From: Christoph Hellwig <hch@lst.de>
Date: Tue, 25 Dec 2018 13:03:32 +0000 (+0100)
Subject: device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2b2812961302c38500c1027778e371c895f1cac4;p=openwrt%2Fstaging%2Fblogic.git

device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT

No need to carry an unused field around.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/linux/device.h b/include/linux/device.h
index 6cb4640b6160..be544400acdd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1017,8 +1017,10 @@ struct device {
 
 	struct list_head	dma_pools;	/* dma pools (if dma'ble) */
 
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
 	struct dma_coherent_mem	*dma_mem; /* internal for coherent mem
 					     override */
+#endif
 #ifdef CONFIG_DMA_CMA
 	struct cma *cma_area;		/* contiguous memory area for dma
 					   allocations */