55 ` Rafael J. Wysocki
2015-10-24 20:09 ` Rob Herring
2015-10-26 0:13 ` Mark Brown
2015-10-26 0:15 ` Dmitry Torokhov
[not found] ` <20151026001301.GT29919-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-10-26 2:48 ` Rafael J. Wysocki
2015-10-26 3:09 ` Mark Brown
2015-10-26 8:16 ` Geert Uytterhoeven
2015-10-27 14:46 ` Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 05/22] gpio: Probe GPIO drivers on demand Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 06/22] gpio: Probe pinctrl devices " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 07/22] regulator: core: Remove regulator_list Tomeu Vizoso
2015-09-21 19:38 ` Mark Brown
[not found] ` <20150921193803.GB30445-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-09-22 7:21 ` Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 08/22] regulator: core: Probe regulators on demand Tomeu Vizoso
[not found] ` <1442844182-27787-9-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-09-21 19:39 ` Mark Brown
2015-09-21 14:02 ` [PATCH v6 09/22] drm: Probe panels " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 10/22] drm/tegra: Probe dpaux devices " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 11/22] i2c: core: Probe i2c adapters and " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 12/22] pwm: Probe PWM chip " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 13/22] backlight: Probe backlight " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 14/22] usb: phy: Probe phy " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 15/22] clk: Probe clk providers " Tomeu Vizoso
[not found] ` <1442844182-27787-1-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-09-21 14:02 ` [PATCH v6 16/22] pinctrl: Probe pinctrl devices " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 17/22] phy: core: Probe phy providers " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 18/22] dma: of: Probe DMA controllers " Tomeu Vizoso
2015-09-21 14:02 ` [PATCH v6 19/22] power-supply: Probe power supplies " Tomeu Vizoso
2015-09-21 14:03 ` [PATCH v6 20/22] driver core: Allow deferring probes until late init Tomeu Vizoso
2015-09-26 18:15 ` Rob Herring
2015-09-29 8:05 ` Tomeu Vizoso
2015-09-29 16:58 ` Rob Herring [this message]
2015-09-21 14:03 ` [PATCH v6 21/22] driver core: Start processing deferred probes earlier Tomeu Vizoso
2015-10-05 23:52 ` Frank Rowand
2015-10-06 2:49 ` Rob Herring
[not found] ` <CAL_JsqKBKSsvEuoufc=xesSvcA1bf-X43O0YOvuntUJE5NYCJA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-06 10:45 ` Mark Brown
2015-09-21 14:03 ` [PATCH v6 22/22] of/platform: Defer probes of registered devices Tomeu Vizoso
2015-10-21 5:54 ` Scott Wood
2015-10-21 13:44 ` Rob Herring
[not found] ` <CAL_JsqLhZmc8cEC+tFJ25KLe0bQZsWmrRWGBMQake9VN6OjvdQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-21 22:51 ` Scott Wood
[not found] ` <1445467912.701.90.camel-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-10-22 13:04 ` Tomeu Vizoso
2015-10-22 21:27 ` Scott Wood
[not found] ` <1445549230.701.116.camel-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-10-24 13:51 ` Rafael J. Wysocki
2015-10-28 14:40 ` Tomeu Vizoso
2015-10-29 4:17 ` Rob Herring
[not found] ` <CAAObsKDR6pTEDK-G+jw+cr9MD-XoZqU8niqvDFHqFM0ve-+Smw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-29 16:06 ` Scott Wood
[not found] ` <1445406845.701.55.camel-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2015-10-22 0:34 ` Michael Ellerman
2015-09-26 18:17 ` [PATCH v6 0/22] On-demand device probing Rob Herring
[not found] ` <5606E120.3070305-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-09-26 19:22 ` Greg Kroah-Hartman
[not found] ` <20150926192218.GA15657-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-09-30 10:09 ` Tomeu Vizoso
2015-09-30 10:23 ` Greg Kroah-Hartman
2015-09-29 8:08 ` Tomeu Vizoso
2015-10-13 19:57 ` Tomeu Vizoso
2015-10-13 21:21 ` Rob Herring
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