From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@sw.ru>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Whine about suspicious return values from module's ->init() hook
Date: Wed, 6 Feb 2008 09:48:10 +1100 [thread overview]
Message-ID: <200802060948.11133.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20080204222457.286b962f.akpm@linux-foundation.org>
On Tuesday 05 February 2008 17:24:57 Andrew Morton wrote:
> On Tue, 5 Feb 2008 17:08:37 +1100 Rusty Russell <rusty@rustcorp.com.au>
wrote:
> > On Tuesday 05 February 2008 14:53:18 Andrew Morton wrote:
> > > That risks killing previously-working setups. WARN_ON is sufficient.
> >
> > I disagree. WARN_ON is useful for developers, but they can handle
> > BUG_ON, too.
>
> For developers, BUG_ON has zero benefit relative to WARN_ON.
>
> For non-developers, BUG_ON has large disadvantages relative to WARN_ON.
>
> It's a no-brainer.
For non-developers, WARN_ON is a noop.
For developers, WARN_ON is often a noop.
BUG_ON() will make us fix it in return for short-term pain. WARN_ON() wont,
in return for less pain. It's mildly better than nothing, but not worth the
patch.
Rusty.
next prev parent reply other threads:[~2008-02-05 22:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-04 15:42 [PATCH] Whine about suspicious return values from module's ->init() hook Alexey Dobriyan
2008-02-04 21:15 ` Andrew Morton
2008-02-05 3:43 ` Rusty Russell
2008-02-05 3:53 ` Andrew Morton
2008-02-05 6:08 ` Rusty Russell
2008-02-05 6:24 ` Andrew Morton
2008-02-05 22:48 ` Rusty Russell [this message]
2008-02-05 23:37 ` Andrew Morton
2008-02-06 6:55 ` Rusty Russell
2008-02-10 22:09 ` [PATCH v2] " Alexey Dobriyan
2008-03-04 3:24 ` Rusty Russell
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