linux-kernel - [PATCH 15/16] spi/s3c64xx: use correct dma_transfer

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Date:	Fri,  5 Oct 2012 16:55:29 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, arm@...nel.org,
	Arnd Bergmann <arnd@...db.de>, Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-samsung-soc@...r.kernel.org,
	spi-devel-general@...ts.sourceforge.net
Subject: [PATCH 15/16] spi/s3c64xx: use correct dma_transfer_direction type

There is a subtle difference between dma_transfer_direction and
dma_data_direction: the former is used by the dmaengine framework,
while the latter is used by the dma-mapping API. Although the
purpose is comparable, the actual values are different and must
not be mixed. In this case, the driver just wants to use
dma_transfer_direction.

Without this patch, building s3c6400_defconfig results in:

drivers/spi/spi-s3c64xx.c: In function 's3c64xx_spi_dmacb':
drivers/spi/spi-s3c64xx.c:239:21: warning: comparison between
	'enum dma_data_direction' and 'enum dma_transfer_direction' [-Wenum-compare]

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Ben Dooks <ben-linux@...ff.org>
Cc: Kukjin Kim <kgene.kim@...sung.com>
Cc: Grant Likely <grant.likely@...retlab.ca>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-samsung-soc@...r.kernel.org
Cc: spi-devel-general@...ts.sourceforge.net
---
 drivers/spi/spi-s3c64xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index d1c8441f..2e44dd6 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -132,7 +132,7 @@
 
 struct s3c64xx_spi_dma_data {
 	unsigned		ch;
-	enum dma_data_direction direction;
+	enum dma_transfer_direction direction;
 	enum dma_ch	dmach;
 	struct property		*dma_prop;
 };
-- 
1.7.10

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