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Re: [Xen-devel] [PATCH] libxl: fix unitialized variables in libxl__primary_console_find



On Mon, 2012-07-23 at 14:43 +0100, Olaf Hering wrote:
> On Mon, Jul 23, Ian Campbell wrote:
> 
> > On Wed, 2012-07-04 at 13:17 +0100, Olaf Hering wrote:
> > > # HG changeset patch
> > > # User Olaf Hering <olaf@xxxxxxxxx>
> > > # Date 1341404234 -7200
> > > # Node ID 5668cb98eebb0a27530c8b52f3ae8cce87d3b863
> > > # Parent  42f76d536b116d2ebad1b6705ae51ecd171d2581
> > > libxl: fix unitialized variables in libxl__primary_console_find
> > 
> > Olaf,
> > 
> > I have a vague recollection of some discussion of this and a different
> > fix but I can't actually find any such discussion and the patch is still
> > in my queue. Is this still needed?
> 
> Yes.
> 
> > > gcc 4.5 as shipped with openSuSE 11.4 does not recognize the case of
> > > LIBXL_DOMAIN_TYPE_INVALID properly:
> > 
> > That's kind of lame of gcc...
> > 
> > I wonder if default: abort() might be more appropriate (I'm not sure
> > what our policy here ended up being).
> 
> libxl__domain_type is a simple and internal function. Perhaps a comment
> about why a 'default' case exists is enough.

I think we've mostly been considering that the "abort()" is in itself
enough documentation that this should never happen.

Ian.


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