From e9a6bb35e2636275137fc47837f5afce4dbcf630 Mon Sep 17 00:00:00 2001
From: Brooks <brooks@solana.com>
Date: Wed, 10 Jan 2024 18:16:56 -0500
Subject: [PATCH] Removes remaining unused accounts data len bits (#34732)

---
 program-runtime/src/invoke_context.rs    |  2 --
 program-runtime/src/message_processor.rs | 22 ++--------------------
 runtime/src/bank.rs                      |  2 --
 3 files changed, 2 insertions(+), 24 deletions(-)

diff --git a/program-runtime/src/invoke_context.rs b/program-runtime/src/invoke_context.rs
index 2122f7a74907d2..3ac29b5a58e841 100644
--- a/program-runtime/src/invoke_context.rs
+++ b/program-runtime/src/invoke_context.rs
@@ -185,7 +185,6 @@ impl<'a> InvokeContext<'a> {
         feature_set: Arc<FeatureSet>,
         blockhash: Hash,
         lamports_per_signature: u64,
-        _prev_accounts_data_len: u64,
     ) -> Self {
         Self {
             transaction_context,
@@ -681,7 +680,6 @@ macro_rules! with_mock_invoke_context {
             Arc::new(FeatureSet::all_enabled()),
             Hash::default(),
             0,
-            0,
         );
     };
 }
diff --git a/program-runtime/src/message_processor.rs b/program-runtime/src/message_processor.rs
index f15bcda4a90fcb..a428cf930efeca 100644
--- a/program-runtime/src/message_processor.rs
+++ b/program-runtime/src/message_processor.rs
@@ -35,13 +35,6 @@ impl ::solana_frozen_abi::abi_example::AbiExample for MessageProcessor {
     }
 }
 
-/// Resultant information gathered from calling process_message()
-#[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
-pub struct ProcessedMessageInfo {
-    /// The change in accounts data len
-    pub accounts_data_len_delta: i64,
-}
-
 impl MessageProcessor {
     /// Process a message.
     /// This method calls each instruction in the message over the set of loaded accounts.
@@ -62,9 +55,8 @@ impl MessageProcessor {
         sysvar_cache: &SysvarCache,
         blockhash: Hash,
         lamports_per_signature: u64,
-        current_accounts_data_len: u64,
         accumulated_consumed_units: &mut u64,
-    ) -> Result<ProcessedMessageInfo, TransactionError> {
+    ) -> Result<(), TransactionError> {
         let mut invoke_context = InvokeContext::new(
             transaction_context,
             sysvar_cache,
@@ -75,7 +67,6 @@ impl MessageProcessor {
             feature_set,
             blockhash,
             lamports_per_signature,
-            current_accounts_data_len,
         );
 
         debug_assert_eq!(program_indices.len(), message.instructions().len());
@@ -174,9 +165,7 @@ impl MessageProcessor {
             result
                 .map_err(|err| TransactionError::InstructionError(instruction_index as u8, err))?;
         }
-        Ok(ProcessedMessageInfo {
-            accounts_data_len_delta: 0, // unused
-        })
+        Ok(())
     }
 }
 
@@ -313,7 +302,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert!(result.is_ok());
@@ -363,7 +351,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert_eq!(
@@ -403,7 +390,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert_eq!(
@@ -533,7 +519,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert_eq!(
@@ -567,7 +552,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert!(result.is_ok());
@@ -598,7 +582,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
         assert!(result.is_ok());
@@ -686,7 +669,6 @@ mod tests {
             &sysvar_cache,
             Hash::default(),
             0,
-            0,
             &mut 0,
         );
 
diff --git a/runtime/src/bank.rs b/runtime/src/bank.rs
index 271acb151934bd..612f567ad9d2fb 100644
--- a/runtime/src/bank.rs
+++ b/runtime/src/bank.rs
@@ -4765,7 +4765,6 @@ impl Bank {
         log_messages_bytes_limit: Option<usize>,
         programs_loaded_for_tx_batch: &LoadedProgramsForTxBatch,
     ) -> TransactionExecutionResult {
-        let prev_accounts_data_len = self.load_accounts_data_size();
         let transaction_accounts = std::mem::take(&mut loaded_transaction.accounts);
 
         fn transaction_accounts_lamports_sum(
@@ -4827,7 +4826,6 @@ impl Bank {
             &self.sysvar_cache.read().unwrap(),
             blockhash,
             lamports_per_signature,
-            prev_accounts_data_len,
             &mut executed_units,
         );
         process_message_time.stop();