bpf: offload.c - comment out CRITICAL mark
My guess is some 4.14-T devices lack the required
bpf_skb_change_head(), see comment in file at line 321:
// bpf_skb_change_head() is only present on 4.14+ and 2 trivial kernel patches are needed:
// ANDROID: net: bpf: Allow TC programs to call BPF_FUNC_skb_change_head
// ANDROID: net: bpf: permit redirect from ingress L3 to egress L2 devices at near max mtu
// (the first of those has already been upstreamed)
//
// These were added to 4.14+ Android Common Kernel in R (including the original release of ACK 5.4)
// and there is a test in kernel/tests/net/test/bpf_test.py testSkbChangeHead()
// and in system/netd/tests/binder_test.cpp NetdBinderTest TetherOffloadForwarding.
(will revert once we have a release key signed build for
testing on user builds)
Bug: 335390828
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I3517e70543d93ced2c1abd9c0f3ccc2b211d9966
1 file changed
