linux-next: build warnings after merge of the slave-dma tree

Hi Vinod, After merging the slave-dma tree, today's linux-next build (x86_64 allmodconfig) produced these warning: drivers/dma/dmaengine.c: At top level: include/linux/of_dma.h:47:12: warning: 'of_dma_controller_register' defined but not used [-Wunused-function] include/linux/of_dma.h:55:12:

linux-next: build warnings after merge of the slave-dma tree

Hi Vinod, After merging the slave-dma tree, today's linux-next build (x86_64 allmodconfig) produced these warning: drivers/dma/dmaengine.c: At top level: include/linux/of_dma.h:47:12: warning: 'of_dma_controller_register' defined but not used [-Wunused-function] include/linux/of_dma.h:55:12: