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-rw-r--r--include/crc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/crc.h b/include/crc.h
index 10560c9fa9..4290f41c57 100644
--- a/include/crc.h
+++ b/include/crc.h
@@ -95,6 +95,6 @@ cyg_ether_crc32_accumulate(uint32_t crc, unsigned char *s, int len);
/* 16 bit CRC with polynomial x^16+x^12+x^5+1 */
-extern uint16_t cyg_crc16(unsigned char *s, int len);
+extern uint16_t cyg_crc16(const unsigned char *s, int len);
#endif /* _SERVICES_CRC_CRC_H_ */