From fc8bc41b84cab6c754a964cd6b6fe5eb91cdf22d Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brecht@blender.org>
Date: Sat, 20 Sep 2025 13:14:35 +0200
Subject: [PATCH] Cleanup: Compiler warning in GPU kernel compilation

Silence false positive about function not returning.

Pull Request: https://projects.blender.org/blender/blender/pulls/146178
---
 intern/cycles/kernel/integrator/volume_stack.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/intern/cycles/kernel/integrator/volume_stack.h b/intern/cycles/kernel/integrator/volume_stack.h
index 6678a78a566..f45b6dc37da 100644
--- a/intern/cycles/kernel/integrator/volume_stack.h
+++ b/intern/cycles/kernel/integrator/volume_stack.h
@@ -23,6 +23,12 @@ ccl_device_forceinline VolumeStack volume_stack_read(const IntegratorGenericStat
   else {
     return integrator_state_read_volume_stack(state, i);
   }
+
+#  ifdef __KERNEL_GPU__
+  /* Silence false positive warning with some GPU compilers. */
+  VolumeStack stack = {};
+  return stack;
+#  endif
 }
 
 template<const bool shadow, typename IntegratorGenericState>