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authorAlexey Dobriyan <adobriyan@gmail.com>2011-06-16 15:01:34 +0400
committerDavid S. Miller <davem@davemloft.net>2011-06-22 06:17:20 +0400
commitb7f080cfe223b3b7424872639d153695615a9255 (patch)
tree605390854789a6ba53e6813ffc69a948a0466530 /include/linux/dma-direction.h
parent4003b65871c101eb5ce8f37a325feac54aa5c681 (diff)
downloadlinux-b7f080cfe223b3b7424872639d153695615a9255.tar.xz
net: remove mm.h inclusion from netdevice.h
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/dma-direction.h')
-rw-r--r--include/linux/dma-direction.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/dma-direction.h b/include/linux/dma-direction.h
new file mode 100644
index 000000000000..95b6a82f5951
--- /dev/null
+++ b/include/linux/dma-direction.h
@@ -0,0 +1,13 @@
+#ifndef _LINUX_DMA_DIRECTION_H
+#define _LINUX_DMA_DIRECTION_H
+/*
+ * These definitions mirror those in pci.h, so they can be used
+ * interchangeably with their PCI_ counterparts.
+ */
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+ DMA_NONE = 3,
+};
+#endif