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Commit 9a949005 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "arm: dma-mapping: WARN_ON if iova is not 128M aligned"

parents c32398e5 eb5c4e0e

arch/arm/mm/dma-mapping.c

+3 −0
Original line number Diff line number Diff line
@@ -2218,6 +2218,9 @@ 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;