From e855d380fa59614167362a94e87a21a91f3ab470 Mon Sep 17 00:00:00 2001
From: Wentao Ye <44945378+yewentao256@users.noreply.github.com>
Date: Mon, 16 Mar 2026 10:16:14 -0400
Subject: [PATCH] [Compile] Fix compile warning in `moe_permute` (#36529)

Signed-off-by: yewentao256 <zhyanwentao@126.com>
---
 csrc/moe/moe_permute_unpermute_op.cu            |  7 +++----
 .../moe_permute_unpermute_kernel.h              |  2 +-
 .../moe_permute_unpermute_kernel.inl            | 17 ++++++++---------
 3 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/csrc/moe/moe_permute_unpermute_op.cu b/csrc/moe/moe_permute_unpermute_op.cu
index eec8f9854..c7fcb3ecf 100644
--- a/csrc/moe/moe_permute_unpermute_op.cu
+++ b/csrc/moe/moe_permute_unpermute_op.cu
@@ -73,10 +73,9 @@ void moe_permute(
   MOE_DISPATCH(input.scalar_type(), [&] {
     expandInputRowsKernelLauncher<scalar_t>(
         get_ptr<scalar_t>(input), get_ptr<scalar_t>(permuted_input),
-        get_ptr<int>(permuted_experts_id), get_ptr<int>(sorted_row_idx),
-        get_ptr<int>(inv_permuted_idx), get_ptr<int>(permuted_idx),
-        get_ptr<int64_t>(expert_first_token_offset), n_token, valid_num_ptr,
-        n_hidden, topk, n_local_expert, stream);
+        get_ptr<int>(sorted_row_idx), get_ptr<int>(inv_permuted_idx),
+        get_ptr<int>(permuted_idx), get_ptr<int64_t>(expert_first_token_offset),
+        n_token, valid_num_ptr, n_hidden, topk, n_local_expert, stream);
   });
 }
 
diff --git a/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.h b/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.h
index 840b47546..fe44d3015 100644
--- a/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.h
+++ b/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.h
@@ -57,7 +57,7 @@ void sortAndScanExpert(const int* expert_for_source_row, const int* source_rows,
 
 template <typename T>
 void expandInputRowsKernelLauncher(
-    T const* unpermuted_input, T* permuted_output, int* sorted_experts,
+    T const* unpermuted_input, T* permuted_output,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
     int64_t const* expert_first_token_offset, int64_t const num_rows,
diff --git a/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.inl b/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.inl
index bcb2f9ca5..45d96a270 100644
--- a/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.inl
+++ b/csrc/moe/permute_unpermute_kernels/moe_permute_unpermute_kernel.inl
@@ -2,7 +2,7 @@
 
 template <typename T, bool CHECK_SKIPPED>
 __global__ void expandInputRowsKernel(
-    T const* unpermuted_input, T* permuted_output, int* sorted_experts,
+    T const* unpermuted_input, T* permuted_output,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
     int64_t const* expert_first_token_offset, int64_t const num_rows,
@@ -16,7 +16,6 @@ __global__ void expandInputRowsKernel(
   int64_t expanded_dest_row = blockIdx.x;
   int64_t const expanded_source_row =
       expanded_dest_row_to_expanded_source_row[expanded_dest_row];
-  int expert_id = sorted_experts[expanded_dest_row];
 
   if (threadIdx.x == 0) {
     assert(expanded_dest_row <= INT32_MAX);
@@ -54,7 +53,7 @@ __global__ void expandInputRowsKernel(
 
 template <typename T>
 void expandInputRowsKernelLauncher(
-    T const* unpermuted_input, T* permuted_output, int* sorted_experts,
+    T const* unpermuted_input, T* permuted_output,
     int const* expanded_dest_row_to_expanded_source_row,
     int* expanded_source_row_to_expanded_dest_row, int* permuted_idx,
     int64_t const* expert_first_token_offset, int64_t const num_rows,
@@ -70,12 +69,12 @@ void expandInputRowsKernelLauncher(
   bool is_check_skip = num_valid_tokens_ptr != nullptr;
   auto func = func_map[is_check_skip];
 
-  func<<<blocks, threads, 0, stream>>>(
-      unpermuted_input, permuted_output, sorted_experts,
-      expanded_dest_row_to_expanded_source_row,
-      expanded_source_row_to_expanded_dest_row, permuted_idx,
-      expert_first_token_offset, num_rows, num_valid_tokens_ptr, cols, k,
-      num_local_experts);
+  func<<<blocks, threads, 0, stream>>>(unpermuted_input, permuted_output,
+                                       expanded_dest_row_to_expanded_source_row,
+                                       expanded_source_row_to_expanded_dest_row,
+                                       permuted_idx, expert_first_token_offset,
+                                       num_rows, num_valid_tokens_ptr, cols, k,
+                                       num_local_experts);
 }
 
 template <class T, class U>