9 files changed, 61 insertions, 11 deletions

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 24d2e30f1b46..a6a7a1c83f54 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -99,13 +99,7 @@
  * as arm where pointers are 32-bit aligned but there are data types such as
  * u64 which require 64-bit alignment.
  */
-#if defined(ARCH_KMALLOC_MINALIGN)
 #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
-#elif defined(ARCH_SLAB_MINALIGN)
-#define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
-#else
-#define CRYPTO_MINALIGN __alignof__(unsigned long long)
-#endif
 
 #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
 
diff --git a/include/linux/device.h b/include/linux/device.h
index 7bb9f426f3e6..0713e10571dd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -33,6 +33,7 @@ struct class;
 struct class_private;
 struct bus_type;
 struct bus_type_private;
+struct device_node;
 
 struct bus_attribute {
         struct attribute        attr;
@@ -127,6 +128,10 @@ struct device_driver {
 
         bool suppress_bind_attrs;       /* disables bind/unbind via sysfs */
 
+#if defined(CONFIG_OF)
+        const struct of_device_id       *of_match_table;
+#endif
+
         int (*probe) (struct device *dev);
         int (*remove) (struct device *dev);
         void (*shutdown) (struct device *dev);
@@ -435,6 +440,9 @@ struct device {
                                              override */
         /* arch specific additions */
         struct dev_archdata     archdata;
+#ifdef CONFIG_OF
+        struct device_node      *of_node;
+#endif
 
         dev_t                   devt;   /* dev_t, creates the sysfs "dev" */
 
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 6ed1d59bfb1e..21067b418536 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -34,6 +34,7 @@
 #include <linux/device.h>       /* for struct device */
 #include <linux/sched.h>        /* for completion */
 #include <linux/mutex.h>
+#include <linux/of.h>           /* for struct device_node */
 
 extern struct bus_type i2c_bus_type;
 
@@ -251,6 +252,9 @@ struct i2c_board_info {
         unsigned short  addr;
         void            *platform_data;
         struct dev_archdata     *archdata;
+#ifdef CONFIG_OF
+        struct device_node *of_node;
+#endif
         int             irq;
 };
 
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index d3a74e00a3e1..11651facc5f1 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,6 +1,7 @@
 #ifndef _LINUX_OF_DEVICE_H
 #define _LINUX_OF_DEVICE_H
 
+#ifdef CONFIG_OF_DEVICE
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/mod_devicetable.h>
@@ -10,7 +11,7 @@
 #define to_of_device(d) container_of(d, struct of_device, dev)
 
 extern const struct of_device_id *of_match_device(
-        const struct of_device_id *matches, const struct of_device *dev);
+        const struct of_device_id *matches, const struct device *dev);
 
 extern struct of_device *of_dev_get(struct of_device *dev);
 extern void of_dev_put(struct of_device *dev);
@@ -26,5 +27,6 @@ static inline void of_device_free(struct of_device *dev)
 
 extern ssize_t of_device_get_modalias(struct of_device *ofdev,
                                         char *str, ssize_t len);
+#endif /* CONFIG_OF_DEVICE */
 
 #endif /* _LINUX_OF_DEVICE_H */
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index a1ca92ccb0ff..71e1a916d3fa 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -57,6 +57,7 @@ struct boot_param_header {
         __be32  dt_struct_size;         /* size of the DT structure block */
 };
 
+#if defined(CONFIG_OF_FLATTREE)
 /* TBD: Temporary export of fdt globals - remove when code fully merged */
 extern int __initdata dt_root_addr_cells;
 extern int __initdata dt_root_size_cells;
@@ -98,6 +99,9 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname,
 /* Other Prototypes */
 extern void unflatten_device_tree(void);
 extern void early_init_devtree(void *);
+#else /* CONFIG_OF_FLATTREE */
+static inline void unflatten_device_tree(void) {}
+#endif /* CONFIG_OF_FLATTREE */
 
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_OF_FDT_H */
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 908406651330..1643d3761eb4 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -11,6 +11,7 @@
  *
  */
 
+#ifdef CONFIG_OF_DEVICE
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
@@ -30,10 +31,6 @@ extern struct bus_type of_platform_bus_type;
  */
 struct of_platform_driver
 {
-        const char              *name;
-        const struct of_device_id       *match_table;
-        struct module           *owner;
-
         int     (*probe)(struct of_device* dev,
                          const struct of_device_id *match);
         int     (*remove)(struct of_device* dev);
@@ -66,5 +63,6 @@ static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
 extern struct of_device *of_find_device_by_node(struct device_node *np);
 
 extern int of_bus_type_init(struct bus_type *bus, const char *name);
+#endif /* CONFIG_OF_DEVICE */
 
 #endif  /* _LINUX_OF_PLATFORM_H */
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index ca6b2b317991..1812dac8c496 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -16,6 +16,30 @@
 #include <linux/compiler.h>
 #include <linux/kmemtrace.h>
 
+#ifndef ARCH_KMALLOC_MINALIGN
+/*
+ * Enforce a minimum alignment for the kmalloc caches.
+ * Usually, the kmalloc caches are cache_line_size() aligned, except when
+ * DEBUG and FORCED_DEBUG are enabled, then they are BYTES_PER_WORD aligned.
+ * Some archs want to perform DMA into kmalloc caches and need a guaranteed
+ * alignment larger than the alignment of a 64-bit integer.
+ * ARCH_KMALLOC_MINALIGN allows that.
+ * Note that increasing this value may disable some debug features.
+ */
+#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
+#endif
+
+#ifndef ARCH_SLAB_MINALIGN
+/*
+ * Enforce a minimum alignment for all caches.
+ * Intended for archs that get misalignment faults even for BYTES_PER_WORD
+ * aligned buffers. Includes ARCH_KMALLOC_MINALIGN.
+ * If possible: Do not enable this flag for CONFIG_DEBUG_SLAB, it disables
+ * some debug features.
+ */
+#define ARCH_SLAB_MINALIGN 0
+#endif
+
 /*
  * struct kmem_cache
  *
diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h
index 0ec00b39d006..62667f72c2ef 100644
--- a/include/linux/slob_def.h
+++ b/include/linux/slob_def.h
@@ -1,6 +1,14 @@
 #ifndef __LINUX_SLOB_DEF_H
 #define __LINUX_SLOB_DEF_H
 
+#ifndef ARCH_KMALLOC_MINALIGN
+#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long)
+#endif
+
+#ifndef ARCH_SLAB_MINALIGN
+#define ARCH_SLAB_MINALIGN __alignof__(unsigned long)
+#endif
+
 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
 
 static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep,
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 0249d4175bac..55695c8d2f8a 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -116,6 +116,14 @@ struct kmem_cache {
 
 #define KMALLOC_SHIFT_LOW ilog2(KMALLOC_MIN_SIZE)
 
+#ifndef ARCH_KMALLOC_MINALIGN
+#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
+#endif
+
+#ifndef ARCH_SLAB_MINALIGN
+#define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
+#endif
+
 /*
  * Maximum kmalloc object size handled by SLUB. Larger object allocations
  * are passed through to the page allocator. The page allocator "fastpath"