From: Vasyl Gomonovych <gomonovych@gmail.com>
To: jhogan@kernel.org, dledford@redhat.com,
akpm@linux-foundation.org, bart.vanassche@sandisk.com,
alexander.h.duyck@intel.com, linux-metag@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, gomonovych@gmail.com
Subject: [PATCH] metag: Use vma_pages helper in dma_mmap
Date: Thu, 23 Nov 2017 00:08:38 +0100 [thread overview]
Message-ID: <1511392118-24101-1-git-send-email-gomonovych@gmail.com> (raw)
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
reply other threads:[~2017-11-22 23:08 UTC|newest]
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