From f6f3930a5b8f78ae84367e73ee39500bca5a2abc Mon Sep 17 00:00:00 2001
From: Ken Chen <cken@google.com>
Date: Fri, 2 Apr 2021 01:44:27 +0800
Subject: [PATCH] Downgrade DNS fail message from Error to Warning

Most DNS fails are caused by network issues, like connection timed out.
Lower log severity from error to warning to conform to go/greenlog.

Test: 1. connect to a WiFi AP without WAN
      2. atest CtsNetTestCases:android.net.cts.DnsResolverTest
      3. adb logcat | grep resNetworkResult:android
Bug: 181269159
Change-Id: Ifeaf250c91a4b9123d200bd62f085c11009f2491
---
 framework/src/android/net/DnsResolver.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/src/android/net/DnsResolver.java b/framework/src/android/net/DnsResolver.java
index 3f7660f570..dac88ad907 100644
--- a/framework/src/android/net/DnsResolver.java
+++ b/framework/src/android/net/DnsResolver.java
@@ -500,7 +500,7 @@ public final class DnsResolver {
                             try {
                                 resp = resNetworkResult(fd);  // Closes fd, marks it invalid.
                             } catch (ErrnoException e) {
-                                Log.e(TAG, "resNetworkResult:" + e.toString());
+                                Log.w(TAG, "resNetworkResult:" + e.toString());
                                 exception = e;
                             }
                         }