From: Xishi Qiu <qiuxishi@huawei.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH V2] cma: use macro PFN_DOWN when converting size to pages
Date: Mon, 5 Aug 2013 17:09:17 +0800 [thread overview]
Message-ID: <51FF6BBD.2090606@huawei.com> (raw)
Use "PFN_DOWN(r->size)" instead of "r->size >> PAGE_SHIFT".
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
---
drivers/base/dma-contiguous.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 0ca5442..b3d711d 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -206,8 +206,7 @@ static int __init cma_init_reserved_areas(void)
for (; i; --i, ++r) {
struct cma *cma;
- cma = cma_create_area(PFN_DOWN(r->start),
- r->size >> PAGE_SHIFT);
+ cma = cma_create_area(PFN_DOWN(r->start), PFN_DOWN(r->size));
if (!IS_ERR(cma))
dev_set_cma_area(r->dev, cma);
}
--
1.7.1
--
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next reply other threads:[~2013-08-05 9:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-05 9:09 Xishi Qiu [this message]
2013-08-05 19:58 ` Johannes Weiner
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