aboutsummaryrefslogtreecommitdiffstats
path: root/tools/include/linux/unaligned/packed_struct.h
diff options
context:
space:
mode:
authorJames Morris <james.l.morris@oracle.com>2017-07-25 10:44:18 +1000
committerJames Morris <james.l.morris@oracle.com>2017-07-25 10:44:18 +1000
commit53a2ebaaabc1eb8458796fec3bc1e0e80746b642 (patch)
tree9d1f9227b49392cdd2edcc01057517da4f4b09c2 /tools/include/linux/unaligned/packed_struct.h
parentLSM: Remove security_task_create() hook. (diff)
parentLinux 4.13-rc2 (diff)
sync to Linus v4.13-rc2 for subsystem developers to work against
Diffstat (limited to 'tools/include/linux/unaligned/packed_struct.h')
-rw-r--r--tools/include/linux/unaligned/packed_struct.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/tools/include/linux/unaligned/packed_struct.h b/tools/include/linux/unaligned/packed_struct.h
new file mode 100644
index 000000000000..c0d817de4df2
--- /dev/null
+++ b/tools/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; } __packed;
+struct __una_u32 { u32 x; } __packed;
+struct __una_u64 { u64 x; } __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 */