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Groups > linux.kernel > #1736215

[PATCH 4/7] microblaze: Cocci spatch "vma_pages"

From Thomas Meyer <thomas@m3y3r.de>
Newsgroups linux.kernel
Subject [PATCH 4/7] microblaze: Cocci spatch "vma_pages"
Date 2017-09-21 00:50 +0200
Message-ID <urVYC-MK-23@gated-at.bofh.it> (permalink)
References <urVOV-J7-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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/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;

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Thread

[PATCH 0/7] Cocci spatch "vma_pages" - v4.14-rc1 Thomas Meyer <thomas@m3y3r.de> - 2017-09-21 00:50 +0200
  [PATCH 2/7] arm64: Cocci spatch "vma_pages" Thomas Meyer <thomas@m3y3r.de> - 2017-09-21 00:50 +0200
    Re: [PATCH 2/7] arm64: Cocci spatch "vma_pages" Robin Murphy <robin.murphy@arm.com> - 2017-09-26 14:00 +0200
  [PATCH 4/7] microblaze: Cocci spatch "vma_pages" Thomas Meyer <thomas@m3y3r.de> - 2017-09-21 00:50 +0200
    Re: [PATCH 4/7] microblaze: Cocci spatch "vma_pages" Michal Simek <monstr@monstr.eu> - 2017-09-25 15:40 +0200

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