linux-kernel - Re: [PATCH v2] modpost: fix asprintf warnings

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Date:	Thu, 10 Dec 2009 21:37:52 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Mike Frysinger <vapier@...too.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] modpost: fix asprintf warnings

On Thu, 10 Dec 2009 11:46:19 am Mike Frysinger wrote:
> On compilers with security warnings enabled by default, we get:
> 
> scripts/mod/modpost.c: In function 'get_markers':
> scripts/mod/modpost.c:1562: warning: ignoring return value of 'asprintf',
>                                      declared with attribute warn_unused_result
> scripts/mod/modpost.c: In function 'add_marker':
> scripts/mod/modpost.c:1982: warning: ignoring return value of 'asprintf',
>                                      declared with attribute warn_unused_result

Actually I think these warnings only occur with -DFORTIFY_SOURCE.  This is
turned on by Ubuntu at least.

I think they're a bad idea (if you really don't care, suppressing them is
really painful), but that's a separate battle...

Applied,
Rusty.
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