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Re: kexec: device shutdown vs. remove

From ebiederm@xmission.com (Eric W. Biederman)
Newsgroups linux.kernel
Subject Re: kexec: device shutdown vs. remove
Date 2016-07-25 00:00 +0200
Message-ID <rYzBf-4C0-3@gated-at.bofh.it> (permalink)
References <rYcbD-7kW-1@gated-at.bofh.it> <rYjZv-3Nk-7@gated-at.bofh.it> <rYru1-8mY-1@gated-at.bofh.it>
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Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:

> On Sat, 2016-07-23 at 22:18 -0700, Guenter Roeck wrote:
>> I suspect that using (or depending on) the remove function may not be feasible
>> anymore after the recent effort by Paul Gortmaker to make drivers explicitly
>> non-modular if they are only configurable as boolean. In many cases, this
>> involved dropping remove functions.
>
> A lot of drivers we care about are modular. But maybe the right
> approach is to do something like remove() if it exist and shutdown() if
> it doesn't ? Or a new callback for kexec ? quiesce() ?

Perhaps remove if shutdown does not exist.  What this really takes is
someone to care enough to sort through this mess.

Eric

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Thread

kexec: device shutdown vs. remove Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-07-23 23:00 +0200
  Re: kexec: device shutdown vs. remove Guenter Roeck <linux@roeck-us.net> - 2016-07-24 07:20 +0200
    Re: kexec: device shutdown vs. remove Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-07-24 15:20 +0200
      Re: kexec: device shutdown vs. remove ebiederm@xmission.com (Eric W. Biederman) - 2016-07-25 00:00 +0200
        Re: kexec: device shutdown vs. remove Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-07-25 02:40 +0200
  Re: kexec: device shutdown vs. remove ebiederm@xmission.com (Eric W. Biederman) - 2016-07-24 07:40 +0200
    Re: kexec: device shutdown vs. remove Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-07-24 15:20 +0200
      Re: kexec: device shutdown vs. remove ebiederm@xmission.com (Eric W. Biederman) - 2016-07-24 23:50 +0200

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