exit consume_buffered_packets early if empty

[apfitzge]

Problem

• If there are no packets to process we can return immediately
• There are some errors of missing sysvars for slot 0 that pop up in many test logs due to calls to this function...even if there are no votes to process!

Example Test Output

running 1 test
[2025-03-05T17:29:09.481913000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:09.582663000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:09.687719000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:09.789760000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:09.891041000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:09.996087000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.099869000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.204927000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.307708000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.407768000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.512830000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.617898000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.722953000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.828012000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:10.929943000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.031430000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.136513000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.241574000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.346634000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.448110000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.551050000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.656116000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.757775000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.862827000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:11.967878000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:12.072931000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:12.177988000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:12.278222000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:12.383270000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
[2025-03-05T17:29:12.488331000Z ERROR solana_core::banking_stage::latest_unprocessed_votes] Slot hashes sysvar doesn't exist on bank 0. Including all votes without filtering
test banking_stage::tests::test_banking_stage_entryfication::transactionstructure_view_expects ... ok

Summary of Changes

• Immediately exit work loop if there is no work to do 🤯

Fixes #

[steviez]

LGTM