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-rw-r--r--arch/x86_64/lib/usercopy.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86_64/lib/usercopy.c b/arch/x86_64/lib/usercopy.c
index 9bc2c295818..893d43f838c 100644
--- a/arch/x86_64/lib/usercopy.c
+++ b/arch/x86_64/lib/usercopy.c
@@ -5,6 +5,7 @@
* Copyright 1997 Linus Torvalds
* Copyright 2002 Andi Kleen <ak@suse.de>
*/
+#include <linux/module.h>
#include <asm/uaccess.h>
/*
@@ -47,15 +48,17 @@ __strncpy_from_user(char *dst, const char __user *src, long count)
__do_strncpy_from_user(dst, src, count, res);
return res;
}
+EXPORT_SYMBOL(__strncpy_from_user);
long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
if (access_ok(VERIFY_READ, src, 1))
- __do_strncpy_from_user(dst, src, count, res);
+ return __strncpy_from_user(dst, src, count);
return res;
}
+EXPORT_SYMBOL(strncpy_from_user);
/*
* Zero Userspace
@@ -94,7 +97,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
[zero] "r" (0UL), [eight] "r" (8UL));
return size;
}
-
+EXPORT_SYMBOL(__clear_user);
unsigned long clear_user(void __user *to, unsigned long n)
{
@@ -102,6 +105,7 @@ unsigned long clear_user(void __user *to, unsigned long n)
return __clear_user(to, n);
return n;
}
+EXPORT_SYMBOL(clear_user);
/*
* Return the size of a string (including the ending 0)
@@ -125,6 +129,7 @@ long __strnlen_user(const char __user *s, long n)
s++;
}
}
+EXPORT_SYMBOL(__strnlen_user);
long strnlen_user(const char __user *s, long n)
{
@@ -132,6 +137,7 @@ long strnlen_user(const char __user *s, long n)
return 0;
return __strnlen_user(s, n);
}
+EXPORT_SYMBOL(strnlen_user);
long strlen_user(const char __user *s)
{
@@ -147,6 +153,7 @@ long strlen_user(const char __user *s)
s++;
}
}
+EXPORT_SYMBOL(strlen_user);
unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
{
@@ -155,3 +162,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from, unsigned le
}
return len;
}
+EXPORT_SYMBOL(copy_in_user);
+