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From dbe77cc974cee656eae37e75039dd1a410a4535b Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Sun, 28 Aug 2011 14:19:43 +0200
Subject: [PATCH] include: refresh include files from kernel 3.1-rc3
[Peter: trimmed to bare essentials for buildroot]
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---
diff --git a/include/linux/types.h b/include/linux/types.h
index 8b483c8..630cd3b 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -34,5 +34,18 @@ typedef __u64 __bitwise __be64;
typedef __u16 __bitwise __sum16;
typedef __u32 __bitwise __wsum;
+/*
+ * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
+ * common 32/64-bit compat problems.
+ * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
+ * architectures) and to 8-byte boundaries on 64-bit architetures. The new
+ * aligned_64 type enforces 8-byte alignment so that structs containing
+ * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
+ * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
+ */
+#define __aligned_u64 __u64 __attribute__((aligned(8)))
+#define __aligned_be64 __be64 __attribute__((aligned(8)))
+#define __aligned_le64 __le64 __attribute__((aligned(8)))
+
#endif /* __ASSEMBLY__ */
#endif /* _LINUX_TYPES_H */
--
1.7.8.3
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