llc: Make timeval arguments const

Some struct timeval pointer arguments do not have the const qualifier,
albeit the methods do not write to the structures. The next commit
will change related pointers to const, so this commit provides the
required constness.

Sponsored-by: On-Waves ehf

1 files changed, 4 insertions, 2 deletions

diff --git a/src/llc.h b/src/llc.h
index bd717739..065589db 100644
--- a/src/llc.h
+++ b/src/llc.h
@@ -63,8 +63,10 @@ struct gprs_llc {
  * I store the LLC frames that come from the SGSN.
  */
 struct gprs_llc_queue {
-	static void calc_pdu_lifetime(BTS *bts, const uint16_t pdu_delay_csec, struct timeval *tv);
-	static bool is_frame_expired(struct timeval *now, struct timeval *tv);
+	static void calc_pdu_lifetime(BTS *bts, const uint16_t pdu_delay_csec,
+		struct timeval *tv);
+	static bool is_frame_expired(const struct timeval *now,
+		const struct timeval *tv);
 	static bool is_user_data_frame(uint8_t *data, size_t len);
 
 	void init();