6 files changed, 23 insertions, 28 deletions

diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
index 402b46e630f..123b2fe72d0 100644
--- a/arch/microblaze/include/asm/device.h
+++ b/arch/microblaze/include/asm/device.h
@@ -12,29 +12,15 @@
 struct device_node;
 
 struct dev_archdata {
-	/* Optional pointer to an OF device node */
-	struct device_node	*of_node;
-
 	/* DMA operations on that device */
 	struct dma_map_ops	*dma_ops;
 	void                    *dma_data;
 };
 
 struct pdev_archdata {
+	u64 dma_mask;
 };
 
-static inline void dev_archdata_set_node(struct dev_archdata *ad,
-					 struct device_node *np)
-{
-	ad->of_node = np;
-}
-
-static inline struct device_node *
-dev_archdata_get_node(const struct dev_archdata *ad)
-{
-	return ad->of_node;
-}
-
 #endif /* _ASM_MICROBLAZE_DEVICE_H */
 
 
diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h
index ba917cfaefe..73cb9804098 100644
--- a/arch/microblaze/include/asm/of_device.h
+++ b/arch/microblaze/include/asm/of_device.h
@@ -21,9 +21,8 @@
  * probed using OF properties.
  */
 struct of_device {
-	struct device_node	*node; /* to be obsoleted */
-	u64			dma_mask; /* DMA mask */
 	struct device		dev; /* Generic device interface */
+	struct pdev_archdata	archdata;
 };
 
 extern ssize_t of_device_get_modalias(struct of_device *ofdev,
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
index 59efb3fef95..48c4f0335e3 100644
--- a/arch/microblaze/include/asm/system.h
+++ b/arch/microblaze/include/asm/system.h
@@ -12,6 +12,7 @@
 #include <asm/registers.h>
 #include <asm/setup.h>
 #include <asm/irqflags.h>
+#include <asm/cache.h>
 
 #include <asm-generic/cmpxchg.h>
 #include <asm-generic/cmpxchg-local.h>
@@ -96,4 +97,14 @@ extern struct dentry *of_debugfs_root;
 
 #define arch_align_stack(x) (x)
 
+/*
+ * MicroBlaze doesn't handle unaligned accesses in hardware.
+ *
+ * Based on this we force the IP header alignment in network drivers.
+ * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining
+ * cacheline alignment of buffers.
+ */
+#define NET_IP_ALIGN	2
+#define NET_SKB_PAD	L1_CACHE_BYTES
+
 #endif /* _ASM_MICROBLAZE_SYSTEM_H */
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
index b2ca80f6464..8a8e9fc6e0c 100644
--- a/arch/microblaze/include/asm/thread_info.h
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -122,7 +122,7 @@ static inline struct thread_info *current_thread_info(void)
 /* restore singlestep on return to user mode */
 #define TIF_SINGLESTEP		4
 #define TIF_IRET		5 /* return with iret */
-#define TIF_MEMDIE		6
+#define TIF_MEMDIE		6	/* is terminating due to OOM killer */
 #define TIF_SYSCALL_AUDIT	9       /* syscall auditing active */
 #define TIF_SECCOMP		10      /* secure computing */
 #define TIF_FREEZE		14	/* Freezing for suspend */
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
index 9a0f7632c47..b372787886e 100644
--- a/arch/microblaze/kernel/of_device.c
+++ b/arch/microblaze/kernel/of_device.c
@@ -12,7 +12,7 @@
 void of_device_make_bus_id(struct of_device *dev)
 {
 	static atomic_t bus_no_reg_magic;
-	struct device_node *node = dev->node;
+	struct device_node *node = dev->dev.of_node;
 	const u32 *reg;
 	u64 addr;
 	int magic;
@@ -49,11 +49,10 @@ struct of_device *of_device_alloc(struct device_node *np,
 	if (!dev)
 		return NULL;
 
-	dev->node = of_node_get(np);
-	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dev.of_node = of_node_get(np);
+	dev->dev.dma_mask = &dev->archdata.dma_mask;
 	dev->dev.parent = parent;
 	dev->dev.release = of_release_dev;
-	dev->dev.archdata.of_node = np;
 
 	if (bus_id)
 		dev_set_name(&dev->dev, bus_id);
@@ -75,17 +74,17 @@ int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 
 	ofdev = to_of_device(dev);
 
-	if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
+	if (add_uevent_var(env, "OF_NAME=%s", ofdev->dev.of_node->name))
 		return -ENOMEM;
 
-	if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
+	if (add_uevent_var(env, "OF_TYPE=%s", ofdev->dev.of_node->type))
 		return -ENOMEM;
 
 	/* Since the compatible field can contain pretty much anything
 	 * it's not really legal to split it out with commas. We split it
 	 * up using a number of environment variables instead. */
 
-	compat = of_get_property(ofdev->node, "compatible", &cplen);
+	compat = of_get_property(ofdev->dev.of_node, "compatible", &cplen);
 	while (compat && *compat && cplen > 0) {
 		if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
 			return -ENOMEM;
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
index 0dc755286d3..ccf6f4257f4 100644
--- a/arch/microblaze/kernel/of_platform.c
+++ b/arch/microblaze/kernel/of_platform.c
@@ -47,7 +47,7 @@ struct of_device *of_platform_device_create(struct device_node *np,
 	if (!dev)
 		return NULL;
 
-	dev->dma_mask = 0xffffffffUL;
+	dev->archdata.dma_mask = 0xffffffffUL;
 	dev->dev.bus = &of_platform_bus_type;
 
 	/* We do not fill the DMA ops for platform devices by default.
@@ -166,7 +166,7 @@ EXPORT_SYMBOL(of_platform_bus_probe);
 
 static int of_dev_node_match(struct device *dev, void *data)
 {
-	return to_of_device(dev)->node == data;
+	return to_of_device(dev)->dev.of_node == data;
 }
 
 struct of_device *of_find_device_by_node(struct device_node *np)
@@ -184,7 +184,7 @@ EXPORT_SYMBOL(of_find_device_by_node);
 static int of_dev_phandle_match(struct device *dev, void *data)
 {
 	phandle *ph = data;
-	return to_of_device(dev)->node->phandle == *ph;
+	return to_of_device(dev)->dev.of_node->phandle == *ph;
 }
 
 struct of_device *of_find_device_by_phandle(phandle ph)