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In order not to bring in any link dependencies, bridge driver doesn't use the usual stubs as other conditionally-built code does. However, having the function as a macro imposes a problem with possibly unused variables if just defined as "0". This was worked around by using (dom=dom, iface=iface, 0) which should act like a 0 if used in a condition. However, gcc still bugs about that, so I came up with another way how to fix that. Using static inline functions in the header won't collide with anything, it fixes the bug and does one thing that the macro didn't do. It checks whenther passed variables are pointers of compatible type. It has only one downside, and that is that we need to either a) define it with ATTRIBUTE_UNUSED, which needs an exception in cfg.mk or b) do something like ignore_value(variable); in the function body. I went with the first variant. Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>