Re: [PATCH v1 5/5] driver core: Add fw_devlink.debug command line boolean parameter

[Saravana Kannan]

On Tue, Sep 14, 2021 at 8:10 AM Andrew Lunn <andrew@xxxxxxx> wrote:
>
> On Mon, Sep 13, 2021 at 09:39:27PM -0700, Saravana Kannan wrote:
> > When the parameter is set, it enables all the debug logs that would be
> > useful for debugging fw_devlink issues.
> >
> > I'll add the documentation if we agree that we should add this param.
>
> https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html
>
> It is better to make use of existing infrastructure, maybe with
> extensions if needed.

I did think of this, but the problem is that dynamic debug logs can
get compiled out (when DYNAMIC_DEBUG isn't set). I think debugging of
fw_devlink needs to be possible without having to recompile the
kernel. So in a sense similar to how initcall_debug works today.

-Saravana