From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 8 Sep 2008 09:53:48 +0000 (+0900)
Subject: swiotlb: use map_single instead of swiotlb_map_single in swiotlb_alloc_coherent
X-Git-Tag: v2.6.28-rc1~712^2^4~55
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?p=linux-2.6-omap-h63xx.git;a=commitdiff_plain;h=9dfda12b8b769e224ca4efbc35ace4524b9c017b

swiotlb: use map_single instead of swiotlb_map_single in swiotlb_alloc_coherent

We always need swiotlb memory here so address_needs_mapping and
swiotlb_force testings are irrelevant. map_single should be used here
instead of swiotlb_map_single.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 3066ffe1f9e..2fb485d0e7e 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -483,12 +483,9 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		 * swiotlb_map_single(), which will grab memory from
 		 * the lowest available address range.
 		 */
-		dma_addr_t handle;
-		handle = swiotlb_map_single(NULL, NULL, size, DMA_FROM_DEVICE);
-		if (swiotlb_dma_mapping_error(hwdev, handle))
+		ret = map_single(hwdev, NULL, size, DMA_FROM_DEVICE);
+		if (!ret)
 			return NULL;
-
-		ret = bus_to_virt(handle);
 	}
 
 	memset(ret, 0, size);