On Mon, 21 Sep 2015, Roger Quadros wrote: > Using spin_lock() in hard irq handler is pointless > and causes a BUG() in RT (real-time) configuration > so get rid of it. Wait a minute. Who says spin_lock is pointless in an IRQ handler? And who says it causes a BUG in RT configurations? And if those claims are true, why do we have spin_lock in IRQ handlers for various host controller drivers? Alan Stern -- 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
