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-rw-r--r--include/linux/if_phonet.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h
index 7e98921..d70034b 100644
--- a/include/linux/if_phonet.h
+++ b/include/linux/if_phonet.h
@@ -5,14 +5,15 @@
*
* Copyright (C) 2008 Nokia Corporation. All rights reserved.
*/
+#ifndef LINUX_IF_PHONET_H
+#define LINUX_IF_PHONET_H
-#define PHONET_HEADER_LEN 8 /* Phonet header length */
-
-#define PHONET_MIN_MTU 6
-/* 6 bytes header + 65535 bytes payload */
-#define PHONET_MAX_MTU 65541
+#define PHONET_MIN_MTU 6 /* pn_length = 0 */
+#define PHONET_MAX_MTU 65541 /* pn_length = 0xffff */
#define PHONET_DEV_MTU PHONET_MAX_MTU
#ifdef __KERNEL__
extern struct header_ops phonet_header_ops;
#endif
+
+#endif
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