From dcf3d3711f6f5d87e6cd6b6673d301475c42df2f Mon Sep 17 00:00:00 2001
From: Patrick Baumann <patb@google.com>
Date: Thu, 16 Jan 2020 15:22:22 -0800
Subject: [PATCH] Don't save self visibility grants

This change avoids unnecessary grants of visibility between uids that
are the same.

Test: atest AppEnumerationTests AppsFilterTest
Change-Id: I32447c3decee18e6149a8a1fdb56027fefbd3804
---
 services/core/java/com/android/server/pm/AppsFilter.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/services/core/java/com/android/server/pm/AppsFilter.java b/services/core/java/com/android/server/pm/AppsFilter.java
index 78e17192ed589..91f9d5cddfdfa 100644
--- a/services/core/java/com/android/server/pm/AppsFilter.java
+++ b/services/core/java/com/android/server/pm/AppsFilter.java
@@ -302,8 +302,9 @@ public class AppsFilter {
      *                   initiating uid.
      */
     public void grantImplicitAccess(int callingUid, int targetUid) {
-        if (mImplicitlyQueryable.add(targetUid, callingUid) && DEBUG_LOGGING) {
-            Slog.wtf(TAG, "implicit access granted: " + callingUid + " -> " + targetUid);
+        if (targetUid != callingUid
+                && mImplicitlyQueryable.add(targetUid, callingUid) && DEBUG_LOGGING) {
+            Slog.wtf(TAG, "implicit access granted: " + targetUid + " -> " + callingUid);
         }
     }