From 933f8124b003d23ad2cb4054c7d376f9bb8bd7b1 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Fri, 6 Jun 2025 16:08:18 +0900
Subject: [PATCH] wasi-nn: fix the size of tensor->type (#4333)

* this enum is (@witx tag u8) in witx
* it seems that some wasm modules actually use non-zero padding
  and cause errors
* it's a bad practice to use C enum for ABI description anyway
---
 core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h b/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
index 7e25428fc..0d62ce80d 100644
--- a/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
+++ b/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
@@ -79,7 +79,8 @@ typedef struct {
     // dimensions.
     tensor_dimensions *dimensions;
     // Describe the type of element in the tensor (e.g., f32).
-    tensor_type type;
+    uint8_t type;
+    uint8_t _pad[3];
     // Contains the tensor data.
     tensor_data data;
 } tensor;