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. +--------------------+--------------------------+-----------------------+ | Paul Goyette | PGP Key fingerprint: | E-mail addresses: | | (Retired) | FA29 0E3B 35AF E8AE 6651 | p...@whooppee.com | | Software Developer | 0786 F758 55DE 53BA 7731 | pgoye...@netbsd.org | +--------------------+--------------------------+-----------------------+
