On Mon, Oct 17, 2011 at 09:15:47PM +0200, Jan Kiszka wrote:
> On 2011-10-17 15:43, Michael S. Tsirkin wrote:
> > On Mon, Oct 17, 2011 at 11:27:45AM +0200, Jan Kiszka wrote:
> >> diff --git a/hw/msi.c b/hw/msi.c
> >> index 3c7ebc3..9055155 100644
> >> --- a/hw/msi.c
> >> +++ b/hw/msi.c
> >> @@ -40,6 +40,14 @@
> >> /* Flag for interrupt controller to declare MSI/MSI-X support */
> >> bool msi_supported;
> >>
> >> +static void msi_unsupported(MSIMessage *msg)
> >> +{
> >> + /* If we get here, the board failed to register a delivery handler. */
> >> + abort();
> >> +}
> >> +
> >> +void (*msi_deliver)(MSIMessage *msg) = msi_unsupported;
> >> +
> >
> > How about we set this to NULL, and check it instead of the bool
> > flag?
> >
>
> Yeah. I will introduce
>
> bool msi_supported(void)
> {
> return msi_deliver != msi_unsupported;
> }
>
> OK?
>
> Jan
>
Looks a bit weird ...
NULL is a pretty standard value for an invalid pointer, isn't it?
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