On Mon, Apr 1, 2013 at 3:53 PM, Jim Mankovich <jm...@hp.com> wrote:
> Dan, Z,
>
> I use gcc 4.6.3 with a fairly recent linux stable kernel release.
>
> Here is an example of why I would like the -Wno-unused-result flag to
> remain.   Notice that if you take the
> TOB kernel and compile with a pretty recent compiler and kernel you get a
> bunch of unused result warnings
> that are not of much interest.   These could be cleaned up by casting the
> returns from these system calls to
> void and these warnings would go away and then we would not need
> -Wno-unused-result at all.   This would
> the best way to get rid of the -Wno-unused-result flag and maintain a clean
> compilation.

Actually we probably should check the return values for failure!  I'll
try and see if I can find a system here which gives these errors and
see just how bad it is to clean this up.

Or... would we rather just punt and put -Wno-unused-return back in?

thanks
dan

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