From 21cba5771d579c9c352c635fdedf89eb623de8a8 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Wed, 30 Mar 2022 22:40:33 +0200
Subject: [PATCH] nanocoap: constify helper functions

---
 sys/include/net/nanocoap.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/include/net/nanocoap.h b/sys/include/net/nanocoap.h
index 88266dc424..91a57f1269 100644
--- a/sys/include/net/nanocoap.h
+++ b/sys/include/net/nanocoap.h
@@ -324,7 +324,7 @@ static inline uint8_t coap_code(unsigned cls, unsigned detail)
  *
  * @returns     message code class
  */
-static inline unsigned coap_get_code_class(coap_pkt_t *pkt)
+static inline unsigned coap_get_code_class(const coap_pkt_t *pkt)
 {
     return pkt->hdr->code >> 5;
 }
@@ -348,7 +348,7 @@ static inline unsigned coap_get_code_detail(const coap_pkt_t *pkt)
  *
  * @returns     message code in decimal format
  */
-static inline unsigned coap_get_code(coap_pkt_t *pkt)
+static inline unsigned coap_get_code(const coap_pkt_t *pkt)
 {
     return (coap_get_code_class(pkt) * 100) + coap_get_code_detail(pkt);
 }