iommu/amd: Add default branch in amd_iommu_capable()

Recent gcc warns about switching on an enumeration, but not having
an explicit case statement for all members of the enumeration. To
show the compiler this is intentional, we simply add a default case
with nothing more than a break statement.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 73e47d93e7a05a5f7b9ebc79096081c573656746..e27f5ee45f8a5dd1c06e1458f6bcfa5f559172bd 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3083,6 +3083,8 @@ static bool amd_iommu_capable(enum iommu_cap cap)
                return (irq_remapping_enabled == 1);
        case IOMMU_CAP_NOEXEC:
                return false;
+       default:
+               break;
        }
 
        return false;