From 25656a05414a61266dfff2e214221c5db9efad35 Mon Sep 17 00:00:00 2001
From: Charry Wu <wuzc.charry2013@gmail.com>
Date: Tue, 31 Mar 2026 04:15:47 -0700
Subject: [PATCH] fix(cudnn): remove duplicate ConvBwdData match arm in backend
 graph builder

The operations iterator map in GraphBuilder::build() had two identical
Operation::ConvBwdData arms. The second arm was unreachable dead code.
Removed the duplicate; all seven operation variants are now matched once.

Made-with: Cursor
---
 crates/cudnn/src/backend/graph.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crates/cudnn/src/backend/graph.rs b/crates/cudnn/src/backend/graph.rs
index c070600c..5fd2d358 100644
--- a/crates/cudnn/src/backend/graph.rs
+++ b/crates/cudnn/src/backend/graph.rs
@@ -1,4 +1,4 @@
-use crate::{
+use crate::{
     CudnnContext, CudnnError,
     backend::{Descriptor, Operation},
 };
@@ -39,7 +39,6 @@ impl GraphBuilder {
             let descriptors = operations
                 .iter()
                 .map(|op| match op {
-                    Operation::ConvBwdData { raw, .. } => raw.inner(),
                     Operation::ConvBwdData { raw, .. } => raw.inner(),
                     Operation::ConvBwdFilter { raw, .. } => raw.inner(),
                     Operation::ConvFwd { raw, .. } => raw.inner(),