--- zzzz-none-000/linux-3.10.107/arch/score/lib/checksum_copy.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/score/lib/checksum_copy.c	2021-02-04 17:41:59.000000000 +0000
@@ -50,3 +50,4 @@
 
 	return csum_partial(dst, len, sum);
 }
+EXPORT_SYMBOL(csum_partial_copy_from_user);