diff --git a/Source/Android/jni/MainAndroid.cpp b/Source/Android/jni/MainAndroid.cpp
index 8fe48c992e..eca343be85 100644
--- a/Source/Android/jni/MainAndroid.cpp
+++ b/Source/Android/jni/MainAndroid.cpp
@@ -123,10 +123,6 @@ void Host_RequestRenderWindowSize(int width, int height)
 {
 }
 
-void Host_SetStartupDebuggingParameters()
-{
-}
-
 bool Host_UINeedsControllerState()
 {
   return true;
diff --git a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
index 9ff81b6924..d5cb376766 100644
--- a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
+++ b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
@@ -103,7 +103,7 @@ void CachedInterpreter::ExecuteOneBlock()
       break;
 
     default:
-      ERROR_LOG(POWERPC, "Unknown CachedInterpreter Instruction: %d", code->type);
+      ERROR_LOG(POWERPC, "Unknown CachedInterpreter Instruction: %d", static_cast<int>(code->type));
       break;
     }
   }
diff --git a/Source/Core/Core/PowerPC/PPCAnalyst.cpp b/Source/Core/Core/PowerPC/PPCAnalyst.cpp
index 17b64462b5..b59b54d26b 100644
--- a/Source/Core/Core/PowerPC/PPCAnalyst.cpp
+++ b/Source/Core/Core/PowerPC/PPCAnalyst.cpp
@@ -644,28 +644,11 @@ void PPCAnalyzer::SetInstructionStats(CodeBlock* block, CodeOp* code, const Gekk
   if (opinfo->flags & FL_IN_FLOAT_S)
     code->fregsIn[code->inst.FS] = true;
 
-  switch (opinfo->type)
+  // For analysis purposes, we can assume that blr eats opinfo->flags.
+  if (opinfo->type == OpType::Branch && code->inst.hex == 0x4e800020)
   {
-  case OpType::Integer:
-  case OpType::Load:
-  case OpType::Store:
-  case OpType::LoadFP:
-  case OpType::StoreFP:
-    break;
-  case OpType::SingleFP:
-  case OpType::DoubleFP:
-    break;
-  case OpType::Branch:
-    if (code->inst.hex == 0x4e800020)
-    {
-      // For analysis purposes, we can assume that blr eats opinfo->flags.
-      code->outputCR0 = true;
-      code->outputCR1 = true;
-    }
-    break;
-  case OpType::System:
-  case OpType::SystemFP:
-    break;
+    code->outputCR0 = true;
+    code->outputCR1 = true;
   }
 }
 
diff --git a/Source/Core/DolphinQt2/Translation.cpp b/Source/Core/DolphinQt2/Translation.cpp
index 191a721c3b..1fd00e0b2e 100644
--- a/Source/Core/DolphinQt2/Translation.cpp
+++ b/Source/Core/DolphinQt2/Translation.cpp
@@ -217,7 +217,7 @@ private:
   MoFile m_mo_file;
 };
 
-QStringList FindPossibleLanguageCodes(const QString& exact_language_code)
+static QStringList FindPossibleLanguageCodes(const QString& exact_language_code)
 {
   QStringList possible_language_codes;
   possible_language_codes << exact_language_code;
diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index a67f303c10..d5259aa651 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -76,8 +76,8 @@ static bool s_efbCacheIsCleared = false;
 static std::vector<u32>
     s_efbCache[2][EFB_CACHE_WIDTH * EFB_CACHE_HEIGHT];  // 2 for PeekZ and PeekColor
 
-void APIENTRY ErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length,
-                            const char* message, const void* userParam)
+static void APIENTRY ErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity,
+                                   GLsizei length, const char* message, const void* userParam)
 {
   const char* s_source;
   const char* s_type;
diff --git a/Source/DSPTool/StubHost.cpp b/Source/DSPTool/StubHost.cpp
index 502e6e0c7e..f70466f882 100644
--- a/Source/DSPTool/StubHost.cpp
+++ b/Source/DSPTool/StubHost.cpp
@@ -34,9 +34,6 @@ void Host_UpdateMainFrame()
 void Host_RequestRenderWindowSize(int, int)
 {
 }
-void Host_SetStartupDebuggingParameters()
-{
-}
 bool Host_UINeedsControllerState()
 {
   return false;
diff --git a/Source/UnitTests/StubHost.cpp b/Source/UnitTests/StubHost.cpp
index 860992bffd..b20750110a 100644
--- a/Source/UnitTests/StubHost.cpp
+++ b/Source/UnitTests/StubHost.cpp
@@ -36,9 +36,6 @@ void Host_UpdateMainFrame()
 void Host_RequestRenderWindowSize(int, int)
 {
 }
-void Host_SetStartupDebuggingParameters()
-{
-}
 bool Host_UINeedsControllerState()
 {
   return false;