kernel: remove gratitutous attribute usage

src/core/hle/kernel/global_scheduler_context.h

@@ -44,7 +44,7 @@ public:
 
     /// Returns a list of all threads managed by the scheduler
     /// This is only safe to iterate while holding the scheduler lock
-    [[nodiscard]] const std::vector<KThread*>& GetThreadList() const {
+    const std::vector<KThread*>& GetThreadList() const {
         return m_thread_list;
     }
 
@@ -64,7 +64,7 @@ public:
     void RegisterDummyThreadForWakeup(KThread* thread);
     void WakeupWaitingDummyThreads();
 
-    [[nodiscard]] LockType& SchedulerLock() {
+    LockType& SchedulerLock() {
         return m_scheduler_lock;
     }
 

src/core/hle/kernel/k_code_memory.h

@@ -42,7 +42,7 @@ public:
     bool IsInitialized() const override {
         return m_is_initialized;
     }
-    static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
+    static void PostDestroy(uintptr_t arg) {}
 
     KProcess* GetOwner() const override {
         return m_owner;

src/core/hle/kernel/k_debug.h

@@ -14,7 +14,7 @@ class KDebug final : public KAutoObjectWithSlabHeapAndContainer<KDebug, KAutoObj
 public:
     explicit KDebug(KernelCore& kernel_) : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
 
-    static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
+    static void PostDestroy(uintptr_t arg) {}
 };
 
 } // namespace Kernel

src/core/hle/kernel/k_memory_block.h

@@ -471,8 +471,8 @@ public:
             m_disable_merge_attribute & KMemoryBlockDisableMergeAttribute::AllRight);
     }
 
-    constexpr void UpdateDeviceDisableMergeStateForShareLeft(
-        [[maybe_unused]] KMemoryPermission new_perm, bool left, [[maybe_unused]] bool right) {
+    constexpr void UpdateDeviceDisableMergeStateForShareLeft(KMemoryPermission new_perm, bool left,
+                                                             bool right) {
         // New permission/right aren't used.
         if (left) {
             m_disable_merge_attribute = static_cast<KMemoryBlockDisableMergeAttribute>(
@@ -482,8 +482,8 @@ public:
         }
     }
 
-    constexpr void UpdateDeviceDisableMergeStateForShareRight(
-        [[maybe_unused]] KMemoryPermission new_perm, [[maybe_unused]] bool left, bool right) {
+    constexpr void UpdateDeviceDisableMergeStateForShareRight(KMemoryPermission new_perm, bool left,
+                                                              bool right) {
         // New permission/left aren't used.
         if (right) {
             m_disable_merge_attribute = static_cast<KMemoryBlockDisableMergeAttribute>(
@@ -499,8 +499,7 @@ public:
         this->UpdateDeviceDisableMergeStateForShareRight(new_perm, left, right);
     }
 
-    constexpr void ShareToDevice([[maybe_unused]] KMemoryPermission new_perm, bool left,
-                                 bool right) {
+    constexpr void ShareToDevice(KMemoryPermission new_perm, bool left, bool right) {
         // New permission isn't used.
 
         // We must either be shared or have a zero lock count.
@@ -516,8 +515,8 @@ public:
         this->UpdateDeviceDisableMergeStateForShare(new_perm, left, right);
     }
 
-    constexpr void UpdateDeviceDisableMergeStateForUnshareLeft(
-        [[maybe_unused]] KMemoryPermission new_perm, bool left, [[maybe_unused]] bool right) {
+    constexpr void UpdateDeviceDisableMergeStateForUnshareLeft(KMemoryPermission new_perm,
+                                                               bool left, bool right) {
         // New permission/right aren't used.
 
         if (left) {
@@ -536,8 +535,8 @@ public:
         }
     }
 
-    constexpr void UpdateDeviceDisableMergeStateForUnshareRight(
-        [[maybe_unused]] KMemoryPermission new_perm, [[maybe_unused]] bool left, bool right) {
+    constexpr void UpdateDeviceDisableMergeStateForUnshareRight(KMemoryPermission new_perm,
+                                                                bool left, bool right) {
         // New permission/left aren't used.
 
         if (right) {
@@ -556,8 +555,7 @@ public:
         this->UpdateDeviceDisableMergeStateForUnshareRight(new_perm, left, right);
     }
 
-    constexpr void UnshareToDevice([[maybe_unused]] KMemoryPermission new_perm, bool left,
-                                   bool right) {
+    constexpr void UnshareToDevice(KMemoryPermission new_perm, bool left, bool right) {
         // New permission isn't used.
 
         // We must be shared.
@@ -575,8 +573,7 @@ public:
         this->UpdateDeviceDisableMergeStateForUnshare(new_perm, left, right);
     }
 
-    constexpr void UnshareToDeviceRight([[maybe_unused]] KMemoryPermission new_perm, bool left,
-                                        bool right) {
+    constexpr void UnshareToDeviceRight(KMemoryPermission new_perm, bool left, bool right) {
         // New permission isn't used.
 
         // We must be shared.
@@ -594,7 +591,7 @@ public:
         this->UpdateDeviceDisableMergeStateForUnshareRight(new_perm, left, right);
     }
 
-    constexpr void LockForIpc(KMemoryPermission new_perm, bool left, [[maybe_unused]] bool right) {
+    constexpr void LockForIpc(KMemoryPermission new_perm, bool left, bool right) {
         // We must either be locked or have a zero lock count.
         ASSERT((m_attribute & KMemoryAttribute::IpcLocked) == KMemoryAttribute::IpcLocked ||
                m_ipc_lock_count == 0);
@@ -626,8 +623,7 @@ public:
         }
     }
 
-    constexpr void UnlockForIpc([[maybe_unused]] KMemoryPermission new_perm, bool left,
-                                [[maybe_unused]] bool right) {
+    constexpr void UnlockForIpc(KMemoryPermission new_perm, bool left, bool right) {
         // New permission isn't used.
 
         // We must be locked.

src/core/hle/kernel/k_page_buffer.h

@@ -29,7 +29,7 @@ public:
     static KPageBuffer* FromPhysicalAddress(Core::System& system, PAddr phys_addr);
 
 private:
-    [[maybe_unused]] alignas(PageSize) std::array<u8, PageSize> m_buffer{};
+    alignas(PageSize) std::array<u8, PageSize> m_buffer{};
 };
 static_assert(sizeof(KPageBuffer) == KPageBufferSlabHeap::BufferSize);
 

src/core/hle/kernel/k_resource_limit.h

@@ -46,7 +46,7 @@ public:
     void Release(LimitableResource which, s64 value);
     void Release(LimitableResource which, s64 value, s64 hint);
 
-    static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
+    static void PostDestroy(uintptr_t arg) {}
 
 private:
     using ResourceArray = std::array<s64, static_cast<std::size_t>(LimitableResource::Count)>;

src/core/hle/kernel/k_system_resource.cpp

@@ -5,9 +5,8 @@
 
 namespace Kernel {
 
-Result KSecureSystemResource::Initialize([[maybe_unused]] size_t size,
-                                         [[maybe_unused]] KResourceLimit* resource_limit,
-                                         [[maybe_unused]] KMemoryManager::Pool pool) {
+Result KSecureSystemResource::Initialize(size_t size, KResourceLimit* resource_limit,
+                                         KMemoryManager::Pool pool) {
     // Unimplemented
     UNREACHABLE();
 }
@@ -17,8 +16,8 @@ void KSecureSystemResource::Finalize() {
     UNREACHABLE();
 }
 
-size_t KSecureSystemResource::CalculateRequiredSecureMemorySize(
-    [[maybe_unused]] size_t size, [[maybe_unused]] KMemoryManager::Pool pool) {
+size_t KSecureSystemResource::CalculateRequiredSecureMemorySize(size_t size,
+                                                                KMemoryManager::Pool pool) {
     // Unimplemented
     UNREACHABLE();
 }

src/core/hle/kernel/k_system_resource.h

@@ -99,7 +99,7 @@ public:
     bool IsInitialized() const {
         return m_is_initialized;
     }
-    static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
+    static void PostDestroy(uintptr_t arg) {}
 
     size_t CalculateRequiredSecureMemorySize() const {
         return CalculateRequiredSecureMemorySize(m_resource_size, m_resource_pool);