datapath: Remove compatibility GRE identifier.

[sliver-openvswitch.git] / include / linux / types.h

diff --git a/include/linux/types.h b/include/linux/types.h
index 8b9227e..b88fb1c 100644 (file)
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -1,13 +1,58 @@
-#ifndef __LINUX_TYPES_USER_WRAPPER_H
-#define __LINUX_TYPES_USER_WRAPPER_H 1
+/*
+ * Copyright (c) 2011 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
+#ifndef LINUX_TYPES_H
+#define LINUX_TYPES_H 1
+
+/* On Linux, this header file just includes <linux/types.h>.
+ *
+ * On other platforms, this header file implements just enough of
+ * <linux/types.h> to allow <linux/openvswitch.h> to work, that is, it defines
+ * the __u<N> and __be<N> types. */
+
+#ifdef __KERNEL__
 #include_next <linux/types.h>
+#elif defined(HAVE_LINUX_TYPES_H)
+/* With some combinations of kernel and userspace headers, including both
+ * <sys/types.h> and <linux/types.h> only works if you do so in that order, so
+ * force it.  */
 
-/* These were only introduced in v2.6.36. */
-#ifndef __aligned_u64
-#define __aligned_u64 __u64 __attribute__((aligned(8)))
-#define __aligned_be64 __be64 __attribute__((aligned(8)))
-#define __aligned_le64 __le64 __attribute__((aligned(8)))
+#ifdef __CHECKER__
+#define __CHECK_ENDIAN__
 #endif
 
+#include <sys/types.h>
+#include_next <linux/types.h>
+#else  /* no <linux/types.h> */
+#include <stdint.h>
+
+#ifdef __CHECKER__
+#define __bitwise__ __attribute__((bitwise))
+#else
+#define __bitwise__
 #endif
+
+typedef uint8_t  __u8;
+typedef uint16_t __u16;
+typedef uint32_t __u32;
+typedef uint64_t __u64;
+
+typedef uint16_t __bitwise__ __be16;
+typedef uint32_t __bitwise__ __be32;
+typedef uint64_t __bitwise__ __be64;
+#endif /* no <linux/types.h> */
+
+#endif /* <linux/types.h> */