first commit

1 files changed, 45 insertions, 0 deletions

diff --git a/include/linux/unaligned/memmove.h b/include/linux/unaligned/memmove.h
new file mode 100644
index 000000000..eeb5a779a
--- /dev/null
+++ b/include/linux/unaligned/memmove.h
@@ -0,0 +1,45 @@
+#ifndef _LINUX_UNALIGNED_MEMMOVE_H
+#define _LINUX_UNALIGNED_MEMMOVE_H
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
+
+static inline u16 __get_unaligned_memmove16(const void *p)
+{
+	u16 tmp;
+	memmove(&tmp, p, 2);
+	return tmp;
+}
+
+static inline u32 __get_unaligned_memmove32(const void *p)
+{
+	u32 tmp;
+	memmove(&tmp, p, 4);
+	return tmp;
+}
+
+static inline u64 __get_unaligned_memmove64(const void *p)
+{
+	u64 tmp;
+	memmove(&tmp, p, 8);
+	return tmp;
+}
+
+static inline void __put_unaligned_memmove16(u16 val, void *p)
+{
+	memmove(p, &val, 2);
+}
+
+static inline void __put_unaligned_memmove32(u32 val, void *p)
+{
+	memmove(p, &val, 4);
+}
+
+static inline void __put_unaligned_memmove64(u64 val, void *p)
+{
+	memmove(p, &val, 8);
+}
+
+#endif /* _LINUX_UNALIGNED_MEMMOVE_H */