linux-kernel - [PATCH 2/3] dmaengine: pxa_dma: add function declaration

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Message-Id: <1474693119-15939-1-git-send-email-baoyou.xie@linaro.org>
Date:   Sat, 24 Sep 2016 12:58:39 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     dan.j.williams@...el.com, vinod.koul@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, baoyou.xie@...aro.org, xie.baoyou@....com.cn
Subject: [PATCH 2/3] dmaengine: pxa_dma: add function declaration

We get 1 warning when building kernel with W=1:
drivers/dma/pxa_dma.c:1525:5: warning: no previous prototype for 'pxad_toggle_reserved_channel' [-Wmissing-prototypes]

In fact, this function is undeclared in any header files.

So this patch adds function declaration in include/linux/dma/pxa-dma.h.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 include/linux/dma/pxa-dma.h | 1 ++++++
 1 file changed, 1 insertions(+)

diff --git a/include/linux/dma/pxa-dma.h b/include/linux/dma/pxa-dma.h
index 3edc992..1823257 100644
--- a/include/linux/dma/pxa-dma.h
+++ b/include/linux/dma/pxa-dma.h
@@ -17,6 +17,7 @@ struct dma_chan;
 
 #ifdef CONFIG_PXA_DMA
 bool pxad_filter_fn(struct dma_chan *chan, void *param);
+int pxad_toggle_reserved_channel(int legacy_channel);
 #else
 static inline bool pxad_filter_fn(struct dma_chan *chan, void *param)
 {
-- 
2.7.4