Merge "Stop reducing RA advertised ipv6 mtu by 16 - not needed." am: cfacebd651
Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1322377
Change-Id: I5e28537689d1a53e99f91eafd494eb3a0c890f46
diff --git a/Tethering/src/android/net/ip/IpServer.java b/Tethering/src/android/net/ip/IpServer.java
index 088b88c..830f6a0 100644
--- a/Tethering/src/android/net/ip/IpServer.java
+++ b/Tethering/src/android/net/ip/IpServer.java
@@ -701,12 +701,7 @@
final String upstreamIface = v6only.getInterfaceName();
params = new RaParams();
- // When BPF offload is enabled, we advertise an mtu lower by 16, which is the closest
- // multiple of 8 >= 14, the ethernet header size. This makes kernel ebpf tethering
- // offload happy. This hack should be reverted once we have the kernel fixed up.
- // Note: this will automatically clamp to at least 1280 (ipv6 minimum mtu)
- // see RouterAdvertisementDaemon.java putMtu()
- params.mtu = mUsingBpfOffload ? v6only.getMtu() - 16 : v6only.getMtu();
+ params.mtu = v6only.getMtu();
params.hasDefaultRoute = v6only.hasIpv6DefaultRoute();
if (params.hasDefaultRoute) params.hopLimit = getHopLimit(upstreamIface, ttlAdjustment);