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From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: arm-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>,
	spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH v2 v2 v2 8/8] spi/s3c64xx: use correct dma_transfer_direction type
Date: Tue,  9 Oct 2012 22:13:58 +0200	[thread overview]
Message-ID: <1349813638-4617-9-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1349813638-4617-1-git-send-email-arnd-r2nGTMty4D4@public.gmane.org>

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-r2nGTMty4D4@public.gmane.org>
Cc: Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
Cc: Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
---
 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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  parent reply	other threads:[~2012-10-09 20:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-09 20:13 [PATCH v2 0/8] ARM: mostly harmless gcc warnings Arnd Bergmann
     [not found] ` <1349813638-4617-1-git-send-email-arnd-r2nGTMty4D4@public.gmane.org>
2012-10-09 20:13   ` Arnd Bergmann [this message]
2012-10-17  8:11     ` [PATCH v2 v2 v2 8/8] spi/s3c64xx: use correct dma_transfer_direction type Kukjin Kim
2012-10-17 13:27       ` Arnd Bergmann

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