On 7/15/18 6:34 PM, Oleksandr Tymoshenko wrote:
> Author: gonzo
> Date: Mon Jul 16 01:34:45 2018
> New Revision: 336326
> URL: https://svnweb.freebsd.org/changeset/base/336326
> 
> Log:
>   Remove MODULE_PNP_INFO for ig4(4) driver
>   
>   ig4(4) does not support suspend/resume but present on the hardware where
>   such functionality is critical, like laptops. Remove PNP info to avoid
>   breaking suspend/resume on the systems where ig4(4) load is not explicitly
>   requested by the user.
>   
>   PR:             229791
>   Reported by:    Ali Abdallah

I wonder if we don't want instead a way to tag a module as "don't autoload"
so that you can still have a way to say "show me which unprobed devices
have modules available".  One option would be to have an rc.conf knob which
is a regex that gets used with 'egrep -v' in the rc.d script on the output
of devmatch.  This has the slight advantage that a user can customize it
via rc.conf.  (For example, when working on cxgbe(4) on my dev boxes I don't
want it to autoload, but in a production environment we might want it to
autoload by default.)  Another option might be to add some new type of
PNP info that is a boolean "autoload" that defaults to true and teach
devmatch to honor the boolean.

-- 
John Baldwin
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