patch-2.3.23 linux/arch/sh/lib/csum_partial_copy.c

• Lines: 76
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.22/linux/arch/sh/lib/csum_partial_copy.c
• Orig date: Tue Aug 31 17:29:13 1999

diff -u --recursive --new-file v2.3.22/linux/arch/sh/lib/csum_partial_copy.c linux/arch/sh/lib/csum_partial_copy.c
@@ -1,75 +0,0 @@
-/*
- * INET		An implementation of the TCP/IP protocol suite for the LINUX
- *		operating system.  INET is implemented using the  BSD Socket
- *		interface as the means of communication with the user level.
- *
- *		MIPS specific IP/TCP/UDP checksumming routines
- *
- * Authors:	Ralf Baechle, <ralf@waldorf-gmbh.de>
- *		Lots of code moved from tcp.c and ip.c; see those files
- *		for more names.
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
- * $Id: csum_partial_copy.c,v 1.2 1998/09/16 13:29:32 ralf Exp $
- */
-#include <net/checksum.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-/*
- * copy while checksumming, otherwise like csum_partial
- */
-unsigned int csum_partial_copy(const char *src, char *dst, 
-                               int len, unsigned int sum)
-{
-	/*
-	 * It's 2:30 am and I don't feel like doing it real ...
-	 * This is lots slower than the real thing (tm)
-	 */
-	sum = csum_partial(src, len, sum);
-	memcpy(dst, src, len);
-
-	return sum;
-}
-
-/*
- * Copy from userspace and compute checksum.  If we catch an exception
- * then zero the rest of the buffer.
- */
-unsigned int csum_partial_copy_from_user (const char *src, char *dst,
-                                          int len, unsigned int sum,
-                                          int *err_ptr)
-{
-	int missing;
-
-	missing = copy_from_user(dst, src, len);
-	if (missing) {
-		memset(dst + len - missing, 0, missing);
-		*err_ptr = -EFAULT;
-	}
-		
-	return csum_partial(dst, len, sum);
-}
-
-/*
- * Copy to userspace and compute checksum.
- */
-unsigned int csum_partial_copy_to_user (const char *src, char *dst,
-                                        int len, unsigned int sum,
-                                        int *err_ptr)
-{
-	sum = csum_partial(src, len, sum);
-
-	if (copy_to_user(dst, src, len)) {
-		*err_ptr = -EFAULT;
-		return sum;
-	}
-
-	return sum;
-}