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>
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 606a6f2..5f5d783 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -20,6 +20,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 
+#include <asm/io.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <mach/common.h>
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 1e0f809..e00d61e 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -8,6 +8,7 @@
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
  */
+#include <linux/dma-mapping.h>
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/serial_8250.h>
diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
index 1bd73a04..04c49f7 100644
--- a/arch/arm/mach-davinci/pm.c
+++ b/arch/arm/mach-davinci/pm.c
@@ -17,6 +17,7 @@
 
 #include <asm/cacheflush.h>
 #include <asm/delay.h>
+#include <asm/io.h>
 
 #include <mach/da8xx.h>
 #include <mach/sram.h>
diff --git a/arch/arm/mach-imx/dma-v1.c b/arch/arm/mach-imx/dma-v1.c
index 236f149..f8aa5be 100644
--- a/arch/arm/mach-imx/dma-v1.c
+++ b/arch/arm/mach-imx/dma-v1.c
@@ -26,6 +26,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/clk.h>
 #include <linux/scatterlist.h>
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index 9b98244..b5ecc26 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/dma-mapping.h>
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/clk.h>
diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c
index 5c147fb..a5b9897 100644
--- a/arch/arm/mach-iop13xx/setup.c
+++ b/arch/arm/mach-iop13xx/setup.c
@@ -17,6 +17,7 @@
  *
  */
 
+#include <linux/dma-mapping.h>
 #include <linux/serial_8250.h>
 #include <linux/io.h>
 #ifdef CONFIG_MTD_PHYSMAP
diff --git a/arch/arm/mach-mxs/devices/platform-auart.c b/arch/arm/mach-mxs/devices/platform-auart.c
index 796606c..27608f5 100644
--- a/arch/arm/mach-mxs/devices/platform-auart.c
+++ b/arch/arm/mach-mxs/devices/platform-auart.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <asm/sizes.h>
 #include <mach/mx23.h>
 #include <mach/mx28.h>
diff --git a/arch/arm/mach-mxs/devices/platform-dma.c b/arch/arm/mach-mxs/devices/platform-dma.c
index 295c442..6a0202b1 100644
--- a/arch/arm/mach-mxs/devices/platform-dma.c
+++ b/arch/arm/mach-mxs/devices/platform-dma.c
@@ -6,6 +6,7 @@
  * Free Software Foundation.
  */
 #include <linux/compiler.h>
+#include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/init.h>
 
diff --git a/arch/arm/mach-mxs/devices/platform-fec.c b/arch/arm/mach-mxs/devices/platform-fec.c
index 9859cf28..ae96a4f 100644
--- a/arch/arm/mach-mxs/devices/platform-fec.c
+++ b/arch/arm/mach-mxs/devices/platform-fec.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <asm/sizes.h>
 #include <mach/mx28.h>
 #include <mach/devices-common.h>
diff --git a/arch/arm/plat-mxc/devices/platform-fec.c b/arch/arm/plat-mxc/devices/platform-fec.c
index ccc789e..4fc6ffc 100644
--- a/arch/arm/plat-mxc/devices/platform-fec.c
+++ b/arch/arm/plat-mxc/devices/platform-fec.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <asm/sizes.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
diff --git a/arch/arm/plat-mxc/devices/platform-fsl-usb2-udc.c b/arch/arm/plat-mxc/devices/platform-fsl-usb2-udc.c
index 59c33f6..23ce08e 100644
--- a/arch/arm/plat-mxc/devices/platform-fsl-usb2-udc.c
+++ b/arch/arm/plat-mxc/devices/platform-fsl-usb2-udc.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
 
diff --git a/arch/arm/plat-mxc/devices/platform-imx-fb.c b/arch/arm/plat-mxc/devices/platform-imx-fb.c
index 79a1cb1..2b0b5e0 100644
--- a/arch/arm/plat-mxc/devices/platform-imx-fb.c
+++ b/arch/arm/plat-mxc/devices/platform-imx-fb.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
 
diff --git a/arch/arm/plat-mxc/devices/platform-ipu-core.c b/arch/arm/plat-mxc/devices/platform-ipu-core.c
index edf6503..79d340a 100644
--- a/arch/arm/plat-mxc/devices/platform-ipu-core.c
+++ b/arch/arm/plat-mxc/devices/platform-ipu-core.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
 
diff --git a/arch/arm/plat-mxc/devices/platform-mxc-ehci.c b/arch/arm/plat-mxc/devices/platform-mxc-ehci.c
index cc488f4..e1763e0 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc-ehci.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc-ehci.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
 
diff --git a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
index 90d762f..540d3a7 100644
--- a/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
+++ b/arch/arm/plat-mxc/devices/platform-mxc-mmc.c
@@ -6,6 +6,7 @@
  * the terms of the GNU General Public License version 2 as published by the
  * Free Software Foundation.
  */
+#include <linux/dma-mapping.h>
 #include <mach/hardware.h>
 #include <mach/devices-common.h>
 
diff --git a/arch/arm/plat-nomadik/include/plat/ste_dma40.h b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
index c448860..685c787 100644
--- a/arch/arm/plat-nomadik/include/plat/ste_dma40.h
+++ b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
@@ -10,6 +10,7 @@
 #define STE_DMA40_H
 
 #include <linux/dmaengine.h>
+#include <linux/scatterlist.h>
 #include <linux/workqueue.h>
 #include <linux/interrupt.h>