On Wed, Jul 7, 2021 at 10:50 AM Jiri Slaby [off-list ref] wrote:

On 05. 07. 21, 14:53, Zheyu Ma wrote:

So how it comes an interrupt came before
neo_param() in jsm_tty_open was called?

If IRQ is shared we have a special debug feature to test shared IRQs
on freeing IRQ stage (*).
But it doesn't matter, the IRQ handler must survive at any stage after
the action has been listed.

*) I believe we have quite a lot of drivers that will fail that test...

-- 
With Best Regards,
Andy Shevchenko