79178edd2a
Coverity detected an issue (CID 1421903) with potential call of clz64(0) which returns 64 which make it do "<<" with a negative number. This checks the mask and avoids undefined behaviour. In practice pgsizes and memory_region_iommu_get_min_page_size() always have some common page sizes and even if they did not, the resulting page size would be 0x8000.0000.0000.0000 (gcc 9.2) and ioctl(VFIO_IOMMU_SPAPR_TCE_CREATE) would fail anyway. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Message-Id: <20200324063912.25063-1-aik@ozlabs.ru> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> |
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| .. | ||
| amd-xgbe.c | ||
| ap.c | ||
| calxeda-xgmac.c | ||
| ccw.c | ||
| common.c | ||
| display.c | ||
| igd.c | ||
| Kconfig | ||
| Makefile.objs | ||
| pci-quirks.c | ||
| pci.c | ||
| pci.h | ||
| platform.c | ||
| spapr.c | ||
| trace-events | ||