linux-kernel - Re: [PATCH] net: trivial MLX4

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Message-ID: <20070510124926.GB18534@linux-sh.org>
Date:	Thu, 10 May 2007 21:49:26 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Roland Dreier <rolandd@...co.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: trivial MLX4_DEBUG dependency fix.

On Thu, May 10, 2007 at 04:42:37AM -0700, Roland Dreier wrote:
>  > CONFIG_MLX4_DEBUG works out to a def_bool y for those that
>  > have CONFIG_EMBEDDED set. Make it depend on MLX4_CORE..
> 
> Thanks, applied...  (by the way, this bug just results in an
> extraneous CONFIG variable being defined, right?  There's no further
> breakage -- or am I misunderstanding the situation?)
> 
Correct, there was no real breakage, just the extraneous variable.
SLUB_DEBUG had the same symptoms, which is why I referenced it ;-)

>  > I'll let someone else wonder why debugging output is default enabled,
>  > this seems to be a worrying trend as of late.
> 
> Actually this option just controls whether to build the debugging
> output at all.  The output is controlled at runtime with a module
> parameter (which can be changed via sysfs after the module is loaded),
> and the output defaults to off.
> 
> The reason why I want building the debugging stuff to default to y is
> so that distros automatically build modules with debugging enabled.
> Otherwise it's a pain to try and gather info from someone who has
> problems with a kernel they didn't build.
> 
That's more reasonable at least. Thanks for the clarification.
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