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authorSascha Hauer <s.hauer@pengutronix.de>2015-06-04 10:50:24 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-06-08 13:47:54 +0200
commit79eba3029f330682d9ba1f5d248720c761de14a7 (patch)
treecb002f765ebe7adc2821cebcd0c21a2368ce915e
parent244b407841412f416723d710476bb29ca1e5698e (diff)
downloadbarebox-79eba3029f330682d9ba1f5d248720c761de14a7.tar.gz
barebox-79eba3029f330682d9ba1f5d248720c761de14a7.tar.xz
crc16: Make buffer argument const
The buffer is not modified by crc16, so make the argument const. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--crypto/crc16.c2
-rw-r--r--include/crc.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/crc16.c b/crypto/crc16.c
index d22b656379..0b08e9ccde 100644
--- a/crypto/crc16.c
+++ b/crypto/crc16.c
@@ -90,7 +90,7 @@ static const uint16_t crc16_tab[] = {
};
uint16_t
-cyg_crc16(unsigned char *buf, int len)
+cyg_crc16(const unsigned char *buf, int len)
{
int i;
uint16_t cksum;
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_ */