amr: use OSMO_BYTES_FOR_BITS()

Change-Id: Ib92856ede3f493615c24d883954989e952c51157
---
M src/amr.c
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/amr.c b/src/amr.c
index 18e699c..81bcd08 100644
--- a/src/amr.c
+++ b/src/amr.c
@@ -188,7 +188,7 @@
 	}
 
 	/* Calculate new payload length */
-	bwe_payload_len = (AMR_HDR_BWE_LEN_BITS + osmo_amr_bits(ft) + 7) / 8;
+	bwe_payload_len = OSMO_BYTES_FOR_BITS(AMR_HDR_BWE_LEN_BITS + osmo_amr_bits(ft));
 
 	return bwe_payload_len;
 }
@@ -268,7 +268,7 @@
 
 	/* shift of AMR_HDR_BWE_LEN_BITS (10) bits, aka remove BWE Hdr + ToC: */
 	required_len_bits = AMR_HDR_BWE_LEN_BITS + amr_speech_len_bits;
-	if (payload_len < (required_len_bits + 7)/8)
+	if (payload_len < OSMO_BYTES_FOR_BITS(required_len_bits))
 		return -1;
 
 	for (i = 0; i < amr_speech_len_bytes; i++) {
@@ -297,7 +297,7 @@
 		return ft;
 
 	required_len_bits = osmo_amr_bits(ft) + 10;
-	required_len_bytes = (required_len_bits + 7)/8;
+	required_len_bytes = OSMO_BYTES_FOR_BITS(required_len_bits);
 	if (payload_maxlen < required_len_bytes)
 		return -1;
 

