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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c b/ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c
deleted file mode 100644
index 08e3a335..00000000
--- a/ANDROID_3.4.5/arch/powerpc/lib/checksum_wrappers_64.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2010
- *
- * Author: Anton Blanchard <anton@au.ibm.com>
- */
-#include <linux/export.h>
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/checksum.h>
-#include <asm/uaccess.h>
-
-__wsum csum_and_copy_from_user(const void __user *src, void *dst,
- int len, __wsum sum, int *err_ptr)
-{
- unsigned int csum;
-
- might_sleep();
-
- *err_ptr = 0;
-
- if (!len) {
- csum = 0;
- goto out;
- }
-
- if (unlikely((len < 0) || !access_ok(VERIFY_READ, src, len))) {
- *err_ptr = -EFAULT;
- csum = (__force unsigned int)sum;
- goto out;
- }
-
- csum = csum_partial_copy_generic((void __force *)src, dst,
- len, sum, err_ptr, NULL);
-
- if (unlikely(*err_ptr)) {
- int missing = __copy_from_user(dst, src, len);
-
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *err_ptr = -EFAULT;
- } else {
- *err_ptr = 0;
- }
-
- csum = csum_partial(dst, len, sum);
- }
-
-out:
- return (__force __wsum)csum;
-}
-EXPORT_SYMBOL(csum_and_copy_from_user);
-
-__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
- __wsum sum, int *err_ptr)
-{
- unsigned int csum;
-
- might_sleep();
-
- *err_ptr = 0;
-
- if (!len) {
- csum = 0;
- goto out;
- }
-
- if (unlikely((len < 0) || !access_ok(VERIFY_WRITE, dst, len))) {
- *err_ptr = -EFAULT;
- csum = -1; /* invalid checksum */
- goto out;
- }
-
- csum = csum_partial_copy_generic(src, (void __force *)dst,
- len, sum, NULL, err_ptr);
-
- if (unlikely(*err_ptr)) {
- csum = csum_partial(src, len, sum);
-
- if (copy_to_user(dst, src, len)) {
- *err_ptr = -EFAULT;
- csum = -1; /* invalid checksum */
- }
- }
-
-out:
- return (__force __wsum)csum;
-}
-EXPORT_SYMBOL(csum_and_copy_to_user);