Re: CVS commit: src/sys/dev/usb

[Paul Goyette <paul%whooppee.com@localhost>]

On Wed, 27 May 2020, Taylor R Campbell wrote:

> Not really, because we just need to know whether usb_once_init has
> been run.

OK, great!

> Now, should we use something other than RUN_ONCE, which can both set
> up and tear down?  Sure, that might be better in principle, but there
> probably aren't that many systems that have hotpluggable USB in which
> you might unplug _all_ of the USBs and where you really want to save
> the cost of a couple kernel threads.  So not likely worth much effort.

I was thinking more in terms of someone using drvctl(8) to cause the
detach.  But yeah, it's not a very common use-case, so as long as we
don't _need_ the decrement, it's not worth losing any sleep.   :)

Thanks for the reply.


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