diff --git a/android/config.go b/android/config.go
index 78da32036..bb3cc97ab 100644
--- a/android/config.go
+++ b/android/config.go
@@ -1359,11 +1359,6 @@ func (c *deviceConfig) NativeCoverageEnabledForPath(path string) bool {
 		}
 	}
 	if coverage && len(c.config.productVariables.NativeCoverageExcludePaths) > 0 {
-		// Workaround coverage boot failure.
-		// http://b/269981180
-		if strings.HasPrefix(path, "external/protobuf") {
-			coverage = false
-		}
 		if HasAnyPrefix(path, c.config.productVariables.NativeCoverageExcludePaths) {
 			coverage = false
 		}
diff --git a/cc/config/global.go b/cc/config/global.go
index d65f88351..05dc77354 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -192,10 +192,6 @@ var (
 	}
 
 	noOverrideGlobalCflags = []string{
-		// Workaround for boot loop caused by stack protector.
-		// http://b/267839238
-		"-mllvm -disable-check-noreturn-call",
-
 		"-Werror=bool-operation",
 		"-Werror=implicit-int-float-conversion",
 		"-Werror=int-in-bool-context",
@@ -257,7 +253,6 @@ var (
 		"-Wno-bitwise-instead-of-logical",
 		"-Wno-misleading-indentation",
 		"-Wno-array-parameter",
-		"-Wno-gnu-offsetof-extensions",
 	}
 
 	// Extra cflags for external third-party projects to disable warnings that
@@ -310,8 +305,8 @@ var (
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r487747"
-	ClangDefaultShortVersion = "17"
+	ClangDefaultVersion      = "clang-r475365b"
+	ClangDefaultShortVersion = "16.0.2"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{