diff options
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 0efa67b299b6..a25d6b0e22a4 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -2169,6 +2169,9 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size) if (!bitmap_size) return ERR_PTR(-EINVAL); + WARN(!IS_ALIGNED(size, SZ_128M), + "size is not aligned to 128M, alignment enforced"); + if (bitmap_size > PAGE_SIZE) { extensions = bitmap_size / PAGE_SIZE; bitmap_size = PAGE_SIZE; |