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-rw-r--r--arch/s390/include/asm/socket.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index 02330c50241..65baa9a83ab 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -65,4 +65,6 @@
#define SO_TIMESTAMPING 37
#define SCM_TIMESTAMPING SO_TIMESTAMPING
+#define SO_PROTOCOL 38
+
#endif /* _ASM_SOCKET_H */