Other files using dma.h may fail to compile as follows: In file included from sound/soc/mxs/mxs-pcm.h:22, from sound/soc/mxs/mxs-saif.h:112, from sound/soc/mxs/mxs-sgtl5000.c:34: arch/arm/mach-mxs/include/mach/dma.h:16: warning: 'struct dma_chan' declared inside parameter list arch/arm/mach-mxs/include/mach/dma.h:16: warning: its scope is only this definition or declaration, which is probably not what you want arch/arm/mach-mxs/include/mach/dma.h: In function 'mxs_dma_is_apbh': arch/arm/mach-mxs/include/mach/dma.h:18: error: dereferencing pointer to incomplete type arch/arm/mach-mxs/include/mach/dma.h: At top level: arch/arm/mach-mxs/include/mach/dma.h:21: warning: 'struct dma_chan' declared inside parameter list arch/arm/mach-mxs/include/mach/dma.h: In function 'mxs_dma_is_apbx': arch/arm/mach-mxs/include/mach/dma.h:23: error: dereferencing pointer to incomplete type make[3]: *** [sound/soc/mxs/mxs-sgtl5000.o] Error 1 make[2]: *** [sound/soc/mxs] Error 2 make[1]: *** [sound/soc] Error 2 make: *** [sound] Error 2
It seems it's better for dma.h to include dmaengine.h himself.
Signed-off-by: Dong Aisheng b29396@freescale.com Cc: Sascha Hauer s.hauer@pengutronix.de Cc: Shawn Guo shawn.guo@linaro.org --- arch/arm/mach-mxs/include/mach/dma.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-mxs/include/mach/dma.h b/arch/arm/mach-mxs/include/mach/dma.h index 7f4aeea..203d7c4 100644 --- a/arch/arm/mach-mxs/include/mach/dma.h +++ b/arch/arm/mach-mxs/include/mach/dma.h @@ -9,6 +9,8 @@ #ifndef __MACH_MXS_DMA_H__ #define __MACH_MXS_DMA_H__
+#include <linux/dmaengine.h> + struct mxs_dma_data { int chan_irq; };