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

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Message-ID: <e901a9cc-f335-fb31-535c-97dce2ca8f5b@kernel.org>
Date:   Wed, 10 Apr 2019 23:13:52 -0400
From:   Sinan Kaya <Okaya@...nel.org>
To:     Josh Triplett <josh@...htriplett.org>,
        Kees Cook <keescook@...omium.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 4/10/2019 11:02 PM, Josh Triplett wrote:
> Then let's fix*that*, and get checkpatch to help enforce it in the future. EXPERT doesn't affect code generation, and neither should this.

I think we have to do both. We need to go after the users as well as
solve the immediate problem per this patch.

As Mathieu identified, CONFIG_DEBUG_KERNEL is being used all over the
place and getting subsystem owners to remove let alone add a check
to checkpatch is just going to take time.

Please let us know if you are OK with this plan.