[RFC 12/17] asm-generic: add generic unaligned.h
flat view
STALE6393d
From: arnd@arndb.de
Date: 2009-04-27 15:10:27
Also in:
linux-arch, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
This implementation can be used by any architecture as a generic
way to provide the unaligned helpers. Many architectures can
override this by using linux/unaligned/access_ok.h.
Cc: Harvey Harrison <redacted>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Remis Lima Baima <redacted>
---
include/asm-generic/unaligned.h | 30 30 + 0 - 0 !
1 file changed, 30 insertions(+)
create mode 100644 include/asm-generic/unaligned.h
Index: linux-2.6/include/asm-generic/unaligned.h
===================================================================--- /dev/null
+++ linux-2.6/include/asm-generic/unaligned.h@@ -0,0 +1,30 @@ +#ifndef __ASM_GENERIC_UNALIGNED_H +#define __ASM_GENERIC_UNALIGNED_H + +/* + * This is the most generic implementation of unaligned accesses + * and should work almost anywhere. + * + * If an architecture can handle unaligned accesses in hardware, + * it may want to use the linux/unaligned/access_ok.h implementation + * instead. + */ +#include <asm/byteorder.h> + +#if defined(__LITTLE_ENDIAN) +# include <linux/unaligned/le_struct.h> +# include <linux/unaligned/be_byteshift.h> +# include <linux/unaligned/generic.h> +# define get_unaligned __get_unaligned_le +# define put_unaligned __put_unaligned_le +#elif defined(__BIG_ENDIAN) +# include <linux/unaligned/be_struct.h> +# include <linux/unaligned/le_byteshift.h> +# 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 */
--