linux-kernel - [PATCH] drm/gma500: use vma

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Message-Id: <1463836880-16878-1-git-send-email-falakreyaz@gmail.com>
Date:	Sat, 21 May 2016 18:51:01 +0530
From:	Muhammad Falak R Wani <falakreyaz@...il.com>
To:	Patrik Jakobsson <patrik.r.jakobsson@...il.com>
Cc:	David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] drm/gma500: use vma_pages().

Replace explicit computation of vma page count by a call to
vma_pages()

Signed-off-by: Muhammad Falak R Wani <falakreyaz@...il.com>
---
 drivers/gpu/drm/gma500/framebuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 7440bf9..5486e7e 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -125,7 +125,7 @@ static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	unsigned long phys_addr = (unsigned long)dev_priv->stolen_base +
 				  psbfb->gtt->offset;
 
-	page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	page_num = vma_pages(vma);
 	address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT);
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-- 
1.9.1