linux-kernel - Re: [PATCH] panic: use error_report

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Date:   Mon, 15 Nov 2021 15:40:24 +0100
From:   Marco Elver <elver@...gle.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Petr Mladek <pmladek@...e.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Wei Liu <wei.liu@...nel.org>, Mike Rapoport <rppt@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        John Ogness <john.ogness@...utronix.de>,
        linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        Alexander Popov <alex.popov@...ux.com>
Subject: Re: [PATCH] panic: use error_report_end tracepoint on warnings

On Mon, 15 Nov 2021 at 15:38, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Mon, Nov 15, 2021 at 09:56:30AM +0100, Marco Elver wrote:
> > Introduce the error detector "warning" to the error_report event and use
> > the error_report_end tracepoint at the end of a warning report.
> >
> > This allows in-kernel tests but also userspace to more easily determine
> > if a warning occurred without polling kernel logs.
>
> ...
>
> >  enum error_detector {
> >       ERROR_DETECTOR_KFENCE,
> > -     ERROR_DETECTOR_KASAN
> > +     ERROR_DETECTOR_KASAN,
> > +     ERROR_DETECTOR_WARN
>
> ...which exactly shows my point (given many times somewhere else) why comma
> is good to have when we are not sure the item is a terminator one in the enum
> or array of elements.

So you want me to add a comma?

(I'm not participating in bikeshedding here, just tell me what to do.)

Thanks,
-- Marco