Import of Linux/MIPS 2.1.14

1 files changed, 20 insertions, 0 deletions

diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
new file mode 100644
index 000000000..57b14024c
--- /dev/null
+++ b/include/asm-generic/unaligned.h
@@ -0,0 +1,20 @@
+#ifndef _ASM_GENERIC_UNALIGNED_H_
+#define _ASM_GENERIC_UNALIGNED_H_
+
+/*
+ * For the benefit of those who are trying to port Linux to another
+ * architecture, here are some C-language equivalents. 
+ */
+
+#include <asm/string.h>
+
+
+#define get_unaligned(ptr) \
+  ({ __typeof__(*(ptr)) __tmp; memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
+
+#define put_unaligned(val, ptr)				\
+  ({ __typeof__(*(ptr)) __tmp = (val);			\
+     memcpy((ptr), &__tmp, sizeof(*(ptr)));		\
+     (void)0; })
+
+#endif /* _ASM_GENERIC_UNALIGNED_H */