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Groups > linux.kernel > #1736210
| From | Thomas Meyer <thomas@m3y3r.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/7] ARM: dma-mapping: Cocci spatch "vma_pages" |
| Date | 2017-09-21 00:50 +0200 |
| Message-ID | <urVYC-MK-13@gated-at.bofh.it> (permalink) |
| References | <urVOV-J7-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Use vma_pages function on vma object instead of explicit computation.
Found by coccinelle spatch "api/vma_pages.cocci"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
---
diff -u -p a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -846,7 +846,7 @@ static int __arm_dma_mmap(struct device
unsigned long attrs)
{
int ret;
- unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ unsigned long nr_vma_pages = vma_pages(vma);
unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long pfn = dma_to_pfn(dev, dma_addr);
unsigned long off = vma->vm_pgoff;
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[PATCH 1/7] ARM: dma-mapping: Cocci spatch "vma_pages" Thomas Meyer <thomas@m3y3r.de> - 2017-09-21 00:50 +0200
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