ARM: 8763/1: dma-mapping: Use vma_pages()

Use vma_pages() function instead of open coding it.

Generated by scripts/coccinelle/api/vma_pages.cocci.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8c398fedbbb6af30b461fb09cabd89b04cc09648..c25cca69ab4644adcb115ae0cb0e0b97c978dda4 100644 (file)
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -845,7 +845,7 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
                 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;