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-rw-r--r--include/linux/iommu.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 5e7fe519430a..9ca6e6b8084d 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -547,7 +547,7 @@ static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,
* structure can be rewritten.
*/
if (gather->pgsize != size ||
- end < gather->start || start > gather->end) {
+ end + 1 < gather->start || start > gather->end + 1) {
if (gather->pgsize)
iommu_iotlb_sync(domain, gather);
gather->pgsize = size;