linux-kernel - [PATCH v2 3/3] dmaengine: Move dma_get_{,any_}slave

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Message-Id: <20200121093311.28639-4-geert+renesas@glider.be>
Date:   Tue, 21 Jan 2020 10:33:11 +0100
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Matt Porter <mporter@...sulko.com>,
        Arnd Bergmann <arnd@...db.de>, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v2 3/3] dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h

The functions dma_get_slave_channel() and dma_get_any_slave_channel()
are called from DMA engine drivers only.  Hence move their declarations
from the public header file <linux/dmaengine.h> to the private header
file drivers/dma/dmaengine.h.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Acked-by: Arnd Bergmann <arnd@...db.de>
---
v2:
  - Add Acked-by,
  - Rebase on top of today's slave-dma/next.
---
 drivers/dma/dmaengine.h   | 3 +++
 drivers/dma/of-dma.c      | 2 ++
 include/linux/dmaengine.h | 2 --
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/dmaengine.h b/drivers/dma/dmaengine.h
index b0b97475707a789f..e8a320c9e57c2d74 100644
--- a/drivers/dma/dmaengine.h
+++ b/drivers/dma/dmaengine.h
@@ -179,4 +179,7 @@ dmaengine_desc_callback_valid(struct dmaengine_desc_callback *cb)
 	return (cb->callback) ? true : false;
 }
 
+struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
+struct dma_chan *dma_get_any_slave_channel(struct dma_device *device);
+
 #endif
diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c
index c2d779daa4b51ac8..b2c2b5e8093cf0d7 100644
--- a/drivers/dma/of-dma.c
+++ b/drivers/dma/of-dma.c
@@ -15,6 +15,8 @@
 #include <linux/of.h>
 #include <linux/of_dma.h>
 
+#include "dmaengine.h"
+
 static LIST_HEAD(of_dma_list);
 static DEFINE_MUTEX(of_dma_lock);
 
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 230d50ef7360ecee..9cc0e70e7c3543a9 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -1522,8 +1522,6 @@ int dma_async_device_register(struct dma_device *device);
 int dmaenginem_async_device_register(struct dma_device *device);
 void dma_async_device_unregister(struct dma_device *device);
 void dma_run_dependencies(struct dma_async_tx_descriptor *tx);
-struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
-struct dma_chan *dma_get_any_slave_channel(struct dma_device *device);
 #define dma_request_channel(mask, x, y) \
 	__dma_request_channel(&(mask), x, y, NULL)
 
-- 
2.17.1