Hello, On Mon, Aug 27, 2018 at 07:49:04AM -0700, jun qian wrote: > Before the program enters the uart ISR, the local interrupt has been > disabled by the system, so it's not appropriate to use spin_lock_irqsave > interface in the ISR. "not appropriate" is a bit strong. It's not as optimal as it could be though, yes. The change is fine, Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
