Re: [RFC][PATCH 0/6] Use printk_safe context for TTY and UART port locks

[Linus Torvalds]

On Wed, Jun 20, 2018 at 11:50 AM Sergey Senozhatsky
<sergey.senozhatsky.work@xxxxxxxxx> wrote:
>
> It's not UART on its own that immediately calls into printk(), that would
> be trivial to fix, it's all those subsystems that serial console driver
> can call into.

We already have the whole PRINTK_SAFE_CONTEXT_MASK model that only
adds it to a secondary buffer if you get recursion.  Why isn't that
triggering? That's the whole point of it.

I absolutely do *not*  want to see any crazy changes to tty drivers.  No no no.

                   Linus