--- zzzz-none-000/linux-3.10.107/sound/oss/pas2_card.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/oss/pas2_card.c	2021-02-04 17:41:59.000000000 +0000
@@ -74,8 +74,6 @@
  * to support other than the default base address
  */
 
-extern void     mix_write(unsigned char data, int ioaddr);
-
 unsigned char pas_read(int ioaddr)
 {
 	return inb(ioaddr + pas_translate_code);