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-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 382cf71..5b1c984 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
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