linux-kernel - Re: CONFIG_DEBUG_TEST_DRIVER

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Message-ID: <CAL_Jsq+30GuEJqEF5mnDtSBej3kKSVsGBKwm6bNGGzDxDHThVA@mail.gmail.com>
Date:   Thu, 6 Oct 2016 23:06:06 -0500
From:   Rob Herring <robh@...nel.org>
To:     Laura Abbott <labbott@...hat.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: CONFIG_DEBUG_TEST_DRIVER_REMOVE needs a warning

On Thu, Oct 6, 2016 at 6:53 PM, Laura Abbott <labbott@...hat.com> wrote:
> On a whim, I decided to turn on CONFIG_DEBUG_TEST_DRIVER_REMOVE on
> Fedora rawhide since it sounded harmless enough. It spewed warnings
> and panicked some systems. Clearly it's  doing its job
> well of finding drivers that can't handle remove properly and I
> underestimated it. I was expecting to maybe find a driver or two.
> Can we get stronger Kconfig text indicating that this shouldn't be
> turned on lightly? I'll be turning the option off in Fedora but sending
> out reports from what was found.

It hides behind CONFIG_DEBUG already. Is there a better option that
distros won't turn on?

Rob