Re: [PATCH v4 3/3] media: atomisp: Only use trace_printk if allowed

[Joe Perches]

On Thu, 2020-08-20 at 21:57 -0400, Steven Rostedt wrote:
> On Fri, 21 Aug 2020 09:39:19 +0800
> Nicolas Boichat <drinkcat@xxxxxxxxxxxx> wrote:
[]
> > Some other approaches/ideas:
> >  1. Filter all lkml messages that contain trace_printk. Already found
> > 1 instance, and I can easily reply to those with a semi-canned answer,
> > if I remember to check that filter regularly (not sustainable in the
> > long run...).
> 
> Added Joe Perches to the thread.
> 
> We can update checkpatch.pl to complain about a trace_printk() that it
> finds in the added code.

Why?

I don't see much value in a trace_printk checkpatch warning.
tracing is still dependent on CONFIG_TRACING otherwise
trace_printk is an if (0)

ELI5 please.