diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp b/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
index d656f81a4d..202145697e 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/AESnd.cpp
@@ -44,21 +44,21 @@ constexpr u32 VOICE_16_BIT_FLAG = 2;
 
 // These are used in the pre-2020 versions version
 constexpr u32 VOICE_PAUSE_OLD = 0x00000004;
-constexpr u32 VOICE_LOOP_OLD = 0x00000008;    // not used by the DSP
-constexpr u32 VOICE_ONCE_OLD = 0x00000010;    // not used by the DSP
-constexpr u32 VOICE_STREAM_OLD = 0x00000020;  // not used by the DSP
+constexpr u32 VOICE_LOOP_OLD [[maybe_unused]] = 0x00000008;    // not used by the DSP
+constexpr u32 VOICE_ONCE_OLD [[maybe_unused]] = 0x00000010;    // not used by the DSP
+constexpr u32 VOICE_STREAM_OLD [[maybe_unused]] = 0x00000020;  // not used by the DSP
 
 // These were changed in the 2020 version to account for the different flags
 constexpr u32 VOICE_PAUSE_NEW = 0x00000008;
-constexpr u32 VOICE_LOOP_NEW = 0x00000010;    // not used by the DSP
-constexpr u32 VOICE_ONCE_NEW = 0x00000020;    // not used by the DSP
-constexpr u32 VOICE_STREAM_NEW = 0x00000040;  // not used by the DSP
+constexpr u32 VOICE_LOOP_NEW [[maybe_unused]] = 0x00000010;    // not used by the DSP
+constexpr u32 VOICE_ONCE_NEW [[maybe_unused]] = 0x00000020;    // not used by the DSP
+constexpr u32 VOICE_STREAM_NEW [[maybe_unused]] = 0x00000040;  // not used by the DSP
 
 // These did not change between versions
 constexpr u32 VOICE_FINISHED = 0x00100000;
-constexpr u32 VOICE_STOPPED = 0x00200000;  // not used by the DSP
+constexpr u32 VOICE_STOPPED [[maybe_unused]] = 0x00200000;  // not used by the DSP
 constexpr u32 VOICE_RUNNING = 0x40000000;
-constexpr u32 VOICE_USED = 0x80000000;  // not used by the DSP
+constexpr u32 VOICE_USED [[maybe_unused]] = 0x80000000;  // not used by the DSP
 
 // 1<<4 = scale gain by 1/1,    2<<2 = PCM decoding from ARAM, 1<<0 = 8-bit reads
 constexpr u32 ACCELERATOR_FORMAT_8_BIT = 0x0019;
diff --git a/Source/Core/Core/HW/ProcessorInterface.cpp b/Source/Core/Core/HW/ProcessorInterface.cpp
index 70b34ccc81..cea84a4ab4 100644
--- a/Source/Core/Core/HW/ProcessorInterface.cpp
+++ b/Source/Core/Core/HW/ProcessorInterface.cpp
@@ -24,8 +24,8 @@
 
 namespace ProcessorInterface
 {
-constexpr u32 FLIPPER_REV_A = 0x046500B0;
-constexpr u32 FLIPPER_REV_B = 0x146500B1;
+constexpr u32 FLIPPER_REV_A [[maybe_unused]] = 0x046500B0;
+constexpr u32 FLIPPER_REV_B [[maybe_unused]] = 0x146500B1;
 constexpr u32 FLIPPER_REV_C = 0x246500B1;
 
 ProcessorInterfaceManager::ProcessorInterfaceManager(Core::System& system) : m_system(system)