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dma-remap: drop nth_page() in dma_common_contiguous_remap()

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dma_common_contiguous_remap() is used to remap an "allocated contiguous
region".  Within a single allocation, there is no need to use nth_page()
anymore.

Neither the buddy, nor hugetlb, nor CMA will hand out problematic page
ranges.

Link: https://lkml.kernel.org/r/20250901150359.867252-24-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand
2025-09-01 17:03:44 +02:00
committed by Andrew Morton
parent 6972706f95
commit a16c46c240
1 changed files with 1 additions and 1 deletions
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2
kernel/dma/remap.c
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@@ -49,7 +49,7 @@ void *dma_common_contiguous_remap(struct page *page, size_t size,
if (!pages)
return NULL;
for (i = 0; i < count; i++)
pages[i] = nth_page(page, i);
pages[i] = page++;
vaddr = vmap(pages, count, VM_DMA_COHERENT, prot);
kvfree(pages);