x86: move exports to actual definitions

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/x86/lib/csum-partial_64.c b/arch/x86/lib/csum-partial_64.c
index 9a7fe6a..378e5d5 100644
--- a/arch/x86/lib/csum-partial_64.c
+++ b/arch/x86/lib/csum-partial_64.c
@@ -135,6 +135,7 @@
 	return (__force __wsum)add32_with_carry(do_csum(buff, len),
 						(__force u32)sum);
 }
+EXPORT_SYMBOL(csum_partial);
 
 /*
  * this routine is used for miscellaneous IP-like checksums, mainly