net: sctp: prevent checksum.h from double inclusion
The header file checksum.h is missing proper defines that prevents
it from double inclusion.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index 5a2110d..0cb08e6 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -42,6 +42,9 @@
* be incorporated into the next SCTP release.
*/
+#ifndef __sctp_checksum_h__
+#define __sctp_checksum_h__
+
#include <linux/types.h>
#include <net/sctp/sctp.h>
#include <linux/crc32c.h>
@@ -81,3 +84,5 @@
{
return cpu_to_le32(~crc32);
}
+
+#endif /* __sctp_checksum_h__ */