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- commit a2ec6252e4640b573e0db795cd484df73a46b246
- Author: Arnd Bergmann <arnd@arndb.de>
- Date: Fri Mar 4 16:15:20 2016 +0100
- asm-generic: always use struct based unaligned access
- Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
- index 1ac097279db1..e8f5523eeb0a 100644
- --- a/include/asm-generic/unaligned.h
- +++ b/include/asm-generic/unaligned.h
- @@ -3,29 +3,19 @@
- /*
- * This is the most generic implementation of unaligned accesses
- - * and should work almost anywhere.
- + * and should work almost anywhere, we trust that the compiler
- + * knows how to handle unaligned accesses.
- */
- #include <asm/byteorder.h>
- -/* Set by the arch if it can handle unaligned accesses in hardware. */
- -#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- -# include <linux/unaligned/access_ok.h>
- -#endif
- +#include <linux/unaligned/le_struct.h>
- +#include <linux/unaligned/be_struct.h>
- +#include <linux/unaligned/generic.h>
- #if defined(__LITTLE_ENDIAN)
- -# ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- -# include <linux/unaligned/le_struct.h>
- -# include <linux/unaligned/be_byteshift.h>
- -# endif
- -# include <linux/unaligned/generic.h>
- # define get_unaligned __get_unaligned_le
- # define put_unaligned __put_unaligned_le
- #elif defined(__BIG_ENDIAN)
- -# ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
- -# include <linux/unaligned/be_struct.h>
- -# include <linux/unaligned/le_byteshift.h>
- -# endif
- -# include <linux/unaligned/generic.h>
- # define get_unaligned __get_unaligned_be
- # define put_unaligned __put_unaligned_be
- #else
- diff --git a/include/linux/unaligned/be_struct.h b/include/linux/unaligned/be_struct.h
- index 132415836c50..9ab8c53bb3fe 100644
- --- a/include/linux/unaligned/be_struct.h
- +++ b/include/linux/unaligned/be_struct.h
- @@ -2,35 +2,36 @@
- #define _LINUX_UNALIGNED_BE_STRUCT_H
- #include <linux/unaligned/packed_struct.h>
- +#include <asm/byteorder.h>
- static inline u16 get_unaligned_be16(const void *p)
- {
- - return __get_unaligned_cpu16((const u8 *)p);
- + return be16_to_cpu((__le16 __force)__get_unaligned_cpu16((const u8 *)p));
- }
- static inline u32 get_unaligned_be32(const void *p)
- {
- - return __get_unaligned_cpu32((const u8 *)p);
- + return be32_to_cpu((__le32 __force)__get_unaligned_cpu32((const u8 *)p));
- }
- static inline u64 get_unaligned_be64(const void *p)
- {
- - return __get_unaligned_cpu64((const u8 *)p);
- + return be64_to_cpu((__le64 __force)__get_unaligned_cpu64((const u8 *)p));
- }
- static inline void put_unaligned_be16(u16 val, void *p)
- {
- - __put_unaligned_cpu16(val, p);
- + __put_unaligned_cpu16((u16 __force)cpu_to_be16(val), p);
- }
- static inline void put_unaligned_be32(u32 val, void *p)
- {
- - __put_unaligned_cpu32(val, p);
- + __put_unaligned_cpu32((u32 __force)cpu_to_be32(val), p);
- }
- static inline void put_unaligned_be64(u64 val, void *p)
- {
- - __put_unaligned_cpu64(val, p);
- + __put_unaligned_cpu64((u64 __force)cpu_to_be64(val), p);
- }
- #endif /* _LINUX_UNALIGNED_BE_STRUCT_H */
- diff --git a/include/linux/unaligned/le_struct.h b/include/linux/unaligned/le_struct.h
- index 088c4572faa8..64171ad0b100 100644
- --- a/include/linux/unaligned/le_struct.h
- +++ b/include/linux/unaligned/le_struct.h
- @@ -2,35 +2,36 @@
- #define _LINUX_UNALIGNED_LE_STRUCT_H
- #include <linux/unaligned/packed_struct.h>
- +#include <asm/byteorder.h>
- static inline u16 get_unaligned_le16(const void *p)
- {
- - return __get_unaligned_cpu16((const u8 *)p);
- + return le16_to_cpu((__le16 __force)__get_unaligned_cpu16((const u8 *)p));
- }
- static inline u32 get_unaligned_le32(const void *p)
- {
- - return __get_unaligned_cpu32((const u8 *)p);
- + return le32_to_cpu((__le32 __force)__get_unaligned_cpu32((const u8 *)p));
- }
- static inline u64 get_unaligned_le64(const void *p)
- {
- - return __get_unaligned_cpu64((const u8 *)p);
- + return le64_to_cpu((__le64 __force)__get_unaligned_cpu64((const u8 *)p));
- }
- static inline void put_unaligned_le16(u16 val, void *p)
- {
- - __put_unaligned_cpu16(val, p);
- + __put_unaligned_cpu16((u16 __force)cpu_to_le16(val), p);
- }
- static inline void put_unaligned_le32(u32 val, void *p)
- {
- - __put_unaligned_cpu32(val, p);
- + __put_unaligned_cpu32((u32 __force)cpu_to_le32(val), p);
- }
- static inline void put_unaligned_le64(u64 val, void *p)
- {
- - __put_unaligned_cpu64(val, p);
- + __put_unaligned_cpu64((u64 __force)cpu_to_le64(val), p);
- }
- #endif /* _LINUX_UNALIGNED_LE_STRUCT_H */
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