Lint fixes introduced with Rust 1.83 (#2646)

* Fixes for lint errors introduced with Rust 1.83

* rustfmt

* Fix more lints.

---------

Co-authored-by: Laurent <laurent.mazare@gmail.com>

2 files changed, 20 insertions, 17 deletions

diff --git a/candle-metal-kernels/src/lib.rs b/candle-metal-kernels/src/lib.rs
index 0843cc11..5f948cbf 100644
--- a/candle-metal-kernels/src/lib.rs
+++ b/candle-metal-kernels/src/lib.rs
@@ -372,7 +372,7 @@ pub fn call_unary_contiguous_tiled(
     let encoder = ep.encoder();
     let encoder: &ComputeCommandEncoderRef = encoder.as_ref();
     let tile_size = 2;
-    let tiles = (length + tile_size - 1) / tile_size;
+    let tiles = length.div_ceil(tile_size);
 
     encoder.set_compute_pipeline_state(&pipeline);
 
@@ -594,7 +594,7 @@ pub fn call_reduce_contiguous(
 
     let width = std::cmp::min(
         pipeline.max_total_threads_per_threadgroup(),
-        (elements_to_sum as u64 + 2 - 1) / 2,
+        (elements_to_sum as u64).div_ceil(2),
     )
     .next_power_of_two();
 
@@ -1735,7 +1735,7 @@ pub fn call_sdpa_full(
         }
     };
 
-    let pipeline = kernels.load_pipeline(device, Source::Sdpa, &name)?;
+    let pipeline = kernels.load_pipeline(device, Source::Sdpa, name)?;
     let encoder = ep.encoder();
     let encoder: &ComputeCommandEncoderRef = encoder.as_ref();
     encoder.set_compute_pipeline_state(&pipeline);
@@ -1759,16 +1759,16 @@ pub fn call_sdpa_full(
     let ldo = dk;
 
     let tn = 1;
-    let tm = (m + BM - 1) / BM;
+    let tm = m.div_ceil(BM);
 
     let b_stride_q = dk * qseq;
     let b_stride_k = dk * qseq;
     let b_stride_v = dk * qseq;
     let b_stride_o = dk * qseq;
     let swizzle_log = 0;
-    let gemm_n_iterations_aligned = (n + BN - 1) / BN;
-    let gemm_k_iterations_aligned = (k + bk - 1) / bk;
-    let gemm_sv_m_block_iterations = (m + BM - 1) / BM;
+    let gemm_n_iterations_aligned = n.div_ceil(BN);
+    let gemm_k_iterations_aligned = k.div_ceil(*bk);
+    let gemm_sv_m_block_iterations = m.div_ceil(BM);
     let batch_ndim = batch_shape.len();
 
     let alpha = if softcapping != 1. {
@@ -1906,7 +1906,7 @@ pub fn call_sdpa_vector(
         alpha
     };
 
-    let pipeline = kernels.load_pipeline(device, Source::Sdpa, &name)?;
+    let pipeline = kernels.load_pipeline(device, Source::Sdpa, name)?;
     let encoder = ep.encoder();
     let encoder: &ComputeCommandEncoderRef = encoder.as_ref();
     encoder.set_compute_pipeline_state(&pipeline);
@@ -1933,7 +1933,7 @@ pub fn call_sdpa_vector(
     let grid_dims = MTLSize {
         width: 1,
         height: b as u64,
-        depth: 1 as u64,
+        depth: 1_u64,
     };
     let group_dims = MTLSize {
         width: 1024,
@@ -2320,7 +2320,7 @@ pub fn call_quantized_matmul_mv_t(
 }
 
 fn divide(m: usize, b: usize) -> NSUInteger {
-    ((m + b - 1) / b) as NSUInteger
+    m.div_ceil(b) as NSUInteger
 }
 
 #[allow(clippy::too_many_arguments)]
diff --git a/candle-metal-kernels/src/utils.rs b/candle-metal-kernels/src/utils.rs
index 0092ecfa..025808d7 100644
--- a/candle-metal-kernels/src/utils.rs
+++ b/candle-metal-kernels/src/utils.rs
@@ -8,7 +8,7 @@ use std::ffi::c_void;
 pub(crate) fn linear_split(pipeline: &ComputePipelineState, length: usize) -> (MTLSize, MTLSize) {
     let size = length as u64;
     let width = std::cmp::min(pipeline.max_total_threads_per_threadgroup(), size);
-    let count = (size + width - 1) / width;
+    let count = size.div_ceil(width);
     let thread_group_count = MTLSize {
         width: count,
         height: 1,
@@ -128,7 +128,7 @@ impl EncoderParam for (&Buffer, usize) {
     }
 }
 
-impl<'a> EncoderParam for &BufferOffset<'a> {
+impl EncoderParam for &BufferOffset<'_> {
     fn set_param(encoder: &ComputeCommandEncoderRef, position: u64, data: Self) {
         encoder.set_buffer(position, Some(data.buffer), data.offset_in_bytes as u64);
     }
@@ -169,7 +169,7 @@ pub struct WrappedEncoder<'a> {
     end_encoding_on_drop: bool,
 }
 
-impl<'a> Drop for WrappedEncoder<'a> {
+impl Drop for WrappedEncoder<'_> {
     fn drop(&mut self) {
         if self.end_encoding_on_drop {
             self.inner.end_encoding()
@@ -177,14 +177,15 @@ impl<'a> Drop for WrappedEncoder<'a> {
     }
 }
 
-impl<'a> AsRef<metal::ComputeCommandEncoderRef> for WrappedEncoder<'a> {
+impl AsRef<metal::ComputeCommandEncoderRef> for WrappedEncoder<'_> {
     fn as_ref(&self) -> &metal::ComputeCommandEncoderRef {
         self.inner
     }
 }
 
 impl EncoderProvider for &metal::CommandBuffer {
-    type Encoder<'a> = WrappedEncoder<'a>
+    type Encoder<'a>
+        = WrappedEncoder<'a>
     where
         Self: 'a;
     fn encoder(&self) -> Self::Encoder<'_> {
@@ -196,7 +197,8 @@ impl EncoderProvider for &metal::CommandBuffer {
 }
 
 impl EncoderProvider for &metal::CommandBufferRef {
-    type Encoder<'a> = WrappedEncoder<'a>
+    type Encoder<'a>
+        = WrappedEncoder<'a>
     where
         Self: 'a;
     fn encoder(&self) -> Self::Encoder<'_> {
@@ -208,7 +210,8 @@ impl EncoderProvider for &metal::CommandBufferRef {
 }
 
 impl EncoderProvider for &ComputeCommandEncoderRef {
-    type Encoder<'a> = WrappedEncoder<'a>
+    type Encoder<'a>
+        = WrappedEncoder<'a>
     where
         Self: 'a;
     fn encoder(&self) -> Self::Encoder<'_> {