On Wed, Apr 10, 2024 at 11:04:35AM +0200, Jiri Slaby wrote: > On 09. 04. 24, 19:40, Andy Shevchenko wrote: ... > I see very much of tty_port_alloc_xmit_buf() and tty_port_free_xmit_buf() in > here :). A-ha! > Currently, different locks are used, so the patch is, I think, good for now. > For future, we should switch to the tty port helpers. Sure, but I'm not familiar with TTY. > Actually have you looked if the different locking is an issue at all? IOW, > isn't the tty_port's (and its xmit buf) lifetime enough w/o uart port locks? Nope. I only looked at spin lock differences (irq/irqsave) and decided that irqsave variant is good for both cases. ... So, do I need to do anything or is it good to go as-is? Thanks for review. -- With Best Regards, Andy Shevchenko