intel_iommu: Fix mask may be uninitialized in vtd_context_device_invalidate
With -Werror=maybe-uninitialized configuration we get
../hw/i386/intel_iommu.c: In function ‘vtd_context_device_invalidate’:
../hw/i386/intel_iommu.c:1888:10: error: ‘mask’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
1888 | mask = ~mask;
| ~~~~~^~~~~~~
Add a g_assert_not_reached() to avoid the error.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id:
20210309102742.30442-2-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>