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srsLTE
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lib,rlc_am_nr: fix loops for updating st.rx_highest_status and st.rx_next to be bounded by st.rx_next_highest, since rx_next_highest holds the value of the highest possible missing SDU.

This commit is contained in:
Pedro Alvarez 2022-03-24 11:46:13 +00:00
parent 981983377d
commit 6a1f6a35c1
1 changed files with 5 additions and 4 deletions
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9
lib/src/rlc/rlc_am_nr.cc
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@ -1132,9 +1132,9 @@ void rlc_am_nr_rx::handle_data_pdu(uint8_t* payload, uint32_t nof_bytes)
* all bytes have been received.
*/
if (rx_mod_base_nr(header.sn) == rx_mod_base_nr(st.rx_highest_status)) {
uint32_t sn_upd = 0;
uint32_t window_top = st.rx_next + am_window_size(cfg.rx_sn_field_length);
for (sn_upd = (st.rx_highest_status + 1) % mod_nr; sn_upd < window_top; ++sn_upd) {
uint32_t sn_upd = 0;
for (sn_upd = (st.rx_highest_status + 1) % mod_nr; rx_mod_base_nr(sn_upd) < rx_mod_base_nr(st.rx_next_highest);
sn_upd = (sn_upd + 1) % mod_nr) {
if (rx_window->has_sn(sn_upd)) {
if (not(*rx_window)[sn_upd].fully_received) {
break; // first SDU not fully received
@ -1155,7 +1155,8 @@ void rlc_am_nr_rx::handle_data_pdu(uint8_t* payload, uint32_t nof_bytes)
if (rx_mod_base_nr(header.sn) == rx_mod_base_nr(st.rx_next)) {
uint32_t sn_upd = 0;
uint32_t window_top = st.rx_next + am_window_size(cfg.rx_sn_field_length);
for (sn_upd = st.rx_next; sn_upd < window_top; ++sn_upd) {
for (sn_upd = st.rx_next; rx_mod_base_nr(sn_upd) < rx_mod_base_nr(st.rx_next_highest);
sn_upd = (sn_upd + 1) % mod_nr) {
if (rx_window->has_sn(sn_upd)) {
if (not(*rx_window)[sn_upd].fully_received) {
break; // first SDU not fully received