linux-kernel - [PATCH 4/7] microblaze: Cocci spatch "vma

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Date:   Thu, 21 Sep 2017 00:29:36 +0200
From:   Thomas Meyer <thomas@...3r.de>
To:     monstr@...str.eu, linux-kernel@...r.kernel.org
Subject: [PATCH 4/7] microblaze: Cocci spatch "vma_pages"

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@...3r.de>
---

diff -u -p a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -165,7 +165,7 @@ int dma_direct_mmap_coherent(struct devi
 			     unsigned long attrs)
 {
 #ifdef CONFIG_MMU
-	unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long off = vma->vm_pgoff;
 	unsigned long pfn;