linux-kernel - [PATCH] dmaengine: at_hdmac: remove unused function

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Message-Id: <1385491415-31325-1-git-send-email-olof@lixom.net>
Date:	Tue, 26 Nov 2013 10:43:35 -0800
From:	Olof Johansson <olof@...om.net>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Kyungmin Park <kyungmin.park@...sung.com>,
	dmaengine@...r.kernel.org, nicolas.ferre@...el.com,
	linux-kernel@...r.kernel.org, Olof Johansson <olof@...om.net>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [PATCH] dmaengine: at_hdmac: remove unused function

commit 54f8d501e8428 ('dmaengine: remove DMA unmap from drivers')
refactored some code which resulted in an unused function in the at_hdmac
driver:

drivers/dma/at_hdmac_regs.h:350:23: warning: 'chan2parent' defined but
    not used [-Wunused-function]

Fixes: 54f8d501e8428 ('dmaengine: remove DMA unmap from drivers')
Signed-off-by: Olof Johansson <olof@...om.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---

Dan,

Looks like you fixed up the DesignWare driver for the same issue but
this needs it to.

 drivers/dma/at_hdmac_regs.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index f31d647acdfa..2787aba60c6b 100644
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -347,10 +347,6 @@ static struct device *chan2dev(struct dma_chan *chan)
 {
 	return &chan->dev->device;
 }
-static struct device *chan2parent(struct dma_chan *chan)
-{
-	return chan->dev->device.parent;
-}
 
 #if defined(VERBOSE_DEBUG)
 static void vdbg_dump_regs(struct at_dma_chan *atchan)
-- 
1.8.4.1.601.g02b3b1d

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