linux-kernel - [PATCH v2 08/15] DMA: shdma: move two macros to a header

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Date:	Fri, 19 Jul 2013 18:29:33 +0200
From:	Guennadi Liakhovetski <g.liakhovetski@....de>
To:	linux-kernel@...r.kernel.org
Cc:	linux-sh@...r.kernel.org, Magnus Damm <magnus.damm@...il.com>,
	Simon Horman <horms@...ge.net.au>,
	Vinod Koul <vinod.koul@...el.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Guennadi Liakhovetski <g.liakhovetski+renesas@...il.com>
Subject: [PATCH v2 08/15] DMA: shdma: move two macros to a header

Move two generic pointer-conversion macros to a header for common shdma use.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@...il.com>
---
 drivers/dma/sh/shdma-base.c |    3 ---
 drivers/dma/sh/shdma-of.c   |    2 --
 include/linux/shdma-base.h  |    3 +++
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index c5ea256..5b92e72 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -36,9 +36,6 @@ enum shdma_desc_status {
 
 #define NR_DESCS_PER_CHANNEL 32
 
-#define to_shdma_chan(c) container_of(c, struct shdma_chan, dma_chan)
-#define to_shdma_dev(d) container_of(d, struct shdma_dev, dma_dev)
-
 /*
  * For slave DMA we assume, that there is a finite number of DMA slaves in the
  * system, and that each such slave can only use a finite number of channels.
diff --git a/drivers/dma/sh/shdma-of.c b/drivers/dma/sh/shdma-of.c
index 2acf7b6..80d07b5 100644
--- a/drivers/dma/sh/shdma-of.c
+++ b/drivers/dma/sh/shdma-of.c
@@ -17,8 +17,6 @@
 #include <linux/platform_device.h>
 #include <linux/shdma-base.h>
 
-#define to_shdma_chan(c) container_of(c, struct shdma_chan, dma_chan)
-
 static struct dma_chan *shdma_of_xlate(struct of_phandle_args *dma_spec,
 				       struct of_dma *ofdma)
 {
diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h
index 31cf89f..45191d7 100644
--- a/include/linux/shdma-base.h
+++ b/include/linux/shdma-base.h
@@ -114,6 +114,9 @@ struct shdma_dev {
 #define shdma_for_each_chan(c, d, i) for (i = 0, c = (d)->schan[0]; \
 				i < (d)->dma_dev.chancnt; c = (d)->schan[++i])
 
+#define to_shdma_chan(c) container_of(c, struct shdma_chan, dma_chan)
+#define to_shdma_dev(d) container_of(d, struct shdma_dev, dma_dev)
+
 int shdma_request_irq(struct shdma_chan *, int,
 			   unsigned long, const char *);
 bool shdma_reset(struct shdma_dev *sdev);
-- 
1.7.2.5

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