0567f5facb
Switch the default unaligned access method to 'hardware implemented' if HAVE_EFFICIENT_UNALIGNED_ACCESS is set. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
35 lines
1 KiB
C
35 lines
1 KiB
C
#ifndef __ASM_GENERIC_UNALIGNED_H
|
|
#define __ASM_GENERIC_UNALIGNED_H
|
|
|
|
/*
|
|
* This is the most generic implementation of unaligned accesses
|
|
* and should work almost anywhere.
|
|
*/
|
|
#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
|
|
|
|
#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
|
|
# error need to define endianess
|
|
#endif
|
|
|
|
#endif /* __ASM_GENERIC_UNALIGNED_H */
|