24 files changed, 201 insertions, 893 deletions

diff --git a/include/asm-alpha/unaligned.h b/include/asm-alpha/unaligned.h
index a1d72846f61c..3787c60aed3f 100644
--- a/include/asm-alpha/unaligned.h
+++ b/include/asm-alpha/unaligned.h
@@ -1,6 +1,11 @@
-#ifndef __ALPHA_UNALIGNED_H
-#define __ALPHA_UNALIGNED_H
+#ifndef _ASM_ALPHA_UNALIGNED_H
+#define _ASM_ALPHA_UNALIGNED_H
 
-#include <asm-generic/unaligned.h>
+#include <linux/unaligned/le_struct.h>
+#include <linux/unaligned/be_byteshift.h>
+#include <linux/unaligned/generic.h>
 
-#endif
+#define get_unaligned __get_unaligned_le
+#define put_unaligned __put_unaligned_le
+
+#endif /* _ASM_ALPHA_UNALIGNED_H */
diff --git a/include/asm-arm/unaligned.h b/include/asm-arm/unaligned.h
index 5db03cf3b905..44593a894903 100644
--- a/include/asm-arm/unaligned.h
+++ b/include/asm-arm/unaligned.h
@@ -1,171 +1,9 @@
-#ifndef __ASM_ARM_UNALIGNED_H
-#define __ASM_ARM_UNALIGNED_H
+#ifndef _ASM_ARM_UNALIGNED_H
+#define _ASM_ARM_UNALIGNED_H
 
-#include <asm/types.h>
-
-extern int __bug_unaligned_x(const void *ptr);
-
-/*
- * What is the most efficient way of loading/storing an unaligned value?
- *
- * That is the subject of this file.  Efficiency here is defined as
- * minimum code size with minimum register usage for the common cases.
- * It is currently not believed that long longs are common, so we
- * trade efficiency for the chars, shorts and longs against the long
- * longs.
- *
- * Current stats with gcc 2.7.2.2 for these functions:
- *
- *      ptrsize get:    code    regs    put:    code    regs
- *      1               1       1               1       2
- *      2               3       2               3       2
- *      4               7       3               7       3
- *      8               20      6               16      6
- *
- * gcc 2.95.1 seems to code differently:
- *
- *      ptrsize get:    code    regs    put:    code    regs
- *      1               1       1               1       2
- *      2               3       2               3       2
- *      4               7       4               7       4
- *      8               19      8               15      6
- *
- * which may or may not be more efficient (depending upon whether
- * you can afford the extra registers).  Hopefully the gcc 2.95
- * is inteligent enough to decide if it is better to use the
- * extra register, but evidence so far seems to suggest otherwise.
- *
- * Unfortunately, gcc is not able to optimise the high word
- * out of long long >> 32, or the low word from long long << 32
- */
-
-#define __get_unaligned_2_le(__p)                                       \
-        (unsigned int)(__p[0] | __p[1] << 8)
-
-#define __get_unaligned_2_be(__p)                                       \
-        (unsigned int)(__p[0] << 8 | __p[1])
-
-#define __get_unaligned_4_le(__p)                                       \
-        (unsigned int)(__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
-
-#define __get_unaligned_4_be(__p)                                       \
-        (unsigned int)(__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
-
-#define __get_unaligned_8_le(__p)                                       \
-        ((unsigned long long)__get_unaligned_4_le((__p+4)) << 32 |      \
-                __get_unaligned_4_le(__p))
-
-#define __get_unaligned_8_be(__p)                                       \
-        ((unsigned long long)__get_unaligned_4_be(__p) << 32 |          \
-                __get_unaligned_4_be((__p+4)))
-
-#define __get_unaligned_le(ptr)                                         \
-        ((__force typeof(*(ptr)))({                                     \
-                const __u8 *__p = (const __u8 *)(ptr);                  \
-                __builtin_choose_expr(sizeof(*(ptr)) == 1, *__p,        \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 2, __get_unaligned_2_le(__p), \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 4, __get_unaligned_4_le(__p), \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 8, __get_unaligned_8_le(__p), \
-                    (void)__bug_unaligned_x(__p)))));                   \
-        }))
-
-#define __get_unaligned_be(ptr)                                         \
-        ((__force typeof(*(ptr)))({                                     \
-                const __u8 *__p = (const __u8 *)(ptr);                  \
-                __builtin_choose_expr(sizeof(*(ptr)) == 1, *__p,        \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 2, __get_unaligned_2_be(__p), \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 4, __get_unaligned_4_be(__p), \
-                  __builtin_choose_expr(sizeof(*(ptr)) == 8, __get_unaligned_8_be(__p), \
-                    (void)__bug_unaligned_x(__p)))));                   \
-        }))
-
-
-static inline void __put_unaligned_2_le(__u32 __v, register __u8 *__p)
-{
-        *__p++ = __v;
-        *__p++ = __v >> 8;
-}
-
-static inline void __put_unaligned_2_be(__u32 __v, register __u8 *__p)
-{
-        *__p++ = __v >> 8;
-        *__p++ = __v;
-}
-
-static inline void __put_unaligned_4_le(__u32 __v, register __u8 *__p)
-{
-        __put_unaligned_2_le(__v >> 16, __p + 2);
-        __put_unaligned_2_le(__v, __p);
-}
-
-static inline void __put_unaligned_4_be(__u32 __v, register __u8 *__p)
-{
-        __put_unaligned_2_be(__v >> 16, __p);
-        __put_unaligned_2_be(__v, __p + 2);
-}
-
-static inline void __put_unaligned_8_le(const unsigned long long __v, register __u8 *__p)
-{
-        /*
-         * tradeoff: 8 bytes of stack for all unaligned puts (2
-         * instructions), or an extra register in the long long
-         * case - go for the extra register.
-         */
-        __put_unaligned_4_le(__v >> 32, __p+4);
-        __put_unaligned_4_le(__v, __p);
-}
-
-static inline void __put_unaligned_8_be(const unsigned long long __v, register __u8 *__p)
-{
-        /*
-         * tradeoff: 8 bytes of stack for all unaligned puts (2
-         * instructions), or an extra register in the long long
-         * case - go for the extra register.
-         */
-        __put_unaligned_4_be(__v >> 32, __p);
-        __put_unaligned_4_be(__v, __p+4);
-}
-
-/*
- * Try to store an unaligned value as efficiently as possible.
- */
-#define __put_unaligned_le(val,ptr)                                     \
-        ({                                                      \
-                (void)sizeof(*(ptr) = (val));                   \
-                switch (sizeof(*(ptr))) {                       \
+#include <linux/unaligned/le_byteshift.h>
+#include <linux/unaligned/be_byteshift.h>
+#include <linux/unaligned/generic.h>