---------- Forwarded Message ----------
Subject:
Date: Monday 27 April 2009
From: [email protected]
To: "no To-header on input" <unlisted-recipients:; @gmail-pop.l.google.com>
>From [email protected] Mon Apr 27 16:28:40 2009
References: <[email protected]>
User-Agent: quilt/0.46-1
Date: Mon, 27 Apr 2009 16:20:22 +0200
From: [email protected]
To: [email protected]
Cc: [email protected],
[email protected],
[email protected],
[email protected],
[email protected],
Sam Ravnborg <[email protected]>,
Harvey Harrison <[email protected]>,
Remis Lima Baima <[email protected]>
Subject: [RFC 12/17] asm-generic: add generic unaligned.h
Content-Disposition: inline; filename=0009-asm-generic-add-generic-
unaligned.h.patch
X-Provags-ID: V01U2FsdGVkX180uRkKPtTR6NE5qs40yQi4ziqxITkI8KKYXbv
ceZfZA4rNxQHTjaGg5pO05a3RFhyObTUvhsERRtOhJTrzruub3
3XgHSsqqDkZJnfLEIfR2g==
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 <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Remis Lima Baima <[email protected]>
---
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 */
--