Re: [PATCH v6 20/22] driver core: Allow deferring probes until late init

From	Rob Herring <robh@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v6 20/22] driver core: Allow deferring probes until late init
Date	2015-09-29 19:00 +0200
Message-ID	<qe6pX-3RG-1@gated-at.bofh.it> (permalink)
References	<qb9X3-rF-9@gated-at.bofh.it> <qb9X6-rF-61@gated-at.bofh.it> <qd2eJ-7JC-11@gated-at.bofh.it> <qdY93-Eb-3@gated-at.bofh.it>
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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
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Re: [PATCH v6 20/22] driver core: Allow deferring probes until late  init Rob Herring <robh@kernel.org> - 2015-09-26 20:20 +0200
  Re: [PATCH v6 20/22] driver core: Allow deferring probes until late init Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-09-29 10:10 +0200
    Re: [PATCH v6 20/22] driver core: Allow deferring probes until late init Rob Herring <robh@kernel.org> - 2015-09-29 19:00 +0200

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