[PATCH rtems-libbsd] Import arm64 in_cksum.h correctly

[Kinsey Moore]

When this file was brought in, it came from the wrong location or
freebsd-org hash. This corrects the file such that freebsd-to-rtems.py
runs cleanly.
---
 freebsd/sys/arm64/include/machine/in_cksum.h | 43 +++-----------------
 1 file changed, 6 insertions(+), 37 deletions(-)

diff --git a/freebsd/sys/arm64/include/machine/in_cksum.h b/freebsd/sys/arm64/include/machine/in_cksum.h
index d55b838b..522ba005 100644
--- a/freebsd/sys/arm64/include/machine/in_cksum.h
+++ b/freebsd/sys/arm64/include/machine/in_cksum.h
@@ -1,6 +1,4 @@
 /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
  *
@@ -31,7 +29,6 @@
  *	from tahoe:	in_cksum.c	1.2	86/01/05
  *	from:		@(#)in_cksum.c	1.3 (Berkeley) 1/19/91
  *	from: Id: in_cksum.c,v 1.8 1995/12/03 18:35:19 bde Exp
- *	from: src/sys/alpha/include/in_cksum.h,v 1.7 2005/03/02 21:33:20 joerg
  * $FreeBSD$
  */
 
@@ -40,44 +37,16 @@
 
 #include <sys/cdefs.h>
 
+#ifdef _KERNEL
 #define	in_cksum(m, len)	in_cksum_skip(m, len, 0)
-
+u_short in_addword(u_short sum, u_short b);
+u_short in_cksum_skip(struct mbuf *m, int len, int skip);
+u_int do_cksum(const void *, int);
 #if defined(IPVERSION) && (IPVERSION == 4)
-/*
- * It it useful to have an Internet checksum routine which is inlineable
- * and optimized specifically for the task of computing IP header checksums
- * in the normal case (where there are no options and the header length is
- * therefore always exactly five 32-bit words.
- */
-#ifdef __CC_SUPPORTS___INLINE
-
-static __inline void
-in_cksum_update(struct ip *ip)
-{
-	int __tmpsum;
-	__tmpsum = (int)ntohs(ip->ip_sum) + 256;
-	ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));
-}
-
-#else
-
-#define	in_cksum_update(ip)						\
-	do {								\
-		int __tmpsum;						\
-		__tmpsum = (int)ntohs(ip->ip_sum) + 256;		\
-		ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));	\
-	} while(0)
-
-#endif
+u_int in_cksum_hdr(const struct ip *);
 #endif
 
-#ifdef _KERNEL
-#if defined(IPVERSION) && (IPVERSION == 4)
-u_int in_cksum_hdr(const struct ip *ip);
-#endif
-u_short in_addword(u_short sum, u_short b);
 u_short in_pseudo(u_int sum, u_int b, u_int c);
-u_short in_cksum_skip(struct mbuf *m, int len, int skip);
-#endif
 
+#endif /* _KERNEL */
 #endif /* _MACHINE_IN_CKSUM_H_ */
-- 
2.30.2