From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/arch/arm/include/asm/checksum.h | 15 +++++++++++++--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/kernel/arch/arm/include/asm/checksum.h b/kernel/arch/arm/include/asm/checksum.h
index 20043e0..f0f54ae 100644
--- a/kernel/arch/arm/include/asm/checksum.h
+++ b/kernel/arch/arm/include/asm/checksum.h
@@ -35,10 +35,21 @@
*/
__wsum
-csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
+csum_partial_copy_nocheck(const void *src, void *dst, int len);
__wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
+csum_partial_copy_from_user(const void __user *src, void *dst, int len);
+
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+#define _HAVE_ARCH_CSUM_AND_COPY
+static inline
+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len)
+{
+ if (!access_ok(src, len))
+ return 0;
+
+ return csum_partial_copy_from_user(src, dst, len);
+}
/*
* Fold a partial checksum without adding pseudo headers
--
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