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Diffstat (limited to 'arch/x86/include/asm/uaccess_64.h')
-rw-r--r--arch/x86/include/asm/uaccess_64.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 62546b3a398eb..62acb613114b2 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -47,6 +47,17 @@ copy_user_generic(void *to, const void *from, unsigned len)
}
static __always_inline __must_check unsigned long
+copy_to_user_mcsafe(void *to, const void *from, unsigned len)
+{
+ unsigned long ret;
+
+ __uaccess_begin();
+ ret = memcpy_mcsafe(to, from, len);
+ __uaccess_end();
+ return ret;
+}
+
+static __always_inline __must_check unsigned long
raw_copy_from_user(void *dst, const void __user *src, unsigned long size)
{
int ret = 0;
@@ -194,4 +205,7 @@ __copy_from_user_flushcache(void *dst, const void __user *src, unsigned size)
unsigned long
copy_user_handle_tail(char *to, char *from, unsigned len);
+unsigned long
+mcsafe_handle_tail(char *to, char *from, unsigned len);
+
#endif /* _ASM_X86_UACCESS_64_H */