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authorLawrence Brakmo <brakmo@fb.com>2018-01-25 16:14:09 -0800
committerAlexei Starovoitov <ast@kernel.org>2018-01-25 16:41:14 -0800
commitde525be2ca2734865d29c4b67ddd29913b214906 (patch)
tree85e7a4d4b7c45de053c1d9528c1849d65252edfa /net/ipv4/tcp_nv.c
parentb73042b8a28e2603ac178295ab96c876ba5a97a1 (diff)
bpf: Support passing args to sock_ops bpf function
Adds support for passing up to 4 arguments to sock_ops bpf functions. It reusues the reply union, so the bpf_sock_ops structures are not increased in size. Signed-off-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_nv.c')
-rw-r--r--net/ipv4/tcp_nv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_nv.c b/net/ipv4/tcp_nv.c
index 0b5a05bd82e3..ddbce73edae8 100644
--- a/net/ipv4/tcp_nv.c
+++ b/net/ipv4/tcp_nv.c
@@ -146,7 +146,7 @@ static void tcpnv_init(struct sock *sk)
* within a datacenter, where we have reasonable estimates of
* RTTs
*/
- base_rtt = tcp_call_bpf(sk, BPF_SOCK_OPS_BASE_RTT);
+ base_rtt = tcp_call_bpf(sk, BPF_SOCK_OPS_BASE_RTT, 0, NULL);
if (base_rtt > 0) {
ca->nv_base_rtt = base_rtt;
ca->nv_lower_bound_rtt = (base_rtt * 205) >> 8; /* 80% */