tree 989894009cc0b8c7d4fd2c2d6bb6a8db3fda3b1c
parent 9f3662ee5f6b3d0c570024e1fcd754dd376657c7
author yonghong-song <ys114321@gmail.com> 1539215295 -0700
committer GitHub <noreply@github.com> 1539215295 -0700
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJbvo/ACRBK7hj4Ov3rIwAAdHIIAKClemGTxeVIQaS+sffokkGk
 q5cS8V3tgQUR1kp2py6SMspXx2lcPKn/+JbfmUO1HDn8i0q+EvbyKlwSC6gs8o0i
 2TkmBrhXXJ2v/DgtJSsTwpkwUN+x1f5N6zoshQkHpu3LR6F3m/gZEh9M+O3pIY3+
 K+J/c5rrOwVZuU3/UhchFN/pgCxCrtbpggcvwbZFOqDK32plVV53l0pbCTOTRXhU
 Xp3Kuey5Cqh2aizN142RU5aNqdoIKnuLtKLSm+5xEwGHW5DLC/pKgrdiYoFwgzUp
 V3mF0r4+1Gp3rqfUbIvzfYQf+ZWmAFqgNZHmHXMx0BMyZFroPIrGxyAuMXQkpSg=
 =e8Ye
 -----END PGP SIGNATURE-----
 

sync with latest net-next bpf headers (#2001)

Sync compat bpf.h and virtual_bpf.h with latest net-next versions

Also add a barrier for the test_brb bpf program like below
         meta.prog_id = skb->cb[0];
+        asm volatile("" ::: "memory");
         meta.rx_port_id = skb->cb[1];
so two cb read does not become a 8 byte load which is not
allowed for ubuntu 16.04 kernel (4.4 based). The 8 byte load
is allowed for skb->cb's for later kernels.

Signed-off-by: Yonghong Song <yhs@fb.com>