Re: Can printk() sleep at runtime?

[Stephen Boyd]

Quoting Linus Torvalds (2018-05-31 07:32:10)
> On Thu, May 31, 2018 at 5:05 AM Petr Mladek <pmladek@xxxxxxxx> wrote:
> >
> > Anyway, we need to fix or remove this format. vsprintf-like functions
> > are called in any context and nobody expect that they might sleep.
> 
> Ack. I guess the argument is that "%pCr" is rare, and none of *those*
> users may care, but I do think that doing things wrong as-is.
> 
> It's too subtle to have to know you're in a particular locking context
> when you use a particular %p modifier.
> 

Agreed. Removing the format seems to be the best approach. It looks like
only Geert has used it in the last few years and it hasn't been used
much otherwise.