linux-kernel - Re: [PATCH v2] init: Do not select DEBUG

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Message-ID: <c3d57b73-c282-6114-52a8-2375b5dd0b61@kernel.org>
Date:   Thu, 11 Apr 2019 18:27:04 -0400
From:   Sinan Kaya <Okaya@...nel.org>
To:     Kees Cook <keescook@...omium.org>,
        Josh Triplett <josh@...htriplett.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Adrian Reber <adrian@...as.de>,
        Richard Guy Briggs <rgb@...hat.com>,
        Petr Mladek <pmladek@...e.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Mikulas Patocka <mpatocka@...hat.com>,
        Robin Murphy <robin.murphy@....com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Changbin Du <changbin.du@...el.com>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Sam Ravnborg <sam@...nborg.org>, Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v2] init: Do not select DEBUG_KERNEL by default

On 4/11/2019 6:21 PM, Kees Cook wrote:
>> Proposed alternative plan: let's add a new symbol, something like
>> DEBUG_MISC ("Miscellaneous debug code that should be under a more
>> specific debug option but isn't"), make it depend on DEBUG_KERNEL and be
>> "default DEBUG_KERNEL" but allow itself to be turned off, and then
>> mechanically change the small handful of "#ifdef CONFIG_DEBUG_KERNEL" to
>> "#ifdef CONFIG_DEBUG_MISC".
>>
>> Does that sound like an appropriately rapid solution for this bug?
> Sure, that sounds fine to me. Sinan can you take care of that for v4?

Sure, let me work on this.