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bpf: use __builtin_memcpy explicitly to build under ubuntu 20.04

This commit is contained in:
Tatsuhiro Tsujikawa 2021-08-30 18:34:26 +09:00
parent 0e52cf76eb
commit c50459b81a
1 changed files with 2 additions and 2 deletions
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4
bpf/reuseport_kern.c
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@ -205,7 +205,7 @@ int select_reuseport(struct sk_reuseport_md *reuse_md) {
switch (qhd.type) { switch (qhd.type) {
case NGTCP2_PKT_INITIAL: case NGTCP2_PKT_INITIAL:
case NGTCP2_PKT_0RTT: case NGTCP2_PKT_0RTT:
memcpy(sk_prefix, pkt_databuf + qhd.dcid_offset, CID_PREFIXLEN); __builtin_memcpy(sk_prefix, pkt_databuf + qhd.dcid_offset, CID_PREFIXLEN);
if (qhd.dcidlen == SV_DCIDLEN) { if (qhd.dcidlen == SV_DCIDLEN) {
psk_index = bpf_map_lookup_elem(&cid_prefix_map, sk_prefix); psk_index = bpf_map_lookup_elem(&cid_prefix_map, sk_prefix);
@ -234,7 +234,7 @@ int select_reuseport(struct sk_reuseport_md *reuse_md) {
return SK_DROP; return SK_DROP;
} }
memcpy(sk_prefix, pkt_databuf + qhd.dcid_offset, CID_PREFIXLEN); __builtin_memcpy(sk_prefix, pkt_databuf + qhd.dcid_offset, CID_PREFIXLEN);
psk_index = bpf_map_lookup_elem(&cid_prefix_map, sk_prefix); psk_index = bpf_map_lookup_elem(&cid_prefix_map, sk_prefix);
if (psk_index == NULL) { if (psk_index == NULL) {