On Friday, August 03, 2012, Ming Lei wrote: > On Fri, Aug 3, 2012 at 10:20 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, 2 Aug 2012, Rafael J. Wysocki wrote: > > > Hmmm. You'd probably want a version that does a "get" at the same > > time. I suppose you would call func directly if the device was already > > resumed, without going through the workqueue? > > Maybe it isn't good, the 'func' might not be run in the current context > (irq context or some spinlock is held). Then I'd say don't use this interface. If you have code that needs to be run in a different context, then you have to use a work item (or equivalent) anyway and you can do a synchronous runtime resume from there. The problem we want to address here is when there's code that should be run as soon as the device is active, preferably _without_ a context switch. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
