On Sat, Sep 07, 2024 at 10:39:00PM +0200, Thomas Gleixner wrote: > On Fri, Sep 06 2024 at 18:44, John Ogness wrote: ... > I'm 100% that this is just a problem of blindly sharing this with the > regular uart code and not because there is a requirement. See what > serial8250_console_setup() does at the end: > > if (port->dev) > pm_runtime_get_sync(port->dev); > > The corresponding put() is in serial8250_console_exit(). So there is > absolutely zero reason for power management in the console write > functions. It's the usual voodoo programming which nobody noticed > because it did not immediately blow up in their face. It might be historical, but yes, the above is for a reason. And if somebody needs a kernel console to be shutdown, they should remove it from the active consoles. -- With Best Regards, Andy Shevchenko
