On 10/23/20 4:49 AM, Petr Mladek wrote: > On Thu 2020-10-22 16:59:15, John Ogness wrote: >> On 2020-10-22, Guenter Roeck <li...@roeck-us.net> wrote: >>> The whole point of the exercise is to disable all consoles, including >>> default ones which are not explicitly specified on the command line. >> >> In that case I think specifying something like: >> >> console=null >> >> makes that most sense. I think implementing a "null console" driver >> would be quite simple. Then there would be no need for special handling >> in the printk subsystem. > > Heh, it actually already exists and has been created for exactly this > purpose, see the commit 3117ff13f104e98b05b6 ("tty: Add NULL TTY > driver"). >
Ok with me to use that, as long as we add code that maps console= and console=null to console=ttynull. Guenter > Regarding the interface: > > + console=null or console= is OK when people do not want consoles > at all > > + mute_console (or another extra parameter) would be needed if > people wanted to have login console. > > It is true that nobody asked for the login support. So, the null > console should be enough for now. > > Best Regards, > Petr >