* [PATCH] metag: Use vma_pages helper in dma_mmap
@ 2017-11-22 23:08 Vasyl Gomonovych
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From: Vasyl Gomonovych @ 2017-11-22 23:08 UTC (permalink / raw)
To: jhogan, dledford, akpm, bart.vanassche, alexander.h.duyck, linux-metag
Cc: linux-kernel, gomonovych
Use vma_pages function on vma object instead of explicit computation.
arch/metag/kernel/dma.c:345:19-25: WARNING: Consider using vma_pages helper on vma
Generated by: scripts/coccinelle/api/vma_pages.cocci
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
---
arch/metag/kernel/dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index f0ab3a498328..49a3b843ef9f 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -342,7 +342,7 @@ static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- user_size = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ user_size = vma_pages(vma);
spin_lock_irqsave(&consistent_lock, flags);
c = metag_vm_region_find(&consistent_head, (unsigned long)cpu_addr);
--
1.9.1
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2017-11-22 23:08 [PATCH] metag: Use vma_pages helper in dma_mmap Vasyl Gomonovych
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