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-rw-r--r--include/linux/ppp_defs.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/ppp_defs.h b/include/linux/ppp_defs.h
index fde9fa21107b..58c71466a726 100644
--- a/include/linux/ppp_defs.h
+++ b/include/linux/ppp_defs.h
@@ -42,6 +42,8 @@
#ifndef _PPP_DEFS_H_
#define _PPP_DEFS_H_
+#include <linux/crc16.h>
+
/*
* The basic PPP frame.
*/
@@ -95,7 +97,7 @@
#define PPP_INITFCS 0xffff /* Initial FCS value */
#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
-#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
+#define PPP_FCS(fcs, c) crc16_byte(fcs, c)
/*
* Extended asyncmap - allows any character to be escaped.