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Simplify if condition in checking the maximum allocated SNs in PDCP

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master
Pedro Alvarez 4 years ago
parent 33808a5cb8
commit c66c96aac7
1 changed files with 2 additions and 2 deletions
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4
lib/src/upper/pdcp_entity_lte.cc
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@ -569,12 +569,12 @@ bool pdcp_entity_lte::store_sdu(uint32_t sn, const unique_byte_buffer_t& sdu)
auto fms_it = undelivered_sdus_queue.begin(); auto fms_it = undelivered_sdus_queue.begin();
uint32_t fms_sn = fms_it->first; uint32_t fms_sn = fms_it->first;
int32_t diff = sn - fms_sn; int32_t diff = sn - fms_sn;
if (diff > 0 && (uint32_t)diff > maximum_allocated_sns_window) { if (diff > (int32_t)maximum_allocated_sns_window) {
// This SN is too large to assign, it may cause HFN de-synchronization. // This SN is too large to assign, it may cause HFN de-synchronization.
logger.debug("This SN is too large to assign. Discarding. SN=%d, FMS=%d, diff=%d", sn, fms_sn, diff); logger.debug("This SN is too large to assign. Discarding. SN=%d, FMS=%d, diff=%d", sn, fms_sn, diff);
return false; return false;
} }
if (diff < 0 && diff < ((-1) * (int32_t)maximum_allocated_sns_window)) { if (diff < 0 && diff > -((int32_t)maximum_allocated_sns_window)) {
// This SN is too large to assign, it may cause HFN de-synchronization. // This SN is too large to assign, it may cause HFN de-synchronization.
logger.debug("This SN is too large to assign. Discarding. SN=%d, FMS=%d, diff=%d", sn, fms_sn, diff); logger.debug("This SN is too large to assign. Discarding. SN=%d, FMS=%d, diff=%d", sn, fms_sn, diff);
return false; return false;

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