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-rw-r--r--include/osmocom/gsm/gsm0808_utils.h2
-rw-r--r--src/gsm/gsm0808_utils.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/include/osmocom/gsm/gsm0808_utils.h b/include/osmocom/gsm/gsm0808_utils.h
index 0a7429e9..8746ceba 100644
--- a/include/osmocom/gsm/gsm0808_utils.h
+++ b/include/osmocom/gsm/gsm0808_utils.h
@@ -104,7 +104,7 @@ int gsm0808_dec_cell_id(struct gsm0808_cell_id *ci, const uint8_t *elem, uint8_t
int gsm0808_chan_type_to_speech_codec(uint8_t perm_spch);
int gsm0808_speech_codec_from_chan_type(struct gsm0808_speech_codec *sc,
uint8_t perm_spch);
-uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(struct gsm48_multi_rate_conf *cfg, bool fr);
+uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(const struct gsm48_multi_rate_conf *cfg, bool fr);
/*! Return 3GPP TS 48.008 3.2.2.49 Current Channel Type 1 from enum gsm_chan_t. */
static inline uint8_t gsm0808_current_channel_type_1(enum gsm_chan_t type)
diff --git a/src/gsm/gsm0808_utils.c b/src/gsm/gsm0808_utils.c
index 4b2a5f56..0d6938ef 100644
--- a/src/gsm/gsm0808_utils.c
+++ b/src/gsm/gsm0808_utils.c
@@ -1166,7 +1166,7 @@ int gsm0808_speech_codec_from_chan_type(struct gsm0808_speech_codec *sc,
* \param[in] cfg AMR configuration in GSM 04.08 format.
* \param[in] hint if the resulting configuration shall be used with a FR or HR TCH.
* \returns configuration bits (S0-S15) */
-uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(struct gsm48_multi_rate_conf *cfg,
+uint16_t gsm0808_sc_cfg_from_gsm48_mr_cfg(const struct gsm48_multi_rate_conf *cfg,
bool fr)
{
uint16_t s15_s0 = 0;