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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2013-07-10 11:09:12 +0900
committerOlof Johansson <olof@lixom.net>2013-07-22 19:40:01 -0700
commitab116a4df4942c78c189d9b0744dd940ab9e00b9 (patch)
tree386f5e43aa2b5276a60a262b02264e78fa16e163
parentc9250073cdd54339a320b78719761d3ea33714fe (diff)
dmaengine: shdma: fix a build failure on platforms with no DMA support
On platforms with no support for the shdma dmaengine driver build is currently failing with drivers/built-in.o: In function `sh_mobile_sdhi_probe': drivers/mmc/host/sh_mobile_sdhi.c:170: undefined reference to`shdma_chan_filter' Fix the breakage by defining shdma_chan_filter to NULL in such configurations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> [horms+renesas@verge.net.au: Apply change to shdma-base.h instead of sh_dma.h] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Olof Johansson <olof@lixom.net>
-rw-r--r--include/linux/shdma-base.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h
index 382cf710ca9a..5b1c9848124c 100644
--- a/include/linux/shdma-base.h
+++ b/include/linux/shdma-base.h
@@ -124,6 +124,10 @@ void shdma_chan_remove(struct shdma_chan *schan);
int shdma_init(struct device *dev, struct shdma_dev *sdev,
int chan_num);
void shdma_cleanup(struct shdma_dev *sdev);
+#if IS_ENABLED(CONFIG_SH_DMAE_BASE)
bool shdma_chan_filter(struct dma_chan *chan, void *arg);
+#else
+#define shdma_chan_filter NULL
+#endif
#endif