int *src_err_ptr, int *dst_err_ptr);
-extern unsigned int csum_partial_copy_from_user(const char *src, char *dst,
+extern unsigned int csum_partial_copy_from_user(const char __user *src, char *dst,
int len, unsigned int isum, int *errp);
-extern unsigned int csum_partial_copy_to_user(const char *src, char *dst,
+extern unsigned int csum_partial_copy_to_user(const char *src, char __user *dst,
int len, unsigned int isum, int *errp);
extern unsigned int csum_partial_copy_nocheck(const char *src, char *dst, int len,
unsigned int sum);