mirror of
https://github.com/torvalds/linux.git
synced 2024-12-11 13:41:55 +00:00
95f89e0906
After enabling CONFIG_IOMMU_DMA on X86 a new warning appears when compiling vfio: drivers/vfio/vfio_iommu_type1.c: In function ‘vfio_iommu_type1_attach_group’: drivers/vfio/vfio_iommu_type1.c:1827:7: warning: ‘resv_msi_base’ may be used uninitialized in this function [-Wmaybe-uninitialized] ret = iommu_get_msi_cookie(domain->domain, resv_msi_base); ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The warning is a false positive, because the call to iommu_get_msi_cookie() only happens when vfio_iommu_has_sw_msi() returned true. And that only happens when it also set resv_msi_base. But initialize the variable anyway to get rid of the warning. Signed-off-by: Joerg Roedel <jroedel@suse.de> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
||
|---|---|---|
| .. | ||
| mdev | ||
| pci | ||
| platform | ||
| Kconfig | ||
| Makefile | ||
| vfio_iommu_spapr_tce.c | ||
| vfio_iommu_type1.c | ||
| vfio_spapr_eeh.c | ||
| vfio.c | ||
| virqfd.c | ||