From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/lib/checksum.c | 37 +------------------------------------
1 files changed, 1 insertions(+), 36 deletions(-)
diff --git a/kernel/lib/checksum.c b/kernel/lib/checksum.c
index d3ec93f..6860d6b 100644
--- a/kernel/lib/checksum.c
+++ b/kernel/lib/checksum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* INET An implementation of the TCP/IP protocol suite for the LINUX
@@ -22,11 +23,6 @@
* data-registers to hold input values and one tries to
* specify d0 and d1 as scratch registers. Letting gcc
* choose these registers itself solves the problem.
- *
- * 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.
*/
/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access
@@ -148,37 +144,6 @@
return (__force __sum16)~do_csum(buff, len);
}
EXPORT_SYMBOL(ip_compute_csum);
-
-/*
- * copy from fs while checksumming, otherwise like csum_partial
- */
-__wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len,
- __wsum sum, int *csum_err)
-{
- int missing;
-
- missing = __copy_from_user(dst, src, len);
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *csum_err = -EFAULT;
- } else
- *csum_err = 0;
-
- return csum_partial(dst, len, sum);
-}
-EXPORT_SYMBOL(csum_partial_copy_from_user);
-
-/*
- * copy from ds while checksumming, otherwise like csum_partial
- */
-__wsum
-csum_partial_copy(const void *src, void *dst, int len, __wsum sum)
-{
- memcpy(dst, src, len);
- return csum_partial(dst, len, sum);
-}
-EXPORT_SYMBOL(csum_partial_copy);
#ifndef csum_tcpudp_nofold
static inline u32 from64to32(u64 x)
--
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