diff --git a/rust/src/dns/parser.rs b/rust/src/dns/parser.rs
index d208875078..94b1762db2 100644
--- a/rust/src/dns/parser.rs
+++ b/rust/src/dns/parser.rs
@@ -50,7 +50,7 @@ pub fn dns_parse_header(i: &[u8]) -> IResult<&[u8], DNSHeader> {
 /// Parameters:
 ///   start: the start of the name
 ///   message: the complete message that start is a part of
-pub fn dns_parse_name<'a, 'b>(start: &'b [u8], message: &'b [u8]) -> IResult<&'b [u8], Vec<u8>> {
+pub fn dns_parse_name<'b>(start: &'b [u8], message: &'b [u8]) -> IResult<&'b [u8], Vec<u8>> {
     let mut pos = start;
     let mut pivot = start;
     let mut name: Vec<u8> = Vec::with_capacity(32);
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index ee5810c668..b814bf85a9 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -32,7 +32,6 @@
 #![allow(clippy::collapsible_if)]
 #![allow(clippy::derive_partial_eq_without_eq)]
 #![allow(clippy::explicit_counter_loop)]
-#![allow(clippy::extra_unused_lifetimes)]
 #![allow(clippy::field_reassign_with_default)]
 #![allow(clippy::manual_find)]
 #![allow(clippy::match_like_matches_macro)]
diff --git a/rust/src/nfs/nfs.rs b/rust/src/nfs/nfs.rs
index 97282ca9c8..26960cdccf 100644
--- a/rust/src/nfs/nfs.rs
+++ b/rust/src/nfs/nfs.rs
@@ -1113,7 +1113,7 @@ impl NFSState {
         }
     }
 
-    pub fn parse_tcp_data_ts_gap<'b>(&mut self, gap_size: u32) -> AppLayerResult {
+    pub fn parse_tcp_data_ts_gap(&mut self, gap_size: u32) -> AppLayerResult {
         SCLogDebug!("parse_tcp_data_ts_gap ({})", gap_size);
         let gap = vec![0; gap_size as usize];
         let consumed = self.filetracker_update(Direction::ToServer, &gap, gap_size);
@@ -1127,7 +1127,7 @@ impl NFSState {
         return AppLayerResult::ok();
     }
 
-    pub fn parse_tcp_data_tc_gap<'b>(&mut self, gap_size: u32) -> AppLayerResult {
+    pub fn parse_tcp_data_tc_gap(&mut self, gap_size: u32) -> AppLayerResult {
         SCLogDebug!("parse_tcp_data_tc_gap ({})", gap_size);
         let gap = vec![0; gap_size as usize];
         let consumed = self.filetracker_update(Direction::ToClient, &gap, gap_size);
@@ -1198,7 +1198,7 @@ impl NFSState {
     }
 
     /// Parsing function, handling TCP chunks fragmentation
-    pub fn parse_tcp_data_ts<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
+    pub fn parse_tcp_data_ts(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
         let mut cur_i = stream_slice.as_slice();
         // take care of in progress file chunk transfers
         // and skip buffer beyond it
@@ -1362,7 +1362,7 @@ impl NFSState {
     }
 
     /// Parsing function, handling TCP chunks fragmentation
-    pub fn parse_tcp_data_tc<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
+    pub fn parse_tcp_data_tc(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
         let mut cur_i = stream_slice.as_slice();
         // take care of in progress file chunk transfers
         // and skip buffer beyond it
@@ -1466,7 +1466,7 @@ impl NFSState {
         AppLayerResult::ok()
     }
     /// Parsing function
-    pub fn parse_udp_ts<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
+    pub fn parse_udp_ts(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
         let input = stream_slice.as_slice();
         SCLogDebug!("parse_udp_ts ({})", input.len());
         self.add_rpc_udp_ts_pdu(flow, stream_slice, input, input.len() as i64);
@@ -1498,7 +1498,7 @@ impl NFSState {
     }
 
     /// Parsing function
-    pub fn parse_udp_tc<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
+    pub fn parse_udp_tc(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult {
         let input = stream_slice.as_slice();
         SCLogDebug!("parse_udp_tc ({})", input.len());
         self.add_rpc_udp_tc_pdu(flow, stream_slice, input, input.len() as i64);
diff --git a/rust/src/smb/dcerpc.rs b/rust/src/smb/dcerpc.rs
index fccdac1b19..9e93232bf4 100644
--- a/rust/src/smb/dcerpc.rs
+++ b/rust/src/smb/dcerpc.rs
@@ -394,7 +394,7 @@ fn smb_read_dcerpc_record_error(state: &mut SMBState,
     return found;
 }
 
-fn dcerpc_response_handle<'b>(tx: &mut SMBTransaction,
+fn dcerpc_response_handle(tx: &mut SMBTransaction,
         vercmd: SMBVerCmdStat,
         dcer: &DceRpcRecord)
 {
@@ -520,7 +520,7 @@ pub fn smb_read_dcerpc_record<'b>(state: &mut SMBState,
 }
 
 /// Try to find out if the input data looks like DCERPC
-pub fn smb_dcerpc_probe<'b>(data: &[u8]) -> bool
+pub fn smb_dcerpc_probe(data: &[u8]) -> bool
 {
     if let Ok((_, recr)) = parse_dcerpc_record(data) {
         SCLogDebug!("SMB: could be DCERPC {:?}", recr);
diff --git a/rust/src/smb/smb.rs b/rust/src/smb/smb.rs
index d5dc6421e4..32ce5f6218 100644
--- a/rust/src/smb/smb.rs
+++ b/rust/src/smb/smb.rs
@@ -1316,7 +1316,7 @@ impl SMBState {
     }
 
     /// Parsing function, handling TCP chunks fragmentation
-    pub fn parse_tcp_data_ts<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult
+    pub fn parse_tcp_data_ts(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult
     {
         let mut cur_i = stream_slice.as_slice();
         let consumed = self.handle_skip(Direction::ToServer, cur_i.len() as u32);
@@ -1645,7 +1645,7 @@ impl SMBState {
     }
 
     /// Parsing function, handling TCP chunks fragmentation
-    pub fn parse_tcp_data_tc<'b>(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult
+    pub fn parse_tcp_data_tc(&mut self, flow: *const Flow, stream_slice: &StreamSlice) -> AppLayerResult
     {
         let mut cur_i = stream_slice.as_slice();
         let consumed = self.handle_skip(Direction::ToClient, cur_i.len() as u32);