From 275c286cf7501b838ddfa857e3a31556fc505054 Mon Sep 17 00:00:00 2001
From: bear <boundless.forest@outlook.com>
Date: Wed, 15 May 2024 13:44:03 +0800
Subject: [PATCH] Update trait bound

---
 client/cli/src/frontier_db_cmd/mapping_db.rs | 2 +-
 client/cli/src/frontier_db_cmd/meta_db.rs    | 2 +-
 client/mapping-sync/src/kv/worker.rs         | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/client/cli/src/frontier_db_cmd/mapping_db.rs b/client/cli/src/frontier_db_cmd/mapping_db.rs
index ec4a0c837c..fc6b269caf 100644
--- a/client/cli/src/frontier_db_cmd/mapping_db.rs
+++ b/client/cli/src/frontier_db_cmd/mapping_db.rs
@@ -40,7 +40,7 @@ pub enum MappingKey {
 	EthBlockOrTransactionHash(H256),
 }
 
-pub struct MappingDb<'a, B: BlockT, C: HeaderBackend<B>> {
+pub struct MappingDb<'a, B: BlockT, C> {
 	cmd: &'a FrontierDbCmd,
 	client: Arc<C>,
 	backend: Arc<fc_db::kv::Backend<B, C>>,
diff --git a/client/cli/src/frontier_db_cmd/meta_db.rs b/client/cli/src/frontier_db_cmd/meta_db.rs
index 4c9bde98e2..c94716c7fa 100644
--- a/client/cli/src/frontier_db_cmd/meta_db.rs
+++ b/client/cli/src/frontier_db_cmd/meta_db.rs
@@ -58,7 +58,7 @@ impl FromStr for MetaKey {
 	}
 }
 
-pub struct MetaDb<'a, B: BlockT, C: HeaderBackend<B>> {
+pub struct MetaDb<'a, B: BlockT, C> {
 	cmd: &'a FrontierDbCmd,
 	backend: Arc<fc_db::kv::Backend<B, C>>,
 }
diff --git a/client/mapping-sync/src/kv/worker.rs b/client/mapping-sync/src/kv/worker.rs
index fccc561574..666ddf4639 100644
--- a/client/mapping-sync/src/kv/worker.rs
+++ b/client/mapping-sync/src/kv/worker.rs
@@ -39,7 +39,7 @@ use fp_rpc::EthereumRuntimeRPCApi;
 
 use crate::SyncStrategy;
 
-pub struct MappingSyncWorker<Block: BlockT, C: HeaderBackend<Block>, BE> {
+pub struct MappingSyncWorker<Block: BlockT, C, BE> {
 	import_notifications: ImportNotifications<Block>,
 	timeout: Duration,
 	inner_delay: Option<Delay>,