dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration

Christoph Hellwig · Christoph Hellwig · commit 974c24c5bed7 · 2018-09-25T15:11:58.000-07:00
The patch adding the infrastructure failed to actually add the symbol declaration, oops.. Fixes: faef877 ("dma-noncoherent: add a arch_sync_dma_for_cpu_all hook") Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Paul Burton <paul.burton@mips.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
@@ -23,6 +23,9 @@ config ARCH_HAS_SYNC_DMA_FOR_CPU
 	bool
 	select NEED_DMA_MAP_STATE
 
+config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
+	bool
+
 config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA
