diff --git a/src/nouveau/compiler/bitview/lib.rs b/src/nouveau/compiler/bitview/lib.rs
index b0ee59295bf..d76e36a2f9d 100644
--- a/src/nouveau/compiler/bitview/lib.rs
+++ b/src/nouveau/compiler/bitview/lib.rs
@@ -246,7 +246,7 @@ pub trait SetFieldU64 {
     fn set_field_u64(&mut self, range: Range<usize>, val: u64);
 }
 
-impl<'a, BS: BitMutViewable + ?Sized> SetFieldU64 for BitMutView<'a, BS> {
+impl<'a, BS: BitMutViewable> SetFieldU64 for BS {
     fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
         let bits = range.end - range.start;
 
diff --git a/src/nouveau/compiler/nak/sm20.rs b/src/nouveau/compiler/nak/sm20.rs
index acbbf65bb7e..7d503f20231 100644
--- a/src/nouveau/compiler/nak/sm20.rs
+++ b/src/nouveau/compiler/nak/sm20.rs
@@ -7,7 +7,6 @@ use crate::legalize::{
 };
 use bitview::{
     BitMutView, BitMutViewable, BitView, BitViewable, SetBit, SetField,
-    SetFieldU64,
 };
 
 use rustc_hash::FxHashMap;
@@ -212,12 +211,6 @@ impl BitMutViewable for SM20Encoder<'_> {
     }
 }
 
-impl SetFieldU64 for SM20Encoder<'_> {
-    fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
-        BitMutView::new(&mut self.inst).set_field_u64(range, val);
-    }
-}
-
 impl SM20Encoder<'_> {
     fn set_opcode(&mut self, unit: SM20Unit, opcode: u8) {
         self.set_field(0..3, unit as u8);
diff --git a/src/nouveau/compiler/nak/sm32.rs b/src/nouveau/compiler/nak/sm32.rs
index feb923f987b..71e9838ba6e 100644
--- a/src/nouveau/compiler/nak/sm32.rs
+++ b/src/nouveau/compiler/nak/sm32.rs
@@ -8,7 +8,6 @@ use crate::legalize::{
 };
 use bitview::{
     BitMutView, BitMutViewable, BitView, BitViewable, SetBit, SetField,
-    SetFieldU64,
 };
 
 use rustc_hash::FxHashMap;
@@ -177,12 +176,6 @@ impl BitMutViewable for SM32Encoder<'_> {
     }
 }
 
-impl SetFieldU64 for SM32Encoder<'_> {
-    fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
-        BitMutView::new(&mut self.inst).set_field_u64(range, val);
-    }
-}
-
 impl SM32Encoder<'_> {
     fn set_opcode(&mut self, opcode: u16, functional_unit: u8) {
         self.set_field(52..64, opcode);
diff --git a/src/nouveau/compiler/nak/sm50.rs b/src/nouveau/compiler/nak/sm50.rs
index 23f6c4c1af9..5cbbe97ed4e 100644
--- a/src/nouveau/compiler/nak/sm50.rs
+++ b/src/nouveau/compiler/nak/sm50.rs
@@ -200,12 +200,6 @@ impl BitMutViewable for SM50Encoder<'_> {
     }
 }
 
-impl SetFieldU64 for SM50Encoder<'_> {
-    fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
-        BitMutView::new(&mut self.inst).set_field_u64(range, val);
-    }
-}
-
 fn zero_reg() -> RegRef {
     RegRef::new(RegFile::GPR, 255, 1)
 }
diff --git a/src/nouveau/compiler/nak/sm70_encode.rs b/src/nouveau/compiler/nak/sm70_encode.rs
index 17227788cda..849b801504e 100644
--- a/src/nouveau/compiler/nak/sm70_encode.rs
+++ b/src/nouveau/compiler/nak/sm70_encode.rs
@@ -40,12 +40,6 @@ impl BitMutViewable for SM70Encoder<'_> {
     }
 }
 
-impl SetFieldU64 for SM70Encoder<'_> {
-    fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
-        BitMutView::new(&mut self.inst).set_field_u64(range, val);
-    }
-}
-
 impl SM70Encoder<'_> {
     /// Maximum encodable UGPR
     ///
diff --git a/src/nouveau/compiler/nak/sph.rs b/src/nouveau/compiler/nak/sph.rs
index a1d3a3f752d..36fd8768efb 100644
--- a/src/nouveau/compiler/nak/sph.rs
+++ b/src/nouveau/compiler/nak/sph.rs
@@ -7,7 +7,6 @@ extern crate nvidia_headers;
 use crate::ir::{ShaderInfo, ShaderIoInfo, ShaderModel, ShaderStageInfo};
 use bitview::{
     BitMutView, BitMutViewable, BitView, BitViewable, SetBit, SetField,
-    SetFieldU64,
 };
 use nak_bindings::*;
 use nvidia_headers::classes::cla097::sph::*;
@@ -91,12 +90,6 @@ impl BitMutViewable for ShaderProgramHeader {
     }
 }
 
-impl SetFieldU64 for ShaderProgramHeader {
-    fn set_field_u64(&mut self, range: Range<usize>, val: u64) {
-        BitMutView::new(&mut self.data).set_field_u64(range, val);
-    }
-}
-
 impl ShaderProgramHeader {
     pub fn new(shader_type: ShaderType, sm: u8) -> Self {
         let mut res = Self {