1 files changed, 46 insertions, 0 deletions

diff --git a/include/linux/unaligned/packed_struct.h b/include/linux/unaligned/packed_struct.h
new file mode 100644
index 000000000000..2498bb9fe002
--- /dev/null
+++ b/include/linux/unaligned/packed_struct.h
@@ -0,0 +1,46 @@
+#ifndef _LINUX_UNALIGNED_PACKED_STRUCT_H
+#define _LINUX_UNALIGNED_PACKED_STRUCT_H
+
+#include <linux/kernel.h>
+
+struct __una_u16 { u16 x __attribute__((packed)); };
+struct __una_u32 { u32 x __attribute__((packed)); };
+struct __una_u64 { u64 x __attribute__((packed)); };
+
+static inline u16 __get_unaligned_cpu16(const void *p)
+{
+        const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+        return ptr->x;
+}
+
+static inline u32 __get_unaligned_cpu32(const void *p)
+{
+        const struct __una_u32 *ptr = (const struct __una_u32 *)p;
+        return ptr->x;
+}
+
+static inline u64 __get_unaligned_cpu64(const void *p)
+{
+        const struct __una_u64 *ptr = (const struct __una_u64 *)p;
+        return ptr->x;
+}
+
+static inline void __put_unaligned_cpu16(u16 val, void *p)
+{
+        struct __una_u16 *ptr = (struct __una_u16 *)p;
+        ptr->x = val;
+}
+
+static inline void __put_unaligned_cpu32(u32 val, void *p)
+{
+        struct __una_u32 *ptr = (struct __una_u32 *)p;
+        ptr->x = val;
+}
+
+static inline void __put_unaligned_cpu64(u64 val, void *p)
+{
+        struct __una_u64 *ptr = (struct __una_u64 *)p;
+        ptr->x = val;
+}
+
+#endif /* _LINUX_UNALIGNED_PACKED_STRUCT_H */