Use -Werror in frameworks/native/services/inputflinger

* Fix/suppress unused-* warnings.

Bug: 66996870
Test: build with WITH_TIDY=1
Change-Id: If1dd59ea4ee8ce51f7b58ae4581531df301c68a8

5 files changed, 12 insertions, 9 deletions

diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index 4fd98e2a7e..238cba362c 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -37,6 +37,9 @@ cc_library_shared {
     ],
 
     cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
         "-Wno-unused-parameter",
         // TODO: Move inputflinger to its own process and mark it hidden
         //-fvisibility=hidden
diff --git a/services/inputflinger/EventHub.cpp b/services/inputflinger/EventHub.cpp
index d2f89959e1..2348d92621 100644
--- a/services/inputflinger/EventHub.cpp
+++ b/services/inputflinger/EventHub.cpp
@@ -69,12 +69,6 @@ namespace android {
 static const char *WAKE_LOCK_ID = "KeyEvents";
 static const char *DEVICE_PATH = "/dev/input";
 
-/* return the larger integer */
-static inline int max(int v1, int v2)
-{
-    return (v1 > v2) ? v1 : v2;
-}
-
 static inline const char* toString(bool value) {
     return value ? "true" : "false";
 }
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index 2efb340eba..043d157c7d 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -1135,8 +1135,6 @@ int32_t InputDispatcher::findTouchedWindowTargetsLocked(nsecs_t currentTime,
         INJECTION_PERMISSION_DENIED
     };
 
-    nsecs_t startTime = now();
-
     // For security reasons, we defer updating the touch state until we are sure that
     // event injection will be allowed.
     int32_t displayId = entry->displayId;
diff --git a/services/inputflinger/host/Android.bp b/services/inputflinger/host/Android.bp
index b8e9bce4bd..775dbdc658 100644
--- a/services/inputflinger/host/Android.bp
+++ b/services/inputflinger/host/Android.bp
@@ -32,6 +32,8 @@ cc_library_shared {
     ],
 
     cflags: [
+        "-Wall",
+        "-Werror",
         "-Wno-unused-parameter",
         // TODO: Move inputflinger to its own process and mark it hidden
         //-fvisibility=hidden
@@ -47,6 +49,8 @@ cc_binary {
 
     srcs: ["main.cpp"],
 
+    cflags: ["-Wall", "-Werror"],
+
     shared_libs: [
         "libbinder",
         "libinputflingerhost",
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index 29d93f034b..a49c8c84c7 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -7,7 +7,11 @@ cc_test {
         "InputDispatcher_test.cpp",
     ],
     test_per_src: true,
-    cflags: ["-Wno-unused-parameter"],
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wno-unused-parameter",
+    ],
     shared_libs = [
         "libcutils",
         "liblog",